Scholars@Duke
Charles Yoon Kim

Charles Yoon Kim

Professor of Radiology
Radiology, Interventional Radiology
charles.kim@duke.edu
Box 3808 Med Ctr, Durham, NC 27710
Department of Radiology, Durham, NC 27710

Featured Works

Sharp Recanalization of Chronic Central Venous Occlusions of the Thorax Using a Steerable Coaxial Needle Technique from a Supraclavicular Approach.

Journal article Cardiovasc Intervent Radiol · May 2021 Featured Publication PURPOSE: To evaluate the technical success and safety of a steerable coaxial sharp recanalization technique that utilizes routine needles in patients with refractory thoracic central venous occlusions. MATERIALS AND METHODS: This retrospective study was pe ... Full text Link to item Cite

Blunt Transmediastinal Dissection with Radiofrequency Wire Reentry for Extravascular Bypass of Thoracic Central Venous Occlusions Refractory to Recanalization.

Journal article J Vasc Interv Radiol · April 2021 Featured Publication Extravascular perforation is a risk of recanalizing chronic central venous occlusions. The authors describe an endovascular technique to bypass venous occlusions using a combination of a hydrophilic guide wire and radiofrequency wire in 7 patients to achie ... Full text Link to item Cite

Percutaneous gastrojejunostomy tubes: Identification of predictors of retrograde jejunal limb migration into the stomach.

Journal article Clin Imaging · February 2021 Featured Publication PURPOSE: To identify whether technically modifiable factors during gastrojejunostomy (GJ) tube insertion are predictive of retrograde jejunal limb migration into the stomach. MATERIALS AND METHODS: Retrospective review of our procedural database over a 5-y ... Full text Link to item Cite

Percutaneous Gastrojejunostomy Tube Insertion in Patients with Surgical Gastrojejunal Anastomoses: Analysis of Success Rates and Durability.

Journal article J Vasc Interv Radiol · February 2021 Featured Publication Patients with a gastrojejunal anastomosis pose challenging anatomy for percutaneous gastrojejunostomy (GJ)-tube placement. A retrospective review of 24 patients (mean age 67.8 years, 13 males) with GJ anastomoses who underwent attempted GJ tube placement r ... Full text Link to item Cite

Ferumoxytol-enhanced MR Venography of the Central Veins of the Thorax for the Evaluation of Stenosis and Occlusion in Patients with Renal Impairment.

Journal article Radiol Cardiothorac Imaging · December 2020 Featured Publication PURPOSE: To assess the diagnostic performance of ferumoxytol-enhanced MR venography for the detection of thoracic central vein stenosis or occlusion with conventional venography as the reference standard. MATERIALS AND METHODS: In this retrospective study, ... Full text Link to item Cite

Jejunostomy Tube Insertion for Enteral Nutrition: Comparison of Outcomes after Laparoscopic versus Radiologic Insertion.

Journal article J Vasc Interv Radiol · July 2020 Featured Publication PURPOSE: To retrospectively compare technical success and major complication rates of laparoscopically versus radiologically inserted jejunostomy tubes. MATERIALS AND METHODS: In this single-institution retrospective study, 115 patients (60 men; mean age, ... Full text Link to item Cite

Arteriovenous Graft Delamination and Dissection as a Cause of Graft Dysfunction.

Journal article J Vasc Interv Radiol · May 2020 Featured Publication Full text Link to item Cite

Treatment of Arm Swelling in Hemodialysis Patients with Ipsilateral Arteriovenous Access and Central Vein Stenosis: Conversion to the Hemodialysis Reliable Outflow Graft versus Stent Deployment.

Journal article J Vasc Interv Radiol · February 2020 Featured Publication PURPOSE: To compare outcomes after conversion of arteriovenous (AV) access to Hemodialysis Reliable Outflow (HeRO) graft vs stent deployment in patients with arm swelling owing to ipsilateral central vein stenosis. MATERIALS AND METHODS: This single-center ... Full text Link to item Cite

Occult Left Common Iliac Vein Compression Increases Postoperative Venous Thromboembolism Risk Following Total Hip Arthroplasty.

Journal article J Arthroplasty · February 2019 Featured Publication BACKGROUND: Left common iliac vein (LCIV) compression by the right or left common iliac artery (RCIA, LCIA) is known to cause venous thromboembolism (VTE), but the extent to which occult LCIV compression synergizes with lower extremity orthopedic surgery i ... Full text Link to item Cite

Evaluation of the Heat Sink Effect After Transarterial Embolization When Performed in Combination with Thermal Ablation of the Liver in a Rabbit Model.

Journal article Cardiovasc Intervent Radiol · November 2018 Featured Publication PURPOSE: To assess the contribution of the heat sink effect when combining thermal ablation with transarterial embolization (TAE). MATERIALS AND METHODS: Radiofrequency ablation (RFA) or microwave ablation (MWA) were performed in the liver of non-tumor bea ... Full text Link to item Cite

The role of external beam radiotherapy in the treatment of hepatocellular cancer.

Journal article Cancer · September 1, 2018 Featured Publication Hepatocellular carcinoma (HCC) is increasing in incidence and mortality. Although the prognosis remains poor, long-term survival has improved from 3% in 1970 to an 18% 5-year survival rate today. This is likely because of the introduction of well tolerated ... Full text Link to item Cite

Minimal Risk of Biliary Tract Complications, Including Hepatic Abscess, After Transarterial Embolization for Hepatocellular Carcinoma Using Concentrated Antibiotics Mixed with Particles.

Journal article Cardiovasc Intervent Radiol · September 2018 Featured Publication PURPOSE: To assess the incidence of biliary complications, cholecystitis, and abscess formation in HCC patients following transarterial embolization (TAE) using particles mixed with concentrated antibiotics. MATERIALS AND METHODS: Retrospective review of H ... Full text Link to item Cite

Progression of Treated versus Untreated Liver Imaging Reporting and Data System Category 4 Masses after Transcatheter Arterial Embolization Therapy.

Journal article J Vasc Interv Radiol · May 2018 Featured Publication PURPOSE: To compare outcomes of treated vs untreated Liver Imaging Reporting and Data System category 4 (LR-4) masses after transcatheter arterial embolization. MATERIALS AND METHODS: In 167 patients undergoing embolization for HCC from January 2005 to Dec ... Full text Link to item Cite

ACR Appropriateness Criteria® Radiologic Management of Uterine Leiomyomas.

Journal article J Am Coll Radiol · May 2018 Featured Publication Uterine fibroids, also known as leiomyomas, are the most common benign tumor in women of reproductive age. When symptomatic, these patients can present with bleeding and/or bulk-related symptoms. Treatment options for symptomatic uterine leiomyomas include ... Full text Link to item Cite

Albumin-bilirubin grade versus MELD score for predicting survival after transjugular intrahepatic portosystemic shunt (TIPS) creation.

Journal article Diagn Interv Imaging · March 2018 Featured Publication OBJECTIVES: The purpose of this study was to compare the albumin-bilirubin (ALBI) grade and model for end-stage liver disease (MELD) scores for predicting survival after transjugular intrahepatic portosystemic shunt (TIPS) creation. MATERIALS AND METHODS: ... Full text Link to item Cite

Locoregional therapies for hepatocellular carcinoma and the new LI-RADS treatment response algorithm.

Journal article Abdom Radiol (NY) · January 2018 Featured Publication Radiologists play a central role in the assessment of patient response to locoregional therapies for hepatocellular carcinoma (HCC). The identification of viable tumor following treatment guides further management and potentially affects transplantation el ... Full text Link to item Cite

Hemorrhage risk with transjugular intrahepatic portosystemic shunt (TIPS) insertion at the main portal vein bifurcation with stent grafts.

Journal article Diagn Interv Imaging · December 2017 Featured Publication PURPOSE: The purpose of this study was to assess the incidence of major hemorrhage after transjugular intrahepatic portosystemic shunt (TIPS) insertion using a stent graft at the main portal vein bifurcation. PATIENTS AND METHODS: TIPS insertion using sten ... Full text Link to item Cite

Pilot Evaluation of Angiogenesis Signaling Factor Response after Transcatheter Arterial Embolization for Hepatocellular Carcinoma.

Journal article Radiology · October 2017 Featured Publication Purpose To identify changes in a broad panel of circulating angiogenesis factors after bland transcatheter arterial embolization (TAE), a purely ischemic treatment for hepatocellular carcinoma (HCC). Materials and Methods This prospective HIPAA-compliant s ... Full text Link to item Cite

Creation of an Extraluminal Arterial Bypass Graft Using a Commercially Available Self-Expanding Stent Graft: Feasibility Study in a Porcine Model.

Journal article Cardiovasc Intervent Radiol · September 2017 Featured Publication PURPOSE: The purpose of this study was to assess the technical feasibility of ultrasound-guided endovascular creation of a percutaneous extraluminal arterial bypass graft without a surgically created arterial anastomosis. MATERIALS AND METHODS: Nine swine ... Full text Link to item Cite

MR Venography of the Central Veins of the Thorax.

Journal article Top Magn Reson Imaging · August 2017 Featured Publication While imaging of the central venous system has traditionally been performed with conventional venography, MR venography (MRV) has emerged as an important modality as techniques and validation studies have evolved over time. While magnetic resonance angiogr ... Full text Link to item Cite

Treatment of central venous in-stent restenosis with repeat stent deployment in hemodialysis patients.

Journal article J Vasc Access · May 15, 2017 Featured Publication PURPOSE: To report patency rates for stent deployment for treatment of in-stent stenosis of the central veins of the chest in hemodialysis patients. MATERIALS AND METHODS: A retrospective analysis was performed on 29 patients who underwent 35 secondary per ... Full text Link to item Cite

Early infection risk with primary versus staged Hemodialysis Reliable Outflow (HeRO) graft implantation.

Journal article J Vasc Surg · January 2017 Featured Publication OBJECTIVE: This study evaluated whether the use of a staged Hemodialysis Reliable Outflow (HeRO; Merit Medical, South Jordan, Utah) implantation strategy incurs increased early infection risk compared with conventional primary HeRO implantation. METHODS: A ... Full text Link to item Cite

Randomized Controlled Trial of Octyl Cyanoacrylate Skin Adhesive versus Subcuticular Suture for Skin Closure after Implantable Venous Port Placement.

Journal article J Vasc Interv Radiol · January 2017 Featured Publication PURPOSE: To compare early outcomes of skin closure with octyl cyanoacrylate skin adhesive versus subcuticular suture closure. MATERIALS AND METHODS: Over a 7-month period, 109 subjects (28 men and 81 women; mean age, 58.6 y) scheduled to undergo single-lum ... Full text Link to item Cite

Clinical implications of acute pelvicaliceal hematoma formation during percutaneous catheter nephrostomy insertion.

Journal article Clin Imaging · 2017 Featured Publication PURPOSE: To determine the clinical implications of acute pelvicaliceal hematoma formation during percutaneous catheter nephrostomy (PCN) insertion. METHODS: Collecting system hematoma burden was retrospectively assessed for 694 PCN insertions in 502 patien ... Full text Link to item Cite

Bariatric Embolization: Pilot Study on the Impact of Gastroprotective Agents and Arterial Distribution on Ulceration Risk and Efficacy in a Porcine Model.

Journal article J Vasc Interv Radiol · December 2016 Featured Publication PURPOSE: To assess whether the number of fundal arteries embolized and use of gastroprotective agents have an impact on ghrelin suppression and gastric ulceration rates. MATERIALS AND METHODS: Twenty-two healthy, growing swine (mean, 38.4 kg; range, 30.3-4 ... Full text Link to item Cite

Percutaneous biliary drainage catheter insertion in patients with extensive hepatic metastatic tumor burden.

Journal article J Gastrointest Oncol · December 2016 Featured Publication BACKGROUND: Patients with metastatic disease of the liver can have hyperbilirubinemia due to a number of reasons, including biliary obstruction. The purpose of this study was to analyze patient outcomes after percutaneous biliary drainage (PBD) catheter in ... Full text Link to item Cite

Application of a Novel CT-Based Iliac Artery Calcification Scoring System for Predicting Renal Transplant Outcomes.

Journal article AJR Am J Roentgenol · February 2016 Featured Publication OBJECTIVE: The objective of our study was to assess whether the degree and distribution of iliac artery calcifications as determined by a CT-based calcium scoring system correlates with outcomes after renal transplant. MATERIALS AND METHODS: A retrospectiv ... Full text Link to item Cite

Effectiveness of Transarterial Embolization of Hepatocellular Carcinoma as a Bridge to Transplantation.

Journal article J Vasc Interv Radiol · January 2016 Featured Publication PURPOSE: To assess the effectiveness of bland transarterial embolization of hepatocellular carcinoma (HCC) as a "bridge" to transplantation. MATERIALS AND METHODS: In this retrospective study, 117 patients with HCC that met Milan criteria underwent bland e ... Full text Link to item Cite

Postintervention Patency Rates and Predictors of Patency after Percutaneous Interventions on Intragraft Stenoses within Failing Prosthetic Arteriovenous Grafts.

Journal article J Vasc Interv Radiol · November 2015 Featured Publication PURPOSE: To determine postintervention patency rates after endovascular interventions on intragraft stenosis within failing prosthetic arteriovenous (AV) grafts, as well as predictors of patency. MATERIALS AND METHODS: Retrospective review of percutaneous ... Full text Link to item Cite

Percutaneous cryoablation of renal masses under CT fluoroscopy: radiation doses to the patient and interventionalist.

Journal article Abdom Imaging · October 2015 Featured Publication PURPOSE: Computed tomographic (CT) fluoroscopy-guided percutaneous cryoablation is an effective therapeutic method used to treat focal renal masses. The purpose of this study is to quantify the radiation dose to the patient and interventional radiologist d ... Full text Link to item Cite

Left renal vein compression as cause for varicocele: prevalence and associated findings on contrast-enhanced CT.

Journal article Abdom Imaging · October 2015 Featured Publication PURPOSE: The purpose of this study is to determine the prevalence of left renal vein compression in patients with varicoceles. METHODS: Abdominal and pelvis contrast-enhanced CT images from 100 male patients with varicoceles (mean age 50.6 years) and 100 m ... Full text Link to item Cite

Comparison of Acute Histologic and Biomechanical Effects of Radiofrequency Ablation and Cryoablation on Periarticular Structures in a Swine Model.

Journal article J Vasc Interv Radiol · August 2015 Featured Publication PURPOSE: To compare the acute effects of radiofrequency (RF) ablation and cryoablation on the structural integrity of nontarget periarticular tissues that may be placed at risk during percutaneous bone ablation. MATERIALS AND METHODS: RF ablation and cryoa ... Full text Link to item Cite

Management of Anticoagulant and Antiplatelet Medications in Adults Undergoing Percutaneous Interventions.

Journal article AJR Am J Roentgenol · August 2015 Featured Publication OBJECTIVE: Many radiologists are unfamiliar with the new antithrombogenic medications and how to modify patient management before nonvascular percutaneous procedures performed in a radiology department. In this article, we review the indications for use, m ... Full text Link to item Cite

Erratum: Haskal ZJ. JVIR editor's awards: 2014 top papers. (Journal of Vascular and Interventional Radiology (2015) 26 (372-373))

Journal article Journal of Vascular and Interventional Radiology · August 1, 2015 Featured Publication Full text Cite

Prevention and management of infectious complications of percutaneous interventions.

Journal article Semin Intervent Radiol · June 2015 Featured Publication Infectious complications following interventional radiology (IR) procedures can cause significant patient morbidity and, potentially, mortality. As the number and breadth of IR procedures grow, it becomes increasingly evident that interventional radiologis ... Full text Link to item Cite

Diagnosis and management of hemorrhagic complications of interventional radiology procedures.

Journal article Semin Intervent Radiol · June 2015 Featured Publication Image-guided interventions have allowed for minimally invasive treatment of many common diseases, obviating the need for open surgery. While percutaneous interventions usually represent a safer approach than traditional surgical alternatives, complications ... Full text Link to item Cite

Transjugular intrahepatic portosystemic shunt complications: prevention and management.

Journal article Semin Intervent Radiol · June 2015 Featured Publication Transjugular intrahepatic portosystemic shunt (TIPS) insertion has been well established as an effective treatment in the management of sequelae of portal hypertension. There are a wide variety of complications that can be encountered, such as hemorrhage, ... Full text Link to item Cite

Management of dysfunctional catheters and tubes inserted by interventional radiology.

Journal article Semin Intervent Radiol · June 2015 Featured Publication Minimally invasive percutaneous interventions are often used for enteral nutrition, biliary and urinary diversion, intra-abdominal fluid collection drainage, and central venous access. In most cases, radiologic and endoscopic placement of catheters and tub ... Full text Link to item Cite

Bariatric embolization of the gastric arteries for the treatment of obesity.

Journal article J Vasc Interv Radiol · May 2015 Featured Publication Obesity is a public health epidemic in the United States that results in significant morbidity, mortality, and cost to the health care system. Despite advancements in therapeutic options for patients receiving bariatric procedures, the number of overweight ... Full text Link to item Cite

Respiratory-gated noncontrast SPACE MR angiography sequence at 3T for evaluation of the central veins of the chest: a feasibility study.

Journal article J Magn Reson Imaging · January 2015 Featured Publication PURPOSE: To evaluate the feasibility of a respiratory-gated noncontrast magnetic resonance angiography (MRA) sequence for imaging the central veins of the chest. MATERIALS AND METHODS: Eleven healthy subjects underwent MRA of the central veins of the chest ... Full text Link to item Cite

Accessory veins in nonmaturing autogenous arteriovenous fistulae: analysis of anatomic features and impact on fistula maturation.

Journal article Semin Dial · 2015 Featured Publication The appropriate management of nonmaturing arteriovenous (AV) fistulae continues to be a controversial issue. While coil embolization of accessory side-branch veins can be performed to encourage maturation of nonmaturing AV fistulae, the true efficacy and o ... Full text Link to item Cite

Effects of model-based iterative reconstruction on image quality for low-dose computed tomographic angiography of the thoracic aorta in a Swine model.

Journal article J Comput Assist Tomogr · 2015 Featured Publication PURPOSE: The aim of the study was to assess the image quality of multi-detector-row computed tomography (CT) angiographic images of the thoracic aorta reconstructed with filtered back projection (FBP), adaptive statistical iterative reconstruction, and mod ... Full text Link to item Cite

Bacteriophage K antimicrobial-lock technique for treatment of Staphylococcus aureus central venous catheter-related infection: a leporine model efficacy analysis.

Journal article J Vasc Interv Radiol · October 2014 Featured Publication PURPOSE: To determine whether a bacteriophage antimicrobial-lock technique can reduce bacterial colonization and biofilm formation on indwelling central venous catheters in a rabbit model. MATERIALS AND METHODS: Cuffed central venous catheters were inserte ... Full text Link to item Cite

T-fastener migration after percutaneous gastropexy for transgastric enteral tube insertion.

Journal article Gut Liver · September 2014 Featured Publication BACKGROUND/AIMS: To determine the prevalence and time-course of t-fastener migration after gastropexy deployment. METHODS: We reviewed our procedural database for all percutaneous gastrostomy and gastrojejunostomy tube insertions performed over a 14-month ... Full text Link to item Cite

Retrospective assessment of the utility of an iron-based agent for contrast-enhanced magnetic resonance venography in patients with endstage renal diseases.

Journal article J Magn Reson Imaging · July 2014 Featured Publication PURPOSE: To compare abdominopelvic and lower extremity venous enhancement in contrast-enhanced magnetic resonance venography (ceMRV), using iron-based ferumoxytol and gadolinium-based gadofosveset. MATERIALS AND METHODS: This was a Health Insurance Portabi ... Full text Link to item Cite

Venous filling defects on portal venous phase CT of the abdomen and pelvis: clinical implications and positive predictive value for diagnosing deep venous thrombosis.

Journal article Abdom Imaging · June 2014 Featured Publication PURPOSE: To determine the prevalence, resulting clinical decisions, and the positive predictive value (PPV) of venous filling defects detected on portal venous phase (PVP) CT. METHODS: Over a 3-year period, 42412 consecutive patients underwent a PVP abdomi ... Full text Link to item Cite

Coil embolization of the splenic artery: impact on splenic volume.

Journal article J Vasc Interv Radiol · June 2014 Featured Publication PURPOSE: To determine the impact of coil embolization of the splenic artery on splenic volume based on computed tomography (CT) imaging. MATERIALS AND METHODS: Splenic artery embolization (SAE) was performed in 148 consecutive patients over an 8-year perio ... Full text Link to item Cite

Vascular artifact mimicking thrombosis on MR imaging using ferumoxytol as a contrast agent in abdominal vascular assessment.

Journal article J Vasc Interv Radiol · June 2014 Featured Publication PURPOSE: To describe an artifact that mimics thrombosis when assessing abdominal vasculature on magnetic resonance (MR) imaging using ferumoxytol in patients with contraindications to gadolinium-based contrast agents and to evaluate factors that may contri ... Full text Link to item Cite

Safety of an intercostal approach for imaging-guided percutaneous drainage of subdiaphragmatic abscesses.

Journal article AJR Am J Roentgenol · June 2014 Featured Publication OBJECTIVE: The objective of our study was to test the hypothesis that an intercostal approach to imaging-guided percutaneous subdiaphragmatic abscess drainage is as safe as a subcostal approach. MATERIALS AND METHODS: A cohort of 258 consecutive patients w ... Full text Link to item Cite

Small renal mass biopsy--how, what and when: report from an international consensus panel.

Journal article BJU Int · June 2014 Featured Publication To discuss the use of renal mass biopsy (RMB) for small renal masses (SRMs), formulate technical aspects, outline potential pitfalls and provide recommendations for the practicing clinician. The meeting was conducted as an informal consensus process and no ... Full text Link to item Cite

Histopathologic and immunohistochemical sequelae of bariatric embolization in a porcine model.

Journal article J Vasc Interv Radiol · March 2014 Featured Publication PURPOSE: To evaluate the histopathologic sequelae of bariatric embolization on the gastric mucosa and to correlate with immunohistochemical evaluation of the gastric fundus, antrum, and duodenum. MATERIALS AND METHODS: This study was performed on 12 swine ... Full text Link to item Cite

Histopathologic and immunohistochemical sequelae of bariatric embolization in a porcine model

Journal article Journal of Vascular and Interventional Radiology · 2014 Featured Publication Cite

Comparison of primary jejunostomy tubes versus gastrojejunostomy tubes for percutaneous enteral nutrition.

Journal article J Vasc Interv Radiol · December 2013 Featured Publication PURPOSE: To evaluate technical success and long-term outcomes of percutaneous primary jejunostomy tubes for postpyloric enteral feeding compared with percutaneous gastrojejunostomy (GJ) tubes. MATERIALS AND METHODS: Over a 25-month interval, 41 consecutive ... Full text Link to item Cite

Bacteriophage K for reduction of Staphylococcus aureusbiofilm on central venous catheter material.

Journal article Bacteriophage · October 1, 2013 Featured Publication The purpose of this project was to determine whether bacteriophage can reduce bacterial colonization and biofilm formation on central venous catheter material. Twenty silicone discs were inoculated for 24 h with broth culture of Methicillin sensitive staph ... Full text Link to item Cite

Radiation exposure associated with dedicated renal mass computed tomography protocol: impact of patient characteristics.

Journal article J Endourol · September 2013 Featured Publication BACKGROUND AND PURPOSE: Renal mass protocol CT (RMP-CT) using multiphase abdomen and pelvis CT imaging is the mainstay for diagnosis, characterization, and follow-up for renal masses; however, it is associated with ionizing radiation to the patient. We sou ... Full text Link to item Cite

Tunneled peritoneal drainage catheter placement for refractory ascites: single-center experience in 188 patients.

Journal article J Vasc Interv Radiol · September 2013 Featured Publication PURPOSE: To assess the success and safety of tunneled peritoneal drainage catheters for the management of ascites refractory to medical management. MATERIALS AND METHODS: A total of 188 consecutive patients (83 male, 105 female; average age 59 y) with refr ... Full text Link to item Cite

Tunneled internal jugular hemodialysis catheters: impact of laterality and tip position on catheter dysfunction and infection rates.

Journal article J Vasc Interv Radiol · September 2013 Featured Publication PURPOSE: To determine rates of dysfunction and infection for tunneled internal jugular vein hemodialysis catheters based on laterality of insertion and catheter tip position. MATERIALS AND METHODS: Retrospective review of a procedural database for tunneled ... Full text Link to item Cite

Abdominopelvic and lower extremity deep venous thrombosis: evaluation with contrast-enhanced MR venography with a blood-pool agent.

Journal article AJR Am J Roentgenol · July 2013 Featured Publication OBJECTIVE: The purpose of this article is to evaluate contrast-enhanced (CE) MR venography (MRV) with a blood-pool agent for detection of abdominopelvic and lower extremity deep venous thrombosis (DVT) compared with a conventional unenhanced gradient-recal ... Full text Link to item Cite

Covered transjugular intrahepatic portosystemic shunts: accuracy of ultrasound in detecting shunt malfunction.

Journal article AJR Am J Roentgenol · April 2013 Featured Publication OBJECTIVE: The purpose of this study was to determine the accuracy of ultrasound for detecting transjugular intrahepatic portosystemic shunt (TIPS) malfunction in covered stents in comparison with bare metal stents. MATERIALS AND METHODS: During a 6-year p ... Full text Link to item Cite

Percutaneous interventions on the hemodialysis reliable outflow vascular access device.

Journal article J Vasc Interv Radiol · April 2013 Featured Publication PURPOSE: To determine the outcomes of percutaneous interventions for prolonging the patency of the Hemodialysis Reliable Outflow (HeRO) device. MATERIALS AND METHODS: Between January 2007 and August 2011, 73 percutaneous interventions were performed on 26 ... Full text Link to item Cite

Bariatric embolization for suppression of the hunger hormone ghrelin in a porcine model.

Journal article Radiology · February 2013 Featured Publication PURPOSE: To prospectively test in a porcine model the hypothesis that bariatric embolization with commercially available calibrated microspheres can result in substantial suppression of systemic ghrelin levels and affect weight gain over an 8-week period. ... Full text Link to item Cite

Impact of phase of respiration on central venous catheter tip position.

Journal article J Vasc Access · 2013 Featured Publication PURPOSE: To determine the impact of the phase of respiration on CVC tip position using cross-sectional imaging. METHODS: We retrospectively analyzed the CT scans of 24 consecutive patients (eight men and 16 women, mean age 56.3 years, range 18-79) who unde ... Full text Link to item Cite

Incidental detection of nutcracker phenomenon on multidetector CT in an asymptomatic population: prevalence and associated findings.

Journal article J Comput Assist Tomogr · 2013 Featured Publication OBJECTIVE: To determine the prevalence of nutcracker phenomenon (left renal vein compression by the superior mesenteric artery) and secondary anatomic findings using multidetector computed tomographic (CT) angiography in an asymptomatic population. METHODS ... Full text Link to item Cite

Gadofosveset-enhanced magnetic resonance angiography of the thoracic vasculature in the equilibrium phase: feasibility and impact of dose.

Journal article J Comput Assist Tomogr · 2013 Featured Publication OBJECTIVE: The objectives of this study were to evaluate the feasibility of gadofosveset-enhanced magnetic resonance angiography (MRA) of the thoracic vasculature in the equilibrium phase and to determine the impact of gadofosveset dose on imaging quality. ... Full text Link to item Cite

Early outcomes of empiric embolization of tumor-related gastrointestinal hemorrhage in patients with advanced malignancy.

Journal article J Vasc Interv Radiol · November 2012 Featured Publication PURPOSE: To report short-term results of empiric transcatheter embolization for patients with advanced malignancy and gastrointestinal (GI) hemorrhage directly from a tumor invading the GI tract wall. MATERIALS AND METHODS: Between 2005 and 2011, 37 mesent ... Full text Link to item Cite

Assessment of vascular contrast and depiction of stenoses in abdominopelvic and lower extremity vasculature: comparison of dual-energy MDCT with digital subtraction angiography.

Journal article Acad Radiol · September 2012 Featured Publication RATIONALE AND OBJECTIVES: To assess whether dual-energy computed tomography (DECT) multidetector computed tomography (MDCT) angiography improves vascular contrast beyond MDCT angiography and digital subtraction angiography (DSA) while preserving the abilit ... Full text Link to item Cite

Outcomes of prosthetic hemodialysis grafts after deployment of bare metal versus covered stents at the venous anastomosis.

Journal article Cardiovasc Intervent Radiol · August 2012 Featured Publication PURPOSE: To compare postintervention patency rates after deployment of bare metal versus covered stents across the venous anastomosis of prosthetic arteriovenous (AV) grafts. METHODS: Review of our procedural database over a 6 year period revealed 377 proc ... Full text Link to item Cite

A 6-year experience treating vascular malformations with foam sclerotherapy.

Journal article Perspect Vasc Surg Endovasc Ther · June 2012 Featured Publication In this study, the authors present an analysis of the outcomes of 105 low-flow vascular malformation patients treated over a 6-year period and report specific lesion characteristics that correlate with those vascular malformations that will benefit from so ... Full text Link to item Cite

Contrast enhancement on computed tomography after renal cryoablation: an evidence of treatment failure?

Journal article J Endourol · April 2012 Featured Publication BACKGROUND AND PURPOSE: Renal cryoablation has gained popularity as a treatment option for localized renal masses. Treatment success is typically defined by the absence of contrast enhancement on follow-up imaging. We investigate the evolution of lesions t ... Full text Link to item Cite

Hepatic venous pressure measurements: comparison of end-hole and balloon catheter methods.

Journal article J Vasc Interv Radiol · February 2012 Featured Publication PURPOSE: To determine the difference in hepatic venous pressures measured with the use of an end-hole diagnostic catheter versus a balloon catheter. MATERIALS AND METHODS: A total of 92 patients underwent transjugular hepatic venous pressure measurements w ... Full text Link to item Cite

Analysis of infection risk following covered stent exclusion of pseudoaneurysms in prosthetic arteriovenous hemodialysis access grafts.

Journal article J Vasc Interv Radiol · January 2012 Featured Publication PURPOSE: To determine whether exclusion of pseudoaneurysms with the use of a covered stent in prosthetic arteriovenous (AV) hemodialysis access grafts impacts the incidence of eventual AV graft infection. MATERIALS AND METHODS: Review of an interventional ... Full text Link to item Cite

Percutaneous cryoablation of renal lesions with radiographic ice ball involvement of the renal sinus: analysis of hemorrhagic and collecting system complications.

Journal article AJR Am J Roentgenol · April 2011 Featured Publication OBJECTIVE: The purpose of this study was to determine the incidence of collecting system and hemorrhagic complications resulting from CT-guided percutaneous cryoablation of renal tumors in which the radiographic ice ball abuts or involves the renal sinus. ... Full text Link to item Cite

CONTRAST ENHANCEMENT AFTER RENAL CRYOABLATION: AN EVIDENCE OF TREATMENT FAILURE?

Conference JOURNAL OF ENDOUROLOGY · September 1, 2010 Featured Publication Link to item Cite

Complications of laparoscopic and percutaneous renal cryoablation in a single tertiary referral center.

Journal article Eur Urol · July 2010 Featured Publication BACKGROUND: Laparoscopic cryoablation (LCA) and percutaneous cryoablation (PCA) of small renal masses have gained popularity, but only limited data exist on the complication rates. OBJECTIVES: In this study, we report on postoperative complications associa ... Full text Link to item Cite

Gastrostomy-to-gastrojejunostomy tube conversion: impact of the method of original gastrostomy tube placement.

Journal article J Vasc Interv Radiol · July 2010 Featured Publication PURPOSE: To determine the outcome of gastrostomy tube-to-gastrojejunostomy tube conversion on the basis of the method of original gastrostomy tube placement. MATERIALS AND METHODS: One hundred twenty-four patients (age range, 13-87 years; 72 male and 52 fe ... Full text Link to item Cite

Provocative mesenteric angiography for lower gastrointestinal hemorrhage: results from a single-institution study.

Journal article J Vasc Interv Radiol · April 2010 Featured Publication PURPOSE: To determine the diagnostic capability, complication rate, and potential predictors of success for provocative mesenteric angiography in patients with obscure and recurrent lower gastrointestinal (GI) hemorrhage. MATERIALS AND METHODS: Thirty-four ... Full text Link to item Cite

Time-resolved MR angiography as a useful sequence for assessment of ovarian vein reflux.

Journal article AJR Am J Roentgenol · November 2009 Featured Publication OBJECTIVE: The purpose of this retrospective study was to assess the imaging characteristics of ovarian vein reflux using time-resolved MR angiography (TR-MRA). One hundred consecutive female patients underwent TR-MRA of the pelvis to evaluate suspected or ... Full text Link to item Cite

Time-resolved MR angiography of the central veins of the chest.

Journal article AJR Am J Roentgenol · November 2008 Featured Publication OBJECTIVE: The purpose of our study was to show the usefulness and limitations of contrast-enhanced time-resolved MR angiography (MRA) for imaging the central veins of the chest. CONCLUSION: Time-resolved MRA is highly sensitive for the detection of abnorm ... Full text Link to item Cite

Central veins of the chest: evaluation with time-resolved MR angiography.

Journal article Radiology · May 2008 Featured Publication PURPOSE: To retrospectively assess the diagnostic performance of time-resolved magnetic resonance (MR) angiography in the detection of stenoses and occlusions in the central veins of the chest, with angiographic and surgical findings and consensus readings ... Full text Link to item Cite

Qa-1, a nonclassical MHC molecule with immunomodulatory functions, is ubiquitously expressed in the immune-privileged anterior chamber of the eye.

Journal article Ocul Immunol Inflamm · 2005 Featured Publication PURPOSE: To determine whether the MHC class Ib gene, Qa-1, is expressed in the tissues that surround the immune-privileged anterior chamber (AC) of the murine eye. METHODS: Transcription of Qa-1 mRNA in BALB/c ocular tissues was analyzed by reverse transcr ... Full text Link to item Cite

Evaluation of an antimicrobial-impregnated continuous ambulatory peritoneal dialysis catheter for infection control in rats.

Journal article Am J Kidney Dis · January 2002 Featured Publication Infection is the most serious complication arising in long-term continuous ambulatory peritoneal dialysis (CAPD), specifically peritonitis and exit-site infection. The initial weeks after implantation is the crucial period during which bacterial colonizati ... Full text Link to item Cite

Molecular analysis of HLA-B35 alleles and their relationship to HLA-B15 alleles.

Journal article Tissue Antigens · April 1997 Featured Publication The HLA-B35 serotype is one of the largest allelic groups of HLA class I molecules and includes four isotypes. Of the four, the B35 variant isoform is relatively rare and is the most acidic form. DNA sequencing of the rare isoforms revealed three alleles, ... Full text Link to item Cite