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Christopher Ryan Kelsey

Professor of Radiation Oncology
Radiation Oncology
Radiation Oncology, Box 3085, Durham, NC 27710
30 Duke Medicine Circle, Room 05125A, Durham, NC 27710

Scholarly Works - Conferences


Consensus Organ at Risk (OAR) Constraints for Radiotherapy (RT) for Hematologic Malignancies for NCTN Trials

Conference INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS · September 1, 2025 Link to item Cite

Radiate equity: the inclusion of radiation oncology and other specialties in lymphoma collaborative groups.

Conference Lancet Haematol · July 2025 There has been a notable decrease in the use of radiation in lymphoma clinical practice and research in recent years. The NRG Hematologic Malignancies Working Group aimed to assess the inclusion of radiation oncology alongside haematology and oncology, pat ... Full text Link to item Cite

Impact of Myc-Altered Pathology on Radiation Therapy Efficacy Among Patients With Relapsed/Refractory Large-B Cell Lymphoma: A Collaborative Study by ILROG

Conference International Journal of Radiation Oncology Biology Physics · April 1, 2025 Purpose: The presence of MYC and BCL2 translocations (ie, double-hit lymphoma, DHL) in large B-cell lymphoma (LBCL) is associated with reduced chemosensitivity, but less is known on its impact on radiotherapy (RT) efficacy. Methods and Materials: Patients ... Full text Cite

Long-Term Update of a Phase 2 Study of Dose-Reduced Consolidation Radiation Therapy in Diffuse Large B-Cell Lymphoma

Conference INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS · October 1, 2024 Link to item Cite

Long-Term Toxicity after Total Body Irradiation-Based Conditioning Regimens for Allogeneic Stem Cell Transplantation

Conference INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS · October 1, 2023 Link to item Cite

Prospective Phase I/II Study of Radiation and Chemotherapy With Ipilimumab Followed by Nivolumab for Patients With Stage III Unresectable NSCLC.

Conference International journal of radiation oncology, biology, physics · November 2021 Purpose/objective(s)We hypothesized that the addition of concurrent ipilimumab (IPI) with chemoradiotherapy followed by consolidative nivolumab (NIVO) would be safe and tolerable for patients with unresectable stage III non-small cell lung cancer ... Full text Cite

Interpreting Post-SBRT Lung Imaging: A Comparison of Radiology and Radiation Oncology Impressions.

Conference International journal of radiation oncology, biology, physics · November 2021 Purpose/objective(s)Stereotactic body radiation therapy (SBRT) is an established treatment option for stage I non-small cell lung cancer. SBRT often causes acute inflammatory changes in the lung as well as chronic fibrosis. These radiologic findin ... Full text Cite

GRECO-1: Phase 1/2 Study of Stereotactic Body Radiation Therapy (SBRT) With or Without GC4711 for Early Stage, Centrally Located or Large Non-Small Cell Lung Cancer (NSCLC).

Conference International journal of radiation oncology, biology, physics · November 2021 Purpose/objective(s)The number of patients diagnosed with early-stage NSCLC has been increasing with screening programs and more frequent thoracic imaging. Many patients are not ideal surgical candidates and SBRT offers an effective alternative. S ... Full text Cite

Primary Mediastinal (Thymic) Large B-cell Lymphoma: The Working Diagnosis vs WHO Classification Criteria

Conference INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS · November 1, 2020 Link to item Cite

Effective pain control with very low dose palliative radiotherapy for multiple myeloma patients with painful osseous lesions

Conference INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS · November 1, 2020 Link to item Cite

Identification of Radiomic Biomarkers for Patients with Locally Advanced Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · September 2019 Full text Cite

Analysis of Minimum GTV/ITV to 100 Gy BED Isodose Distance as a Risk Factor for Local Failure after SBRT for NSCLC

Conference International Journal of Radiation Oncology*Biology*Physics · September 2019 Full text Cite

Analysis of Dosimetric and Clinical Risk Factors Predicting Chest Wall Toxicity after SBRT for NSCLC

Conference International Journal of Radiation Oncology*Biology*Physics · September 2019 Full text Cite

Commissioning and Clinical Implementation of a Laying Down Technique for Total Skin Irradiation

Conference International Journal of Radiation Oncology*Biology*Physics · November 2018 Full text Cite

Patterns of Failure with SBRT Versus Sublobar Resection for Stage I NSCLC

Conference International Journal of Radiation Oncology*Biology*Physics · November 2018 Full text Cite

Are Higher Doses of Consolidation Radiation Therapy Necessary for Diffuse Large B-Cell Lymphoma Eith Osseous Involvement

Conference International Journal of Radiation Oncology*Biology*Physics · November 2018 Full text Cite

Text messaging and activity tracker motivation program to increase physical activity in cancer survivors.

Conference Journal of Clinical Oncology · March 1, 2018 92 Background: Cancer survivors have high rates of sedentary behavior leading to obesity and cardiovascular disease. Physical activity improves quality of life (QOL) and reduces morbidity and mortality. However, cancer survivors ... Full text Cite

Sensitivity of Radiomic Features to Acquisition Noise and Respiratory Motion

Conference International Journal of Radiation Oncology*Biology*Physics · October 2017 Full text Cite

Phase 2 Study of Dose-Reduced Consolidation Radiation Therapy in Patients With Diffuse Large B-cell Lymphoma

Conference International Journal of Radiation Oncology*Biology*Physics · October 2017 Full text Cite

Impact of Esophageal Motion on Dosimetry and Toxicity for Lung Radiation Therapy

Conference International Journal of Radiation Oncology*Biology*Physics · October 2017 Full text Cite

SBRT Versus Sublobar Resection for Stage I NSCLC

Conference International Journal of Radiation Oncology*Biology*Physics · October 2017 Full text Cite

Dynamic Changes in Cell-Free DNA During Chemoradiation for Non–small Cell Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · October 2017 Full text Cite

Myeloablative conditioning with total body irradiation for AML: Balancing survival and pulmonary toxicity.

Conference Adv Radiat Oncol · 2016 PURPOSE: The purpose of this study was to compare leukemia-free survival (LFS) and other clinical outcomes in patients with acute myelogenous leukemia who underwent a myeloablative allogeneic stem cell transplant with and without total body irradiation (TB ... Full text Open Access Link to item Cite

Phase 1 Dose-Escalation Study of Accelerated Fractionation and Concurrent Chemotherapy for Locally Advanced Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · November 2015 Full text Cite

A Prospective Study of Adaptive Planning Utilizing Interim PET-CT for Locally Advanced Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · November 2015 Full text Cite

Predictive Models for Assuring Quality and Consistency of Lung IMRT Plans Across Institutions in Cooperative Group Trials

Conference International Journal of Radiation Oncology*Biology*Physics · September 2014 Full text Cite

Tobacco Use and Secondary Lung Malignancies After Surgery for Non-Small Cell Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · September 2014 Full text Cite

Low-Dose Consolidation Radiation Therapy for Early-Stage Unfavorable Hodgkin Lymphoma

Conference International Journal of Radiation Oncology*Biology*Physics · September 2014 Full text Cite

Automatic Determination of Beam Angles in Lung IMRT Planning

Conference International Journal of Radiation Oncology*Biology*Physics · September 2014 Full text Cite

Early Results of a Randomized Trial to Identify an Optimal PTV in Stereotactic Radiosurgery of Brain Metastases

Conference International Journal of Radiation Oncology*Biology*Physics · October 2013 Full text Cite

MO-F-WAB-11: Investigation of CBCT-Based Patient Positioning Accuracy in Lung SBRT: Correlation with Breathing Irregularity.

Conference Med Phys · June 2013 PURPOSE: To evaluate breathing irregularity induced error in CBCT-based patient positioning in lung SBRT and correlate the error with a measure of breathing variability. METHODS: The 4D extended cardiac-torso (XCAT) digital phantom was used to generate 10- ... Full text Link to item Cite

SU‐E‐T‐474: Adaptive Stereotactic Body Radiation Therapy (SBRT) Planning for Lung Cancer: Can We Predict Who Will Benefit?

Conference Medical Physics · January 1, 2013 Purpose: We have previously shown that adaptive lung SBRT planning can mitigate dose to adjacent organs at risk (OARs). The aim of this study is to investigate factors that affect dosimetric effectiveness of adaptive lung SBRT, so that we may predict which ... Full text Cite

The Impact of Anatomical Changes During the Course of Intensity Modulated Radiation Therapy (IMRT) for Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · November 2012 Full text Cite

TH‐A‐BRA‐11: Treatment‐Induced Dosimetric/Volume Changes During the Course of Radiotherapy for Lung Cancer

Conference Medical Physics · January 1, 2012 Purpose: To investigate the necessity for adaptive radiation therapy (RT) in lung cancer IMRT treatments by quantifying tumor changes during radiotherapy and the associated impact on target, lung and esophagus. Methods: As part of an IRB‐approved lung dose ... Full text Cite

PERSISTENT N2 DISEASE AFTER NEOADJUVANT CHEMOTHERAPY-NOW WHAT?

Conference JOURNAL OF THORACIC ONCOLOGY · June 1, 2011 Link to item Cite

MO‐D‐BRB‐03: Investigation of the Reproducibility of Probability Distribution function (PDF) of Tumor Motion in Lung Stereotactic Body Radiation Therapy (SBRT)

Conference Medical Physics · January 1, 2011 Purpose: To investigate the reproducibility of probability distribution function (PDF) of lung tumor motion using cine‐MV images from lung SBRT treatments. Findings of the study will provide valuable information for probability‐based treatment planning. Me ... Full text Cite

Stereotactic Body Radiotherapy (SBRT) in Patients Previously Treated with External Beam Radiation Therapy

Conference International Journal of Radiation Oncology*Biology*Physics · November 2010 Full text Cite

The Effect of Increasing Experience with Intensity Modulated Radiation Therapy for Resected Malignant Pleural Mesothelioma

Conference International Journal of Radiation Oncology*Biology*Physics · November 2010 Full text Cite

Impact of Consolidative Radiation Therapy in Stage III-IV Diffuse Large B-cell Lymphoma

Conference International Journal of Radiation Oncology*Biology*Physics · November 2010 Full text Cite

Positive PET Prior to Consolidative Radiation Therapy Increases Risk of In-field Failure in Diffuse Large B-cell Lymphoma

Conference International Journal of Radiation Oncology*Biology*Physics · November 2009 Full text Cite

The Association between RT-induced Changes in Lung Tissue Density and Global Lung Function

Conference International Journal of Radiation Oncology*Biology*Physics · September 2008 Full text Cite

Stage and Treatment Migration in Patients With Stage III Non-Small Cell Lung Cancer

Conference International Journal of Radiation Oncology*Biology*Physics · November 2007 Full text Cite

Assessing Neurotoxicity From Radiosurgery: Results From a Prospective Study Using Magnetic Resonance Spectroscopy

Conference International Journal of Radiation Oncology*Biology*Physics · November 2007 Full text Cite

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Conference International Journal of Radiation Oncology*Biology*Physics · November 2006 Full text Cite

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Conference International Journal of Radiation Oncology*Biology*Physics · November 2006 Full text Cite

Radiation-induced narrowing of the tracheobronchial tree: An in-depth 3D analysis

Conference International Journal of Radiation OncologyBiologyPhysics · September 2004 Full text Cite