Scholars@Duke
Diandra Norelle Ayala-Peacock

Diandra Norelle Ayala-Peacock

Associate Professor of Radiation Oncology
Radiation Oncology
diandra.ayalapeacock@duke.edu
Radiation Oncology, Box 3085, Durham, NC 27710
Radiation Oncology, P O Box 3085, Durham, NC 27710

Selected Publications

A novel multi-modality imaging phantom for validating interstitial needle guidance for high dose rate gynecological brachytherapy.

Journal Article J Appl Clin Med Phys · October 2023 PURPOSE: To design, manufacture, and validate a female pelvic phantom for multi-modality imaging (CT, MRI, US) to benchmark a commercial needle tracking system with application in HDR gynecological (GYN) interstitial procedures. MATERIALS AND METHODS: A GY ... Full text Open Access Link to item Cite

What is appropriate target delineation for MRI-based brachytherapy for medically inoperable endometrial cancer?

Journal Article Brachytherapy · 2023 PURPOSE: For medically inoperable endometrial cancer (MIEC), the volumetric target of image-guided brachytherapy (IGBT) techniques is not well established. We propose a high-risk CTV (HRCTV) concept and report associated rates of local control and toxicity ... Full text Link to item Cite

Effect of COVID-19 on Gynecologic Oncology Care: A Survey of Practicing Gynecologic Radiation Oncologists in the United States.

Journal Article Adv Radiat Oncol · 2023 PURPOSE: The COVID-19 pandemic has placed demands and limitations on the delivery of health care. We sought to assess the effect of COVID-19 on the delivery of gynecologic oncologic care from the perspective of practicing radiation oncologists in the Unite ... Full text Open Access Link to item Cite

Real -Time Precision Needle Tracking for Gynecological Interstitial Brachytherapy: A Phantom Feasibility Study

Conference INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS · 2023 Cite

Initial analysis of the dosimetric benefit and clinical resource cost of CBCT-based online adaptive radiotherapy for patients with cancers of the cervix or rectum.

Journal Article J Appl Clin Med Phys · October 2021 PURPOSE: This provides a benchmark of dosimetric benefit and clinical cost of cone-beam CT-based online adaptive radiotherapy (ART) technology for cervical and rectal cancer patients. METHODS: An emulator of a CBCT-based online ART system was used to simul ... Full text Link to item Cite

Effect at One Year of Adjuvant Trastuzumab for HER2+ Breast Cancer Combined with Radiation or an Anthracycline on Left Ventricular Ejection Fraction.

Journal Article Am J Cardiol · June 15, 2020 To determine the impact of radiation therapy (XRT) in addition to trastuzumab (TZB) adjuvant chemotherapy for HER2+ breast cancer on left ventricular systolic function, we assessed demographics, oncologic treatment history including XRT exposure, and seria ... Full text Open Access Link to item Cite

Classification for long-term survival in oligometastatic patients treated with ablative radiotherapy: A multi-institutional pooled analysis.

Journal Article PLoS One · 2018 BACKGROUND: Radiotherapy is increasingly used to treat oligometastatic patients. We sought to identify prognostic criteria in oligometastatic patients undergoing definitive hypofractionated image-guided radiotherapy (HIGRT). METHODS: Exclusively extracrani ... Full text Link to item Cite

Multi-institutional Nomogram Predicting Survival Free From Salvage Whole-Brain Radiation After Radiosurgery for Brain Metastases

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

Reassessment of the Role of Enteral Tube Feedings for Patients with Esophageal Cancer

Journal Article The American Surgeon™ · August 2014 Nutrition is important for patients with esophageal cancer because dysphagia can be exacerbated by chemoradiotherapy. Some centers suggest routine enteral tube placement (TF) to facilitate nutrition. This investigation was to evaluate the use of T ... Full text Cite

Clinical and economic outcomes of patients with brain metastases based on symptoms: An argument for routine brain screening of those treated with upfront radiosurgery

Journal Article Cancer · February 2014 BACKGROUNDInsurers have started to deny reimbursement for routine brain surveillance with magnetic resonance imaging (MRI) after stereotactic radiosurgery (SRS) for brain metastases in favor of symptom‐prompted im ... Full text Cite

Impact of Radiosurgical Management of Geriatric Patients With Brain Metastases: Clinical and Quality of Life Outcomes

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

A Phase I Dose Escalation Study of Hypofractionated IMRT Field-in-Field Boost for Newly Diagnosed Glioblastoma Multiforme

Journal Article International Journal of Radiation Oncology*Biology*Physics · February 2012 Full text Cite