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Results for "pelvic nodes": 12 found

A Comparison of the Impact to Mean Doses to Organs at Risk of Small Versus Large Spot Sizes in Pelvic Proton Therapy

Authors: Jamie s Baker, Sam Beddar, Mahsa Dehghanpour, Ariel MT Hoang, Emma Holliday, Rachael M. Martin Paulpeter, Joshua S. Niedzielski, Luis Augusto Perles, Josie S Ruzek, Gabriel O. Sawakuchi

Affiliation: MD Anderson Cancer Center, The University of Texas MD Anderson Cancer Center, UT MD Anderson Cancer Center, niversity of Texas MD Anderson Cancer Center School of Health Professions, Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, University of Texas MD Anderson Cancer Center School of Health Professions

Abstract Preview: Purpose: This study aims to evaluate the dosimetric impact on organs at risk (OAR) of small versus large spot sizes when treating pelvic cancer patients with pencil beam scanning (PBS) proton therapy....

A Qualitative Evaluation of the Prostate Patients Hscbct Images and Limbus Contours

Authors: Doris Dimitriadis/Dimitriadou, M. Saiful Huq, Ronald John Lalonde, Fang Li, Noor Mail, Adam Olson

Affiliation: UPMC Hillman Cancer Center, UPMC Hillman Cancer Center and University of Pittsburgh School of Medicine, UPMC

Abstract Preview: Purpose: The objective of this study was to qualitatively evaluate Prostate Hypersight Cone-Beam CT (HSCBCT) images and assess its capability for Limbus auto-contouring. The qualitative evaluation and...

Bridging the Gap of Radiotherapy Planning Quality between a High-Income Countrie to a Middle-Income Country By the Dosimetric Validation of a KBP Model Vs Junior, Senior Dosimetrists and MCO Planning

Authors: Eduardo Florian, Hiram Gay, Geoffrey D. Hugo, Otto Hurtarte, Milton Ixquiac, Erick Orlando Montenegro, Franky Eduardo Reyes, Francisco Javier Reynoso, Edgar Aparicio Ruiz, Baozhou Sun, Jacaranda Van Rheenen, Kevin Vega, Angel Velarde, Vicky de Falla

Affiliation: WashU Medicine, Liga Nacional Contra el Cancer, Liga Nacional Contra el Cancer/INCAN, Liga Nacional Contra el Cancer / INCAN, Liga Nacional Contra el Cancer and Universidad de San Carlos de Guatemala, Washington Univ. in St. Louis, Liga Nacional Contra el Cáncer / INCAN, Washington University in St. Louis, Varian, Baylor College of Medicine

Abstract Preview: Purpose:
IMRT has become the standard of care in high-income countries (HICs) due to reduced toxicity and improved treatment outcomes.
The purpose of this work is validating the KBP model shared...

Dosimetric Analysis of Plans Using X-Ray and X-γ-Ray Combination Strategy for Advanced Cervical Cancer Patients with Pelvic Lymph Node Metastasis

Authors: Yi Li

Affiliation: Department of Radiation Oncology, the First Affiliated Hospital of Xi'an Jiaotong University

Abstract Preview: Purpose: Advances in radiotherapy technology are crucial for improving cervical cancer (CC) treatment. This study explores a novel X-ray and γ-ray dual-modality radiation (TaiChiB) system, comparing i...

Dosimetric Evaluation of a Helical Tomotherapy to L-Shaped Linac Plan Conversion Workflow

Authors: Megan E. Daly, Ryan D. Hernandez, Abriel J. Horak, Soo Kyoung Kim, Peter C. Park, Dwaine O. Spence, Payton H. Stone, Cari L. Wright

Affiliation: UC Davis Cancer Center

Abstract Preview: Purpose: To evaluate a fallback planning workflow used for cross-modality treatment planning and delivery between helical Tomotherapy and volumetric modulated arc therapy (VMAT) using conventional L-s...

Feasibility of Efficient Offline Adaptive Replanning with Hypersight High-Performance Cone-Beam CT on Truebeam for Pelvis RT

Authors: Jochen Cammin, Shifeng Chen, Arun Gopal, Kai Huang, Jason K Molitoris, Amit Sawant, Kai Wang

Affiliation: University of Maryland, Department of Radiation Oncology, University of Maryland School of Medicine, Maryland University Baltimore, Department of Radiation Oncology, University of Maryland Medical Center

Abstract Preview: Purpose: The HyperSight CBCT optional feature on Varian TrueBeam linacs offers a larger field-of-view, improved Hounsfield units (HU) accuracy, and overall improved image quality, including metal arti...

Inter-Patient Adaptive Radiotherapy (IPART): A CT Simulation and Planning Free Approach Enabling Immediate Treatment Access for Patients.

Authors: Bin Cai, Andrew R. Godley, Brian A. Hrycushko, Heejung Kim, Mu-han Lin, David D.M. Parsons, Justin D. Visak, Da Wang, Tingliang Zhuang

Affiliation: Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, TX, UT Southwestern Medical Center, University of Texas Southwestern Medical Center, Medical Artificial Intelligence and Automation (MAIA) Laboratory, Department of Radiation Oncology, UT Southwestern Medical Center, Department of Radiation Oncology, UT Southwestern Medical Center

Abstract Preview: Purpose: The standard radiation therapy workflow requires CT-simulation and planning, whether for initial treatments or re-planning due to significant anatomical changes. IPART instead uses one patien...

Machine Learning Knowledge Based Planning Model for Hypo Fractionated Prostate/Prostate Lymph Nodes Treatments

Authors: Nina Burbure, Tawfik G. Giaddui, Shidong Li, Curtis Miyamoto, Jeremy Price, Bin Wang

Affiliation: FCCC at Temple University Hospital

Abstract Preview: Purpose: To evaluate the performance of KBP models for hypo-fractionated prostate and pelvic lymph nodes (LN) VMAT plans.
Methods: A KBP model (TUH KBP) was developed in Eclipse treatment planning ...

Patient-Specific Quality Assurance in SBRT Treatments Using 3D Polymer Gel Dosimetry

Authors: Esteban Arzaga-Barajas, Paola Jazmin Guadarrama Huerta, Jose Alejandro Jimenez, Guerda Massillon-JL, Maria Adela Poitevin-Chacón, Alejandro Rodriguez-Laguna

Affiliation: UNAM, Medica Sur

Abstract Preview: Purpose: To perform patient-specific quality assurance (PSQA) tests for four SBRT treatments of patients diagnosed with vertebral, ilium, pelvic lymph node and lung tumors.
Methods: MAGIC gel consi...

Predicting Elective Pelvic Nodal Volumes with Deep Learning: A Tool to Facilitate Peer Review

Authors: Brian M. Anderson, Shiva K. Das, Meagan Foster, Anirudh Karunaker, Lawrence B. Marks, Lukasz Mazur, Michael Repka

Affiliation: UNC Chapel HIll, University of North Carolina at Chapel Hill, UNC School of Medicine, University of North Carolina

Abstract Preview: Purpose: Development of a peer review segmentation check system to identify deviations in physician contours of standard risk pelvic lymph nodes in patients receiving radiation therapy for prostate an...

The Development of Large Field MR Guided Radiotherapy for Pelvic Lymph Node SBRT and Its Dosimetry Improvement

Authors: David Byun, Ting Chen, Paulina E. Galavis, Allison McCarthy, Hesheng Wang, Michael J Zelefsky

Affiliation: NYU Langone Health

Abstract Preview: Purpose: To summarize a MR guided adaptive workflow developed for pelvic lymph nodes (PLN) stereotactic radiotherapy using large field size on Elekta Unity© MR Linac system, and to quantitatively anal...

Utilizing Bladder Ultrasound to Estimate on-Table Bladder Volume in Prostate Cancer SBRT: Impact on Treatment Setup Consistency and Dosimetric Outcomes

Authors: Minsong Cao, Amar Kishan, Dylan P. O'Connell, Jonathan Pham, Michael Steinberg, Luca F Valle, Michael Xiang

Affiliation: Department of Radiation Oncology, University of California, Los Angeles

Abstract Preview: Purpose: To evaluate bladder ultrasound as a surrogate for estimating on-table bladder volume in prostate cancer patients undergoing stereotactic body radiation therapy (SBRT). The study aimed to asse...