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Results for "absorbed fractions": 9 found

A Novel Integrated Framework for Rapid Automatic Calculation of Organ Absorbed Dose from kV-CBCT Imaging during Radiotherapy

Authors: Marios Myronakis, Kyriaki Theodorou

Affiliation: Medical Physics Department, Medical School, University of Thessaly

Abstract Preview: Purpose: The development of an integrated application framework for rapid, seamless, and automated calculation of absorbed organ dose for individual patients undergoing kV CBCT imaging over the course...

A Refined Model of Reference Mesh-Type Female Breast Model Vasculature and Glandular Structures for Internal Circulating Lymphocyte Dosimetry

Authors: Wesley E. Bolch, Carlos G. Colon-Ortiz, Robert Joseph Dawson, Lazaro Fuentes Alfonso, Shreya P. Pathak, Julia D. Withrow

Affiliation: University of Florida

Abstract Preview: Purpose: To develop tetrahedral mesh-based tissue models within the breasts of the International Commission on Radiological Protection (ICRP) adult female mesh-type reference computational phantom (AF...

An Experimentally Derived Microscale Blood and Lymphatic Vasculature Model for Applications to Radiopharmaceutical Dosimetry

Authors: Peter Balogh, Wesley E. Bolch, Mir Md Nasim Hossain, Nien-Wen Hu, Walter Murfee, Wyatt Smither, Julia D. Withrow

Affiliation: New Jersey Institute of Technology, University of Florida

Abstract Preview: Purpose: To develop 3D computational, tissue-representative models incorporating physiologically relevant microvascular network patterns for calculating local alpha particle and electron dosimetry eff...

Extremity Imaging with Cone-Beam CT (CBCT) Scanner Dedicated for Hip Imaging – What Are the Effective Doses?

Authors: Jeff Boob, Jaydev K. Dave, Tim Minch, Bhavyata Tanna

Affiliation: Dr. Ronald E. McNair Academic High School, Mayo Clinic, CurveBeam AI

Abstract Preview: Purpose: To compute effective doses associated with imaging of the extremities with a HiRise (CurveBeam AI, Hatfield, PA) cone-beam CBCT scanner specifically designed for weight-bearing imaging of the...

Icrp Mesh-Type Reference Computational Phantoms Representing Pregnant Women and Fetuses

Authors: Wesley E. Bolch, Chansoo Choi, Chan Hyeong Kim, Suhyeon Kim, Bangho Shin, Yeon Soo Yeom

Affiliation: Hanyang University, University of Florida, 2) Department of Radiation Convergence Engineering, Yonsei University

Abstract Preview: Purpose: Task Group 103 of International Commission on Radiological Protection (ICRP) recently released new-generation adult and pediatric mesh-type reference computational phantoms (MRCPs) via ICRP P...

Investigation of Treatment Planning System (TPS) Algorithms for Helical Tomotherapy Total Body Irradiation (TBI)

Authors: John T Barrett, Chulhaeng Huh, Farshad Mostafaei, Michelle Rocque, Austin Sanders

Affiliation: Department of Radiation Oncology, Medical College of Georgia, Augusta University, Department of Radiation Oncology, Augusta University, Georgia Radiation Therapy Center, Wellstar-MCG Health

Abstract Preview: Purpose: This study involved the use of Accuray’s TPS (Precision) and RayStation TPS for planning TBI treatments. TBI was delivered using Accuray’s Radixact machine, and dose calculation algorithm, do...

Mesh-Based Multiregion Model of Adult Human Kidneys for Dosimetric Evaluation of Radiopharmaceutical Therapy

Authors: John P. Aris, Wesley E. Bolch, Chansoo Choi, Carlos G. Colon-Ortiz, Robert Joseph Dawson, Abdul-Vehab Dozic, Amy M. Geyer, Harald Paganetti, Shreya P. Pathak, Julia D. Withrow

Affiliation: St. Luke's Health System, Massachusetts General Hospital, University of Florida

Abstract Preview: Purpose: The goal of this study was to enhance the accuracy of renal dosimetry in radiopharmaceutical therapy (RPT) by developing a more detailed and precise kidney model. In RPT, accurate dose estima...

On Estimating Effective Doses Associated with Different Imaging Protocols for Weight-Bearing Imaging of the Hip with a Dedicated Cone Beam CT (CBCT) Scanner

Authors: Jeff Boob, Jaydev K. Dave, Tim Minch, Bhavyata Tanna

Affiliation: Dr. Ronald E. McNair Academic High School, Mayo Clinic, CurveBeam AI

Abstract Preview: Purpose: To estimate effective doses associated with different imaging protocols for hip imaging with a cone beam CT (CBCT) scanner specifically designed for weight-bearing acquisitions.
Methods: A...

S Values for a Monkey Computational Model for Internally Distributed Radiation Sources

Authors: Jae Won Jung, Daniel Lee

Affiliation: Thomas S. Wootton High School, East Carolina University Brody School of Medicine

Abstract Preview: Purpose: Monkeys have played a key role in enhancing our understanding of the behavior of radioactive materials within living organisms in the field of nuclear medicine. However, detailed dosimetric d...