Journal ArticleBrachytherapy · 2024
PURPOSE: To provide a practical method of estimating medium-heterogeneity corrected dose without a Monte Carlo (MC) calculation in ocular brachytherapy using 125I Collaborative Ocular Melanoma Study (COMS) plaques. METHODS AND MATERIALS: Using egs_brachy, ...
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Journal ArticleJ 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 ...
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Journal ArticleJ Contemp Brachytherapy · December 2022
PURPOSE: This study quantifies the dosimetric impact of incorporating two iodine-125 (125I) seed source strengths in Eye Physics eye plaques for treatment of uveal melanoma. MATERIAL AND METHODS: Plaque Simulator was used to retrospectively plan 15 clinica ...
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Journal ArticleMedical Physics · November 2021
AbstractMesh brachytherapy is a special type of a permanent brachytherapy implant: it uses low‐energy radioactive seeds in an absorbable mesh that is sutured onto the tumor bed immediately after a surgical resection. This t ...
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Journal ArticleCureus · June 2021
Purpose The purpose of this study is to compare optic disc dose (ODD) between 125I and 103Pd Collaborative Ocular Melanoma Study (COMS) plaques in ocular brachytherapy. Methods A previously validated in-house brachytherapy dose calculation program was used ...
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Journal ArticleMedical Physics · October 2020
The surface brachytherapy Task Group report number 253 discusses the common treatment modalities and applicators typically used to treat lesions on the body surface. Details of commissioning and calibration of the applicators and systems are discus ...
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Journal ArticleJournal of Applied Clinical Medical Physics · September 2020
AbstractPurposeAlthough notched Collaborative Ocular Melanoma Study (COMS) plaques have been widely used, optic disc dose reduction by notched COMS plaques has not been discussed in the li ...
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Journal ArticleJournal of Applied Clinical Medical Physics · March 2016
The objective of this work is to present commissioning procedures to clinically implement a three‐dimensional (3D), image‐based, treatment‐planning system (TPS) for high‐dose‐rate (HDR) brachytherapy (BT) for gynecological (GYN) cancer. The physica ...
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Journal ArticleJournal of Applied Clinical Medical Physics · January 2014
The objective of this work is to evaluate dosimetric impact of multilumen balloon applicator rotation in high‐dose‐rate (HDR) brachytherapy for breast cancer. Highly asymmetrical dose distribution was generated for patients A and B, depending upon ...
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Journal ArticleMedical Physics · April 2011
Purpose:An objective method was proposed and compared with a manual selection method to determine planner‐independent skin and rib maximal dose in balloon‐based high dose rate (HDR) brachyth ...
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Journal ArticleJournal of Applied Clinical Medical Physics · June 2010
The purpose of this study is to dosimetrically compare two plans generated using single dwell position method (SDPM) and multiple dwell position methods (MDPM) in MammoSite high dose rate (HDR) brachytherapy planning for 19 breast cancer patients. ...
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Journal ArticleJournal of Applied Clinical Medical Physics · June 2010
The objective of this work is to evaluate the interfractional biological effective dose (BED) variation in MammoSite high dose rate (HDR) brachytherapy. Dose distributions of 19 patients who received 34 Gy in 10 fractions were evaluated. A method w ...
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Journal ArticleMedical Physics · December 2007
A dosimetric comparison was performed on external‐beam three‐dimensional conformal partial breast irradiation (PBI) and whole breast irradiation (WBI) plans for patients enrolled in the National Surgical Adjuvant Breast and Bowel Project (NSABP) B‐ ...
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Journal ArticleJournal of Applied Clinical Medical Physics · September 2007
The objective of the present work was to measure the craniocaudal displacement of catheters occurring between consecutive fractions of transrectal ultrasound (TRUS)‐guided high dose rate (HDR) prostate brachytherapy. Ten consecutive patients were t ...
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Journal ArticleMedical Physics · February 2006
Magnetic resonance imaging (MRI) and magnetic resonance spectroscopic imaging (MRSI) have been shown to be very useful for identifying prostate cancers. For high sensitivity, the MRI/MRSI examination is often acquired with an endorectal probe that ...
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Journal ArticleMedical Physics · December 2005
Endorectal coils (ERCs) are used for acquiring high spatial resolution magnetic resonance (MR) images of the human prostate. The goal of this study is to determine the impact of an expandable versus a rigid ERC on changes in the location and deform ...
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Journal ArticleMedical Physics · September 2004
In computed tomography (CT)‐based high dose rate (HDR) brachytherapy, the uncertainty in the localization of the longitudinal catheter‐tip positions due to the discrete CT slice thickness, results in a delivered dose uncertainty. Catheter coordinat ...
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