Christopher L. Deufel
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View article: AAPM task group 317 report: A joint AAPM and ESTRO report on brachytherapy catheter, needle, and applicator tracking technology
AAPM task group 317 report: A joint AAPM and ESTRO report on brachytherapy catheter, needle, and applicator tracking technology Open
In recent years, various tracking technologies that work independently of imaging systems have been proposed to automate, simplify, and enhance various tasks in the brachytherapy treatment workflow. These tasks, critical to the overall acc…
View article: Simulation‐free workflow for lattice radiation therapy using deep learning predicted synthetic computed tomography: A feasibility study
Simulation‐free workflow for lattice radiation therapy using deep learning predicted synthetic computed tomography: A feasibility study Open
Purpose Lattice radiation therapy (LRT) is a form of spatially fractionated radiation therapy that allows increased total dose delivery aiming for improved treatment response without an increase in toxicities, commonly utilized for palliat…
View article: Active ultrasound tracking method for prostate brachytherapy using acoustic needle prototype and sonomicrometry
Active ultrasound tracking method for prostate brachytherapy using acoustic needle prototype and sonomicrometry Open
We introduced an experimental active ultrasound-tracked needle and employed sonomicrometry to measure the needle's displacements and triangulate its spatial position. The measurements and 3D spatial tracking yielded promising results for p…
View article: Reinforcement learning‐based anatomical maps for pancreas subregion and duct segmentation
Reinforcement learning‐based anatomical maps for pancreas subregion and duct segmentation Open
Background The pancreas is a complex abdominal organ with many anatomical variations, and therefore automated pancreas segmentation from medical images is a challenging application. Purpose In this paper, we present a framework for segment…
View article: Development and Dosimetric Characterization of a Customizable Shield for Subtotal Skin Electron Beam Therapy
Development and Dosimetric Characterization of a Customizable Shield for Subtotal Skin Electron Beam Therapy Open
The customizable shield is well suited to providing patient-specific shielding for subtotal skin electron beam therapy.
View article: Long-term outcomes of intraoperatively-placed applicator brachytherapy for rapid completion of breast conserving treatment: An analysis of a prospective registry data
Long-term outcomes of intraoperatively-placed applicator brachytherapy for rapid completion of breast conserving treatment: An analysis of a prospective registry data Open
Postmenopausal status, BMI < 30 kg/m2, and ET- adherence predicted favorable IBTRFS. Our results highlight the importance of careful patient selection for ABB and encouragement of ET compliance.
View article: On the importance of quality assurance (QA) for COMS eye plaque Silastic inserts: A guide to measurement methods, typical variations, and an example of how QA intercepted a manufacturing aberration
On the importance of quality assurance (QA) for COMS eye plaque Silastic inserts: A guide to measurement methods, typical variations, and an example of how QA intercepted a manufacturing aberration Open
Purpose Eye plaques are widely used for ocular melanoma and provide an effective alternative to enucleation with adequate tumor control. A COMS plaque utilizes a Silastic insert for precise positioning of the radioactive seeds with respect…
View article: RapidBrachyMCTPS 2.0: A Comprehensive and Flexible Monte Carlo-Based Treatment Planning System for Brachytherapy Applications
RapidBrachyMCTPS 2.0: A Comprehensive and Flexible Monte Carlo-Based Treatment Planning System for Brachytherapy Applications Open
We have previously described RapidBrachyMCTPS, a brachytherapy treatment planning toolkit consisting of a graphical user interface (GUI) and a Geant4-based Monte Carlo (MC) dose calculation engine. This work describes the tools that have r…
View article: Preliminary results of modified interstitial MIAMI brachytherapy applicator for treatment of upper and apical vaginal tumors
Preliminary results of modified interstitial MIAMI brachytherapy applicator for treatment of upper and apical vaginal tumors Open
Our data suggests that the custom applicator is associated with robust dosimetric coverage, good loco-regional control, acceptable toxicity, and reduced tissue trauma. This device allows treatment of apically located vaginal tumors without…
View article: Experimental validation of a new COMS-like 24 mm eye plaque for the treatment of large ocular melanoma tumors
Experimental validation of a new COMS-like 24 mm eye plaque for the treatment of large ocular melanoma tumors Open
The new 24 mm COMS-like plaque was experimentally validated for clinical use. Physical and dosimetric measurements for the 24 mm plaque agreed with nominal specifications and theoretical predictions. The 24 mm plaque provides greater basal…
View article: Technique for the administration of high-dose-rate brachytherapy to the bile duct using a nasobiliary catheter
Technique for the administration of high-dose-rate brachytherapy to the bile duct using a nasobiliary catheter Open
Intraluminal HDR brachytherapy with a nasobiliary catheter can be successfully administered. Procedures and QA are described for ensuring safety and overcoming technical challenges.
View article: Low dose rate prostate brachytherapy
Low dose rate prostate brachytherapy Open
Low dose rate (LDR) prostate brachytherapy is an evidence based radiation technique with excellent oncologic outcomes. By utilizing direct image guidance for radioactive source placement, LDR brachytherapy provides superior radiation dose …
View article: Patient safety is improved with an incident learning system—Clinical evidence in brachytherapy
Patient safety is improved with an incident learning system—Clinical evidence in brachytherapy Open
Implementation of an ILS in brachytherapy significantly reduced risk during cancer patient care. Safety improvements have been sustained over several years.
View article: A method to improve dose uniformity during total skin electron beam therapy in patients with pendulous breasts
A method to improve dose uniformity during total skin electron beam therapy in patients with pendulous breasts Open
SummaryTotal skin electron beam therapy will not provide adequate radiation dose to the inframammary folds in patients with pendulous breasts. We used a nylon breast support sling during treatment. In vivo dosimetry revealed satisfactory r…