Joel Poder
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View article: Mid-ventilation PTV approach for stereotactic ablative body radiotherapy in stage I non-small-cell lung carcinoma: Implementation of a single-system workflow
Mid-ventilation PTV approach for stereotactic ablative body radiotherapy in stage I non-small-cell lung carcinoma: Implementation of a single-system workflow Open
View article: Quality assurance of single isocentre multiple target stereotactic radiosurgery: Findings from long‐term off‐axis Winston‐Lutz testing and machine performance checks
Quality assurance of single isocentre multiple target stereotactic radiosurgery: Findings from long‐term off‐axis Winston‐Lutz testing and machine performance checks Open
Background Single‐isocenter multiple‐target stereotactic radiosurgery (SIMT SRS) has emerged as an efficient treatment for multiple brain metastases. However, this technique demands exceptional geometric accuracy, particularly off‐axis, to…
View article: Establishing Linearity of the MOSkin Detector for Ultra-High Dose-per-Pulse, Very-High-Energy Electron Radiotherapy Using Dose-Rate-Corrected EBT-XD Film
Establishing Linearity of the MOSkin Detector for Ultra-High Dose-per-Pulse, Very-High-Energy Electron Radiotherapy Using Dose-Rate-Corrected EBT-XD Film Open
Very-high-energy electrons, coupled with ultra-high dose rates, are being explored for their potential use in radiotherapy to treat deep-seated tumours. The dose per pulse needed to achieve ultra-high dose rates far exceeds the limit of cu…
View article: Simulation and measurements of HDR brachytherapy source dosimetric parameters using a fiber-optic dosimeter
Simulation and measurements of HDR brachytherapy source dosimetric parameters using a fiber-optic dosimeter Open
View article: Improving patient specific quality assurance for image registration: clinical use case of target contouring for PET deformable image registration
Improving patient specific quality assurance for image registration: clinical use case of target contouring for PET deformable image registration Open
View article: High spatial resolution dosimetry for radiation oncology with “MagicPlates,” a new 976‐pixel monolithic silicon detector
High spatial resolution dosimetry for radiation oncology with “MagicPlates,” a new 976‐pixel monolithic silicon detector Open
Purpose We introduce the next generation of “MagicPlate” 2D monolithic pixelated semiconductor detectors – MagicPlate‐976 (MP976). It features a larger array area, higher spatial resolution, and does not require external triggering. We per…
View article: Calibrating p-i-n Diodes for Displacement Damage Monitoring in a Space Radiation Environment
Calibrating p-i-n Diodes for Displacement Damage Monitoring in a Space Radiation Environment Open
This work investigates the response of specially developed silicon p-i-n diodes with a long base as sensors to measure displacement damage dose (DDD) in silicon. Measurements of DDD are based on the forward voltage shift ( ΔVF )…
View article: Mid-Ventilation PTV Approach for Stereotactic Ablative Body Radiotherapy in Stage I Non-Small-Cell Lung Carcinoma: Implementation of a Single-System Workflow
Mid-Ventilation PTV Approach for Stereotactic Ablative Body Radiotherapy in Stage I Non-Small-Cell Lung Carcinoma: Implementation of a Single-System Workflow Open
View article: Assessment of contour accuracy in head and neck replanning: Deep learning trained model compared with deformable image registration propagation technique
Assessment of contour accuracy in head and neck replanning: Deep learning trained model compared with deformable image registration propagation technique Open
Accurate contouring is crucial for optimal treatment outcomes, whether for nonadaptive radiotherapy with single images or adaptive radiotherapy (ART) with multiple images. For ART there are 2 common approaches for automated segmentation: d…
View article: A review of whole gland prostate brachytherapy with focal dose escalation to intra-prostatic lesions: Clinical efficacy and technical aspects
A review of whole gland prostate brachytherapy with focal dose escalation to intra-prostatic lesions: Clinical efficacy and technical aspects Open
View article: Review on high spatial resolution dosimetry with pixelated semiconductor detectors for radiation therapy
Review on high spatial resolution dosimetry with pixelated semiconductor detectors for radiation therapy Open
Current and emerging radiation therapy treatment techniques are characterized by complex and spatially non-uniform dose distributions with steep dose gradients delivered through high-precision dose placement with small radiation fields. Su…
View article: Characterization of the First Prototype of an Angular Independent Silicon Diode Array for Quality Assurance in Stereotactic Radiosurgery
Characterization of the First Prototype of an Angular Independent Silicon Diode Array for Quality Assurance in Stereotactic Radiosurgery Open
Quality assurance (QA) ensures the accurate and safe delivery of radiation treatment. However, there are several challenges for advanced radiotherapy techniques, such as stereotactic radiosurgery (SRS), where substantial doses of radiation…
View article: HDR brachytherapy afterloader quality assurance optimization using monolithic silicon strip detectors
HDR brachytherapy afterloader quality assurance optimization using monolithic silicon strip detectors Open
Background There currently exists no widespread high dose‐rate (HDR) brachytherapy afterloader quality assurance (QA) tool for simultaneously assessing the afterloader's positional, temporal, transit velocity and air kerma strength accurac…
View article: Preliminary Characterization of an Active CMOS Pad Detector for Tracking and Dosimetry in HDR Brachytherapy
Preliminary Characterization of an Active CMOS Pad Detector for Tracking and Dosimetry in HDR Brachytherapy Open
We assessed the accuracy of a prototype radiation detector with a built in CMOS amplifier for use in dosimetry for high dose rate brachytherapy. The detectors were fabricated on two substrates of epitaxial high resistivity silicon. The rad…
View article: HDR prostate brachytherapy plan robustness and its effect on in‐vivo source tracking error thresholds: A multi‐institutional study
HDR prostate brachytherapy plan robustness and its effect on in‐vivo source tracking error thresholds: A multi‐institutional study Open
Purpose The purpose of this study was to examine the effect of departmental planning techniques on appropriate in‐vivo source tracking error thresholds for high dose rate (HDR) prostate brachytherapy (BT) treatments, and to determine if a …
View article: Investigation of in vivo source tracking error thresholds for interstitial and intra-cavitary high-dose-rate cervical brachytherapy
Investigation of in vivo source tracking error thresholds for interstitial and intra-cavitary high-dose-rate cervical brachytherapy Open
Determining the dosimetric impact of dwell position displacement provides a clinical benchmark for the development of pre-treatment verification devices and an action level for real-time treatment monitoring. It was established that an …
View article: Use of deformable image registration techniques to estimate dose to organs at risk following prostate external beam radiation therapy and high-dose-rate brachytherapy
Use of deformable image registration techniques to estimate dose to organs at risk following prostate external beam radiation therapy and high-dose-rate brachytherapy Open
This retrospective study demonstrates significant differences in accumulated rectal dose prediction using different image registration methods. Each method has limitations in its application, and when used with real-time HDR-BT dose planni…
View article: An international survey on the clinical use of rigid and deformable image registration in radiotherapy
An international survey on the clinical use of rigid and deformable image registration in radiotherapy Open
Objectives Rigid image registration (RIR) and deformable image registration (DIR) are widely used in radiotherapy. This project aims to capture current international approaches to image registration. Methods A survey was designed to identi…
View article: Deforming to Best Practice: Key considerations for deformable image registration in radiotherapy
Deforming to Best Practice: Key considerations for deformable image registration in radiotherapy Open
Image registration is a process that underlies many new techniques in radiation oncology – from multimodal imaging and contour propagation in treatment planning to dose accumulation throughout treatment. Deformable image registration (DIR)…
View article: The RABBIT risk-based approach to clinical implementation of new technology: SRS as a case study
The RABBIT risk-based approach to clinical implementation of new technology: SRS as a case study Open
View article: Development of a System for Comprehensive in-vivo validation of Transrectal ultrasound based high Dose rate prostate brachytherapy Treatments
Development of a System for Comprehensive in-vivo validation of Transrectal ultrasound based high Dose rate prostate brachytherapy Treatments Open
High dose rate (HDR) brachytherapy is a treatment modality commonly used for the treatment of prostate cancer. In this technique, radiation is emitted from within the prostate, allowing for high doses to be delivered to the prostate whilst…
View article: An innovative gynecological HDR brachytherapy applicator system for treatment delivery and real-time verification
An innovative gynecological HDR brachytherapy applicator system for treatment delivery and real-time verification Open
View article: Development of a dedicated phantom for multi‐target single‐isocentre stereotactic radiosurgery end to end testing
Development of a dedicated phantom for multi‐target single‐isocentre stereotactic radiosurgery end to end testing Open
Purpose The aim of this project was to design and manufacture a cost‐effective end‐to‐end (E2E) phantom for quantifying the geometric and dosimetric accuracy of a linear accelerator based, multi‐target single‐isocenter ( MTSI ) frameless s…
View article: <scp>HDR</scp> brachytherapy in vivo source position verification using a 2D diode array: A Monte Carlo study
<span>HDR</span> brachytherapy in vivo source position verification using a 2D diode array: A Monte Carlo study Open
Purpose This study aims to assess the accuracy of source position verification during high‐dose rate ( HDR ) prostate brachytherapy using a novel, in‐house developed two‐dimensional (2D) diode array (the Magic Plate), embedded exactly belo…