165 citations · 704 across the 37 of their papers we have counts for
17 papers · 1 filter
Image registration of an electromagnetic tracking enabled afterloader and CT using a phantom for the quality control of implant reconstruction
Isaac Neri Gomez-Sarmiento, Daline Tho, Christopher Dürrbeck +3
Electromagnetic tracking (EMT) shows great potential for automating implant reconstruction in brachytherapy. One of the challenges of this technology is that it does not intrinsica…
Hybrid Cerenkov-scintillation detector validation using Monte Carlo simulations
Emilie Jean, Simon Lambert-Girard, Francois Therriault-Proulx +1
Objective: This study aimed at investigating through Monte Carlo simulations the limitations of a novel hybrid Cerenkov-scintillation detector and the associated method for irradia…
External beam irradiation angle measurement using Cerenkov emission
Emilie Jean, Simon Lambert-Girard, Francois Therriault-Proulx +1
Due to its angular dependency, Cerenkov light has long been considered a contamination signal in plastic scintillating dosimeters. In this study, we propose a novel approach design…
Accurate Dose Measurements Using Cherenkov Polarization Imaging
Emily Cloutier, Louis Archambault, Luc Beaulieu
Purpose: Cherenkov radiation carries the potential of direct in-water dose measurements, but its precision is currently limited by a strong anisotropy. Taking advantage of polariza…
Performance of an Enhanced Afterloader with Electromagnetic Tracking Capabilities for Channel Reconstruction and Error Detection
Daline Tho, Marie-Claude Lavallée, Luc Beaulieu
The reconstruction and error detection performance of a Flexitron research unit equipped with a special check-cable in which is integrated an EM sensor (NDI Aurora V3) that enables…
Deformable Scintillation Dosimeter II: Real-Time Simultaneous Measurements of Dose and Tracking of Deformation Vector Fields
Emily Cloutier, Luc Beaulieu, Louis Archambault
Anatomical motion and deformation pose challenges to the understanding of the delivered dose distribution during radiotherapy treatments. Hence, deformable image registration (DIR)…
Deformable Scintillation Dosimeter I: Challenges and Implementation using Computer Vision Techniques
Emily Cloutier, Louis Archambault, Luc Beaulieu
Plastic scintillation detectors are increasingly used to measure dose distributions in the context of radiotherapy treatments. Their water-equivalence, real-time response and high…
3D source tracking and error detection in HDR using two independent scintillator dosimetry systems
Haydee M. Linares Rosales, Jacob G. Johansen, Gustavo Kertzscher +3
The high dose gradients near the source characteristics of brachytherapy are equivalent to nefarious effects if unnoticed errors take place during the patient treatment. In vivo do…
From conception to clinical trial: IViST -- the first multi-sensor-based platform for real-time In Vivo dosimetry and Source Tracking in HDR brachytherapy
Haydee M. Linares Rosales, Audrey Cantin, Sylviane Aubin +2
This study aims to introduce IViST (In Vivo Source Tracking), a novel multi-sensors dosimetry platform for real-time treatment monitoring in HDR brachytherapy. IViST is a platform…
On the use of machine learning methods for mPSD calibration in HDR brachytherapy
Haydee M. Linares Rosales, Gabriel Couture, Louis Archambault +3
Purpose: We sought to evaluate the feasibility of using machine learning algorithms for multipoint plastic scintillator detector calibration in high-dose-rate brachytherapy. Method…
Dosimetric performance of a multi-point plastic scintillator dosimeter as a tool for real-time source tracking in high dose rate brachytherapy
Haydee M. Linares Rosales, Louis Archambault, Sam Beddar +1
Purpose: To present the performance of a multi-point plastic scintillation detector (mPSD) as a tool in vivo dosimetry in brachytherapy. Methods: A previously optimized three-point…
A GPU-based multi-criteria optimization algorithm for HDR brachytherapy
Cédric Bélanger, Songye Cui, Yunzhi Ma +3
Currently in HDR brachytherapy planning, a manual fine-tuning of an objective function is necessary to obtain case-specific valid plans. This study intends to facilitate this proce…
Technical Note: A Novel Electromagnetic-Tracked Scintillation Dosimeter for Accurate In Vivo Dosimetry in HDR Brachytherapy
Daline Tho, Luc Beaulieu
Since large dose are administrated to the patient in brachytherapy treatment, ensuring the right dose is delivered is highly critical. This study presents a first step in solving t…
Investigation of the quinine sulfate dihydrate spectral properties and its effects on Cherenkov dosimetry
Emilie Jean, Marie-Eve Delage, Luc Beaulieu
Recent studies have proposed that adding quinine to water while performing Cherenkov volumetric dosimetry improves the skewed percent depth dose measurement. The aim of this study…
Optimization of a multipoint plastic scintillator dosimeter for high dose rate brachytherapy
Haydee M. Linares Rosales, Patricia Duguay-Drouin, Louis Archambault +2
Purpose: This study aims to optimize and characterize the response of a mPSD for in vivo dosimetry in HDR brachytherapy. Methods: An exhaustive analysis was carried out in order to…
On EM Reconstruction of a Multi Channel Shielded Applicator for Cervical Cancer Brachytherapy: A Feasibility Study
D. Tho, E. Racine, H. Easton +2
Electromagnetic tracking (EMT) is a promising technology for automated catheter and applicator reconstruc- 10 tions in brachytherapy. In this work, a proof-of-concept is presented…
A theoretical framework to predict the most likely ion path in particle imaging
Charles-Antoine Collins-Fekete, Lennart Volz, Stephen K. N. Portillo +2
In this work, a generic rigorous Bayesian formalism is introduced to predict the most likely path of any ion crossing a medium between two detection points. The path is predicted b…