Ultrasound–fluoroscopy registration for prostate brachytherapy dosimetry
نویسندگان
چکیده
Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, USA b School of Computing, Queen’s University, Kingston, ON, Canada Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, School of Medicine, Baltimore, MD, USA Chair for Computer Aided Medical Procedures & Augmented Reality, Technische Universität München, Germany Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA Department of Computer Science, Johns Hopkins University, Baltimore, MD, USA Acoustic MedSystems Inc., Champaign, IL, USA
منابع مشابه
Towards Intra-operative Prostate Brachytherapy Dosimetry Based on Partial Seed Localization in Ultrasound and Registration to C-arm Fluoroscopy
Intraoperative dosimetry during prostate brachytherapy is a long standing clinical problem. We propose a novel framework to address this problem by reliable detection of a subset of seeds from 3D transrectal ultrasound and registration to fluoroscopy. Seed detection in ultrasound is achieved through template matching in the RF ultrasound domain followed by thresholding and spatial filtering bas...
متن کاملUltrasound-fluoroscopy registration for prostate brachytherapy dosimetry
Prostate brachytherapy is a treatment for prostate cancer using radioactive seeds that are permanently implanted in the prostate. The treatment success depends on adequate coverage of the target gland with a therapeutic dose, while sparing the surrounding tissue. Since seed implantation is performed under transrectal ultrasound (TRUS) imaging, intraoperative localization of the seeds in ultraso...
متن کاملRegistration between ultrasound and fluoroscopy or CT in prostate brachytherapy.
PURPOSE In prostate brachytherapy, transrectal ultrasound (TRUS) is used to visualize the anatomy, while implanted seeds can be visualized by fluoroscopy. Intraoperative dosimetry optimization is possible using a combination of TRUS and fluoroscopy, but requires localization of the fluoroscopy-derived seed cloud, relative to the anatomy as seen on TRUS. The authors propose to develop a method o...
متن کاملC-arm Pose Estimation in Prostate Brachytherapy by Registration to Ultrasound
In prostate brachytherapy, transrectal ultrasound (TRUS) is used to visualize the anatomy, while implanted seeds can be seen in C-arm fluoroscopy. Intra-operative dosimetry optimization requires reconstruction of the implanted seeds from multiple C-arm fluoroscopy images, which in turn requires estimation of the C-arm poses. We estimate the pose of the C-arm by two-stage registration between th...
متن کاملLocalization of Brachytherapy Seeds in Ultrasound by Registration to Fluoroscopy
Motivation: In prostate brachytherapy, transrectal ultrasound (TRUS) is used to visualize the anatomy, while implanted seeds can be seen in C-arm fluoroscopy or CT. Intra-operative dosimetry optimization requires localization of the implants in TRUS relative to the anatomy. This could be achieved by registration of TRUS images and the implants reconstructed from fluoroscopy or CT. Methods: TRUS...
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