“Dose reduction potential of using gold fiducial markers for kilovoltage image-guided radiotherapy” Extract from abstract: This study aimed to evaluate the possibility of reducing the imaging dose for image-guided radiotherapy by using planar kilovoltage orthogonal imaging and [Gold Anchor] fiducial markers (kV-FM). We tested kilovoltage planar images under clinical imaging conditions for the pelvis (75 […]
Tag Archives: Prostate
“Carbon ion radiotherapy using fiducial markers for prostate cancer in Osaka HIMAK: Treatment planning” Extract from abstract: Purpose: Carbon ion radiotherapy for prostate cancer was performed using two fine needle Gold Anchor (GA) markers for patient position verification in Osaka Heavy Ion Medical Accelerator in Kansai (Osaka HIMAK). The present study examined treatment plans for […]
“Proton therapy planning and image-guidance strategies within a randomized controlled trial for high-risk prostate cancer” Extract from abstract: The Danish Prostate Cancer Group is launching the randomized trial, PROstate PROTON Trial 1 (NCT05350475), that compares photons and protons to the prostate and pelvic lymph nodes in treatment of high-risk prostate cancer. The aim of the […]
“Online Correction of Intrafraction Motion during Volumetric Modulated Arc Therapy for Prostate Radiotherapy: A Cohort Study Quantifying the Frequency of Shifts and Analysis of Men at Highest Risk” Methods (extract): 132 prostate cancer patients underwent planning CT and same day placement of 3 Gold Anchor markers. Triggered kV images were acquired every 10 seconds using […]
Clinical publications
Article from Radiological Physics and Technology, 2024Inter-fractional error and intra-fractional motion of prostate and dosimetry comparisons of patient position registrations with versus without fiducial markers during treatment with carbon-ion radiotherapyArticle from Radiological Physics and Technology, 2024
“Inter-fractional error and intra-fractional motion of prostate and dosimetry comparisons of patient position registrations with versus without fiducial markers during treatment with carbon-ion radiotherapy” Abstract (extract): In 2020, data from 15 patients with prostate cancer who received carbon-ion beam radiotherapy (CIRT) with gold markers were investigated. We checked marker positions before and during irradiation to […]
“Real-time gated proton therapy with a reduced source to imager distance: Commissioning and quality assurance” Introduction (extract): Real-time gated proton therapy (RGPT) is a motion management technique unique to the Hitachi particle therapy system. It uses pulsed fluoroscopy to track an implanted fiducial marker. The marker positional tolerance can be defined such that the proton […]
“Online correction of intrafraction motion during volumetric modulated arc therapy for prostate radiotherapy using fiducial-based kV imaging: A cohort study quantifying the frequency of shifts and analysis of men at highest risk” Background (extract): We sought to characterize setup corrections in our practice informed by the TrueBeam Advanced imaging package, and analyze factors associated with […]
Purpose (extract): “To clinically implement an MRI-only planning (MROP) workflow for both X-ray and MRI-guided systems.” Methods (extract): “MROP implementation involved optimizing MRI simulation protocols developing a deep learning-based sCT generation method, and automating fiducial marker detection. A multichannel CycleGAN model was trained using T1-weighted Dixon images to generate sCT. For SBRT cases, the immobilization device […]
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