MP05-18 PROSTATE FIDUCIAL MARKER PLACEMENT IN PATIENTS WHILE ON ANTICOAGULATION: FEASIBILITY PRIOR TO PROSTATE SBRTdoi:10.1016/j.juro.2017.02.177Haas, JonathanKatz, AaronHarris, JoshuaCarpenter, ToddCarbone, SusanKole, ThomasPristupa, StevenWitten, Matthew...
Purpose: To understand fiducial marker movement in prostate and to improve prostate patient positioning with fiducial markers. Methods: Patient planning CT and positioning CBCT were retrospectively analyzed.CBCTimages were automatically registered to the corresponding CT ones based on their bony structures ...
EP164 Audit of fiducial marker placement and utility in image guided prostate radiotherapyStereotactic body radiotherapy (SBRT) can deliver high radiation doses to small volumes with very tight margins, which has significant advantages when treating tumours close to the spinal cord or at sites of ...
14, 15 We analyzed a diverse range of clinical parameters as done by others15, 16 following a standardized procedure for planning including rectal enema for fiducial marker placement and simulation.17 However, there was no daily rectal prep during treatment itself and patients were not given ...
registration-error (TRE) between each MRI and the planning-CT image was calculated. Fiducial marker visibility was rated by two medical physicists with over three years of experience examining MRI-only prostate simulation images. The rater's classification accuracy was quantified using the F 1 score...
On April 10, 2020, the protocol was amended to allow for 4 months of treatment with androgen deprivation therapy (ADT) that was initiated 1 to 2 months before fiducial marker placement. All patients provided written informed consent for IDE and the PMS before randomization. Randomization and ...
Infections after fiducial marker implantation for prostate radiotherapy: are we underestimating the risks? The use of gold fiducial markers (FM) for prostate image-guided radiotherapy (IGRT) is standard practice. Published literature suggests low rates of seriou... Jasmin,Loh,Katie,... - 《Radiatio...
radiopaque hydrogel spacer insertion, and fiducial marker placement are required, and SABR will be delivered on either a standard CT-guided linear accelerator or MR-LINAC. The primary endpoint will be freedom from disease progression, with additional secondary clinical, toxicity, and quality of life ...
As for image-guided radiotherapy, it has been commonly performed through the acquisition of onboard cone beam computed tomography (CBCT) [48]. Nonetheless, CBCT has poor soft tissue discrimination capacity, and therefore invasive placement of radiopaque fiducials to serve as markers of prostate posit...
Gold fiducial marker LR: Left-right MEGRE: Multi echo gradient echo MI: Mutual information MR: Magnetic resonance MRI: Magnetic resonance imaging PTV: Planning target volume sCT: Synthetic CT References Salembier C, Villeirs G, De Bari B, Hoskin P, Pieters BR, Van Vulpen M, et...