Magnetic resonance imaging (MRI) can depict the prostatic outline better than CT. In treatment plans using CT and MRI registration, various markers are used in institutions; however, the selection of an optimal marker size is difficult. Comparison of a different fiducial marker study was conducted...
prostate/rectal interface is the most critical area to align, placing the markers in the posterior part of the prostate is preferred. After placement, typically at least one week is given before moving forward with CT simulation. The locations of the FMs are delineated on the CT image dataset...
TU‐C‐204B‐07: A Comparative Study for Daily Localization with 3D Ultrasound, Cone Beam CT, Implanted Prostate Fiducial Markers and Calypso 4D Localizati... Purpose: To assess the accuracy and dosimetric implications of multi‐modality, online image‐guided localization methods, including intra‐...
How Soon after Fiducial Marker Implantation Should Patients Have Their Planning CT Scan Done for Prostate Cancer Radiotherapy?T-47D cellslow dose hyper-radiosensitivitylow dose-rate irradiationmedium transferPurpose: To investigate the mechanisms of elimination of low-dose hyper-radiosensitivity (HRS) in ...
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 ...
摘要原文 To objectively compare the suitability of MRI pulse sequences and commercially available fiducial markers (FMs) for MRI-only prostate radiotherapy simulation. Most FMs appear as small signal voids in MRI images making them difficult to differentiate from tissue heterogeneities such as calcificati...
fiducial Thesaurus Acronyms Wikipedia Related to fiducial:fiducial mark,fiducial limits,fiducial point fi·du·cial (fĭ-do͞o′shəl, -dyo͞o′-, fī-) adj. 1.Based on or relating to faith or trust. 2.Relating to or characteristic of a legal trust; fiduciary. ...
Gold Anchor fiducial markers in prostate, automatically detected by Varian TrueBeam® Images courtesy of the Sahlgrenska University Hospital Enabling state of the art radiotherapy Intrafraction Motion Management Onboard kV-imaging Elekta XVI seed match ...
Sparks L, Laferlita M: Comparison of CT on rails with electronic portal imaging for positioning of prostate cancer patients with implanted fiducial markers... R Owen,T Kron,F Foroudi,... - 《Int J Radiat Oncol Biol Phys》 被引量: 48发表: 2009年 加载更多来源...
The rate of using 2 fiducial markers for tracking during the treatment was 22.20% and 9.38% of the markers were not used.We must keep improving the quality of fuducial marker implantation and the number of markers.We should lower the rate of using two markers as much as possible and raise...