Intrafraction motion 意味
WebSep 29, 2024 · The output of the detection model can be used to reconstruct the 3D positions of the fiducial markers and then evaluate the intrafraction motion via a rigid … WebJun 15, 2016 · For intrafraction motion, we assessed the percentage of mean errors that fell outside of the threshold of 2 mm, 3 mm, and 5 mm along the translational directions. The required PTV margin was quantified over the course of treatment.
Intrafraction motion 意味
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WebFeb 27, 2024 · Motion monitoring. KIM real-time target position was used to monitor the intrafraction prostate motion in the KIM trial. The KIM technology uses kV fluoroscopy to monitor, in real-time, the 3D position of three radio-opaque markers implanted into the prostate target [9, 15].It uses 2D X-ray images to accurately estimate the 3D target …
http://ja.dictionary.education/english/dictionary/intrafraction WebAug 24, 2024 · This study aims to quantify the movement of the sigmoid colon between different fractions of radiotherapy treatment (interfraction motion) and within the same fraction (intrafraction motion). This knowledge will help us determine the optimal margin to use in radiotherapy treatment planning. Condition or disease.
WebDec 30, 2014 · Lin Y, Liu T, Yang W, Yang X and Khan M K 2013 The non-Gaussian nature of prostate motion based on real-time intrafraction tracking Int. J. Radiat. Oncol. Biol. … WebEvaluation of intrafraction motion of the organs at risk in image-based brachytherapy of cervical cancer Brachytherapy. 2014 Nov ... However for the sigmoid colon, there was …
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WebOptical guidance systems have also been used to measure inter- and intra-fraction motion for whole and partial breast radiotherapy. 12-14 Inter-fraction motion fell within a root … trew industrial wheels nashvilleWebAug 1, 2024 · Different intrafraction motion monitoring methods proposed in the literature and demonstrated in real-time on clinical data as well as their possible future developments are reviewed and compared. Radiotherapy (RT) aims to deliver a spatially conformal dose of radiation to tumours while maximizing the dose sparing to healthy tissues. However, the … trew industrialWebAlthough 4D-MRI can resolve motion in three dimensions, several motion cycles are required to meet the data sufficiency conditions to construct 4D volumes. This limits the utility of 4D-MRI for real-time intrafraction motion monitoring. Recently, the combination of pre-beam 4D-MRI and beam-on cine imaging has been proposed as a dose tre wind offertaWebIntrafraction motion is the motion of the target volume. delivery of the prescription dose to the target volume at all times. However, most. right after treatment. Both types of motion … trew industrial wheels nashville tnWebDec 8, 2011 · the magnitude of motion expected. As much of inter-and intra-fraction motion is patient related, the ideal study would have a large sample size, but this could … tengo sed sport barWebOct 9, 2005 · The intrafraction variation (patient/organ motion) was minimal with variations in CLD (at most 0.25 cm). Range of lung area and heart area were also minimal. The interfraction variation (set up error) was LARGE compared to the intrafraction variation, with CLD's ranging from 0.59 cm in the most reproducible patient and the worst patient … tengo pronunciation in spanishWebNov 11, 2024 · Measurement(s) intrafraction prostate motion Technology Type(s) ultrasound method Sample Characteristic - Organism Homo sapiens Machine-accessible metadata file describing the reported data: https ... tengo phrases spanish