Hippocampus sparing contouring

Author: gixc

August undefined, 2024

Webb9 jan. 2024 · The left hippocampus sparing was higher with IMRT. Compared to VMAT, the dose to the hippocampi, amygdalae and temporal lobes was significantly decreased in the IMRT plans. Conclusions: Dosimetric comparison of WV-RT/TB in IGCT suggests PBS-PT's advantage over photons in conformality and NOAR sparing, whereas IMRT's … WebbWe are a leading protocol organizations within the National Clinical Trials Network and we seek to improve the lives of cancer patients by conducting practice …

Hippocampal Avoidance During Whole-Brain Radiotherapy Plus …

WebbHippocampal Contouring: A Contouring Atlas for RTOG 0933 Vinai Gondi, M.D. 1 Wolfgang A. Tome, Ph.D. 1 Howard A. Rowley, M.D. 2 Minesh P. Mehta, M.D. 3 … the oars at greenback

Optimization of hippocampus sparing during whole brain

Webb1 sep. 2024 · Forty-two clinical cases were contoured according to guidelines. A new dosimetric scorecard was created as an objective measure for plan quality. The new Hippocampal Sparing Whole Brain Version 2 (HSWBv2) model adopted a complex recursive training process and was validated with five additional cases. Webb16 maj 2024 · Contouring was performed on axial images, in clinical condition. Coronal and sagittal projections were also used to check the appropriateness of the … WebbWe explain how to contour the hippocampus on axial T1 echo sequence magnetic resonance images with intravenous gadolinium. Results: Step 2: Contour inferiorly … the oar ri

Development of a contouring guide in three different head

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Webb20 feb. 2024 · We hypothesized that hippocampal-sparing radiotherapy via volumetric modulated arc therapy (VMAT) could preserve the neurocognitive function (NCF) of patients with primary brain tumors treated with radiotherapy. We reviewed data from patients with primary brain tumors who underwent hippocampal-sparing brain … Webb30 okt. 2024 · The hippocampal contours were generated automatically (except for minor manual edits in 1% of cases); although not timed here, these contours are typically … theoarsman.co.ukWebb29 apr. 2024 · Hippocampal avoidance regions were manually generated by 3D expansion of the hippocampal contours by 5 mm. 18 Per protocol, maximum dose to the hippocampus itself should not exceed 16 Gy. However, maximum dose ≤17 Gy was deemed variation acceptable. the oarsman carrick

"WebbContours were revised by two neuro-radiologists with >5-year expertise in neuroimaging. Results: A guide was developed for each of three head positions considered. RTOG … " - Hippocampus sparing contouring

Hippocampus sparing contouring

RapidPlan hippocampal sparing whole brain model version …

Webb31 mars 2024 · Sparing of the hippocampus was evaluated considering the mean dose, the D98% and D2%, as well as the equivalent dose in 2 Gy fractions (EQD2) with an … Webb1 apr. 2024 · Hippocampal avoidance (HA) using intensity-modulated radiotherapy during whole-brain radiotherapy (WBRT) is hypothesized to preserve cognition. Methods: The primary end point was time to cognitive function failure, defined as decline using the reliable change index on at least one of the cognitive tests.

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Webb16 maj 2024 · In particular, in cranial radiotherapy the contouring accuracy is a key factor in sparing organs at risk especially in hippocampus sparing, because of both anatomical complexity of this structure and clinical implications related to hippocampal injury. Webbby the curvilinear T1-hypointense hippocampal tail located just antero-medially to the atrium of the lateral ventricle (G). Contours terminated at the lateral edges of the quadrageminal cisterns (H), before the emergence of the crus of the fornix. clustered neural stem cells. We propose that hippocampal spar- WBRT.

Webb14 aug. 2014 · Red: Hippocampus Amygdala Uncus As contouring proceeds postero-cranially, the anterior boundary of the hippocampus is defined by the anterior edge of … Webb31 mars 2011 · 3Prior to treatment, all hippocampal contours and HA-WBRT treatment plans will be rapidly reviewed centrally for protocol compliance. Permission to treat or request for revision will returned to the investigator within 3 business days. Resubmission of revised treatment plans will not be required unless requested, in which case rapid …

WebbHippocampal Contouring: A Contouring Atlas for RTOG 0933 Vinai Gondi, M.D.1 Wolfgang A. Tome, Ph.D. 1 Howard A. Rowley, M.D.2 Minesh P. Mehta, M.D. 3 … WebbAAPM

Webb16 juni 2014 · In “sparing” plans for the hemispheric HGG cases, it was possible to reduce the mean physical dose to the contralateral hippocampus planning-at-risk volume by …

WebbSparing the hippocampus during cranial irradiation poses important technical challenges with respect to contouring and treatment planning. Herein we report our preliminary … the oar restaurant riWebb18 feb. 2024 · In dual-arc conventional volumetric modulated arc therapy (dac-VMAT), the large irradiation field for whole brain planned target volume (PTV) requires a wide jaw opening in which substantial low dose volume to the hippocampus may be produced due to suboptimal multi-leaf collimator (MLC) movements. the oarsman chestWebb30 mars 2024 · Hippocampus as delineated according to the RTOG atlas shown in (A) axial, (B) coronal, and (C) sagittal planes in a representative patient with diagnosis of craniopharyngioma receiving SCRT, (D) beams eye view depicting the prescribed dose wash encompassing the tumor and sparing of the hippocampi, and (E) dose volume … the oarsmenWebbRed: Hippocampus MR Images courtesy of: Holmes CJ, Hoge R, Collins L, et al. "Enhancement of MR Images Using Registration for Signal Averaging" Journal of Computer Assisted Tomography 22, 324-333 (1998) 11 Continue contouring in a cephalad (superior) direction, medial to the temporal horn of the lateral ventricle and … the oarsmen by gustave caillebottehttp://amos3.aapm.org/abstracts/pdf/77-22550-313436-91048.pdf the oarsi histopathology initiativeWebb30 dec. 2024 · To streamline workflow, we evaluated MRI-atlas based auto-contouring of the hippocampus generated in Elements Treatment Planning System (TPS) compared … theo arsenalWebb16 juni 2014 · In “sparing” plans for the hemispheric HGG cases, it was possible to reduce the mean physical dose to the contralateral hippocampus planning-at-risk volume by 56.8% compared to standard treatment plan prepared without prospective sparing of the hippocampus (15.8 Gy vs. 36.6 Gy). the oar seafood grille 264 west ave patchogue