Hippocampus sparing contouring

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August undefined, 2024

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 56.8% compared to standard treatment plan prepared without prospective sparing of the hippocampus (15.8 Gy vs. 36.6 Gy). WebbNational Center for Biotechnology Information

Development of a contouring guide in three different head

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 … WebbWe explain how to contour the hippocampus on axial T1 echo sequence magnetic resonance images with intravenous gadolinium. Results: Step 2: Contour inferiorly … cheap way to heat garage

Optimization of hippocampus sparing during whole brain

WebbWe explain how to contour the hippocampus on axial T1 echo sequence magnetic resonance images with intravenous gadolinium. Results: Step 1: Find the slice where … WebbSparing the hippocampus during cranial irradiation poses important technical challenges with respect to contouring and treatment planning. Herein we report our preliminary … 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 … cycleworks roswell ga

RapidPlan hippocampal sparing whole brain model version …

Hippocampal Contouring: A Contouring Atlas for RTOG 0933

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 … Webb18 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. cycleworkssanitation.comWebb16 maj 2024 · Contouring was performed on axial images, in clinical condition. Coronal and sagittal projections were also used to check the appropriateness of the … cycle works sanitation reviews

"WebbThe most problematic area of hippocampal contouring is the posterior horn of the lateral ventricle. Training in the manual contouring of the hippocampus during HS-BRT treatment planning under... " - Hippocampus sparing contouring

Hippocampus sparing contouring

Optimization of hippocampus sparing during whole brain

WebbRed: 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 … 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 …

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Webb14 feb. 2024 · Hippocampal contouring and HA-WBRT planning directives have been previously described, 11, 13 with bilateral hippocampal contours manually generated on the fused thin-slice magnetic resonance imaging (MRI)-computed tomography image set and expanded by 5 mm to generate the HA region. 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 …

Webb12 aug. 2024 · The NVALT11 trial investigated PCI without hippocampal sparing in patients with non–small-cell lung cancer and showed a higher percentage of physician-rated neurocognitive impairment in the PCI arm compared with the observation arm. 9 On the other hand, the multicenter randomized phase III HA-PCI trial did not support a … 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 …

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 … 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 …

WebbHippocampus avoidance (HA) WBRT may help to mitigate these issues by delaying the decline in neurocognitive function. RTOG 0933 is a phase II clinical trial aimed at HA-WBRT for patients with metastatic brain lesions. Recently published results from this study showed significant benefit in preserving short-term memory function for these patients.

http://amos3.aapm.org/abstracts/pdf/77-22550-313436-91048.pdf cycleworks sanitation reviews gaWebb30 dec. 2024 · To streamline workflow, we evaluated MRI-atlas based auto-contouring of the hippocampus generated in Elements Treatment Planning System (TPS) compared … cycle works sanitation stockbridgeWebbHippocampal contouring was performed according to the Radiation Therapy Oncology Group (RTOG) 0933 protocol and the work of Chera et al. on axial images, sequentially … cycle works rockhamptonWebbAAPM cycle works sanitation woodstock gaWebb9 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 … cycle works southWebb16 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. cycle works sanitation pricesWebb30 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 … cycle works sanitation - ga