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Contouring the hippocampus

WebJul 1, 2024 · Skin (“Skin”) The skin is the volume defined by the body contour (outer border) and the body contour cropped by 5 mm (inner border), both created on the CT. This structure is contoured automatically (and checked thereafter) using a built-in delineation tool commonly found in treatment planning systems [4], [6], [25]. WebPurpose: Hippocampus contouring for radiotherapy planning is performed on MR image data due to poor anatomical visibility on computed tomography (CT) data. Deep learning methods for direct CT hippocampus auto-segmentation exist, but use MR-based training contours. We investigate if these can be replaced by CT-based contours without loss in …

A Radiation Oncologist’s Guide to Contouring the …

WebApr 8, 2024 · Hippocampal-sparing brain radiotherapy (HS-BRT) in cancer patients results in preservation of neurocognitive function after brain RT which can contribute to patients’ quality of life (QoL). The crucial element in HS-BRT treatment planning is appropriate contouring of the hippocampus. Ten doctors delineated the left and right … WebNov 15, 2010 · Abstract. Purpose: Sparing the hippocampus during cranial irradiation poses important technical challenges with respect to contouring and treatment … towne \u0026 country realty https://euromondosrl.com

Clinical evaluation of RTOG-atlas based contouring, MRI …

WebStep 1: Find the slice where the temporal horn—meaning the most anterior portion of the lateral ventricle—is well visualized; the hippocampus is the gray matter inside the curve of the temporal horn. Step 2: Contour … WebDec 1, 2024 · Contouring of the hippocampi can be challenging and a RTOG contouring atlas was published to aid in their delineation, however, the disparity on manual contours by the radiation oncologists had ... WebApr 13, 2024 · A mis-metabolism of transition metals (i.e., copper, iron, and zinc) in the brain has been recognised as a precursor event for aggregation of Amyloid-β plaques, a pathological hallmark of Alzheimer’s disease (AD). However, imaging cerebral transition metals in vivo can be extremely challenging. As the retina is a known … towne acres educare

Hippocampus Avoidance Whole-brain Radiation Therapy: A

Category:Comparing Hippocampal-Avoidant Whole Brain Radiotherapy …

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Contouring the hippocampus

Hippocampus Definition, Location, Function, & Facts

WebAAPM WebMar 9, 2024 · March 09 2024. NRG-CC009: Phase III Trial of Stereotactic Radiosurgery (SRS) versus Hippocampal-Avoidant Whole Brain Radiotherapy (HA-WBRT) for 10 or fewer Brain Metastases from Small Cell Lung Cancer. The NRG Oncology clinical trial NRG-CC009 is a phase III trial that will be comparing two procedures for patients with 10 or …

Contouring the hippocampus

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WebOct 30, 2024 · Background Whole-brain radiotherapy (WBRT) remains an important treatment for over 200,000 cancer patients in the United States annually. Hippocampal-avoidant WBRT (HA-WBRT) reduces neurocognitive toxicity compared to standard WBRT, but HA-WBRT contouring and planning are more complex and time-consuming than … WebJun 8, 2024 · Whole brain radiation therapy (WBRT) is the standard therapy for multiple brain metastases. However, WBRT has a poor local tumor control and is associated with a decline in neurocognitive function (NCF). Aim of this trial is to assess the efficacy and safety of a new treatment method, the WBRT with hippocampus avoidance (HA) combined …

WebApr 15, 2024 · The physician will contour the hippocampus, and you will need to create a 0.5 CM margin around the hippocampus to create the “Hippocampus + 5mm”. The PTV structure will crop the … WebDec 30, 2024 · To streamline workflow, we evaluated MRI-atlas based auto-contouring of the hippocampus generated in Elements Treatment Planning System (TPS) compared …

WebTreat patients in the immobilization device. • MRI-CT Fusion: – Fuse the 3D-SPGR MRI and the treatment-planning CT. 2 General Principles • Please note that we are not contouring the entire hippocampus, but focusing mostly on the subgranular zone (SGZ) • … WebNational Center for Biotechnology Information

WebApr 8, 2024 · The biggest discrepancies during manual contouring of the hippocampus occur in the area of the horn of the anterior lateral ventricle, while the smallest are in the area of the brain stem [31]. ...

WebMar 31, 2011 · 2. HIPPOCAMPAL CONTOURING CREDENTIALING 3. HA-WBRT TREATMENT PLANNING CREDENTIALING 4. NEUROCOGNTIVE CREDENTIALING 1. Institutional person randomizing this case (Y) 2. Has the Eligibility Checklist been completed? (Y) 3. In the opinion of the investigator, is the patient eligible 4. Date … towne acres church of christ muncie inWebMay 16, 2024 · Contouring Atlas for RTOG 0933 proposed by Gondhi et al. represents a reference tool. In this work the author, reported an example of hippocampal delineation, … towne acres church of christWebJun 8, 2024 · Whole brain radiation therapy (WBRT) is the standard therapy for multiple brain metastases. However, WBRT has a poor local tumor control and is associated with … towne acres church of christ muncie indianaWebThis article presents a step-by-step guide to contouring the hippocampus on axial magnetic resonance images for radiation therapy treatment planning. towne \u0026 country vetWebDec 19, 2024 · Evidence supports that WBRT can cause radiation injury to the hippocampus, which in turn will lead to a decline in neurocognitive function (NCF). ... and surrounding organs-at-risk (OAR) were delineated based on the fused CT–MRI image using the tumor contouring function of the Varian Eclipse radiotherapy treatment planning … towne acres elementarytowne \u0026 country playersWebThe focus of this particular training is the hippocampus in a pediatric patient. Why do we focus on contouring accuracy? Technology continues to advance in the area of … towne \u0026 country veterinary hospital