Results 31 to 40 of about 557,652 (262)

The Dosimetric Performance of Volumetric Modulated Arc Therapy and Intensity Modulated Radiation Therapy in the Treatment of Locally Advanced Laryngeal Cancer [PDF]

Middle East Journal of Cancer
Background: This study aims to compare the performance of intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) in treating laryngeal cancer.Method: In this retrospective dosimetric study, 15 patients diagnosed with ...
Firas Khater, Ehab Attalla, Wael Elshemey, Haitham Mohammed   +3 more
doaj   +1 more source

Dose–Volume Constraints fOr oRganS At risk In Radiotherapy (CORSAIR): An “All-in-One” Multicenter–Multidisciplinary Practical Summary

Current Oncology, 2022
Background: The safe use of radiotherapy (RT) requires compliance with dose/volume constraints (DVCs) for organs at risk (OaRs). However, the available recommendations are sometimes conflicting and scattered across a number of different documents ...
Silvia Bisello, Savino Cilla, Anna Benini, Raffaele Cardano, Nam P. Nguyen, Francesco Deodato, Gabriella Macchia, Milly Buwenge, Silvia Cammelli, Tigeneh Wondemagegnehu, A. F. M. Kamal Uddin, Stefania Rizzo, Alberto Bazzocchi, Lidia Strigari, Alessio G. Morganti   +14 more
doaj   +1 more source

Organ At Risk Segmentation with Multiple Modality

CoRR, 2019
With the development of image segmentation in computer vision, biomedical image segmentation have achieved remarkable progress on brain tumor segmentation and Organ At Risk (OAR) segmentation. However, most of the research only uses single modality such as Computed Tomography (CT) scans while in real world scenario doctors often use multiple modalities
Kuan-Lun Tseng, Winston H. Hsu, Chun-Ting Wu, Ya-Fang Shih, Fan-Yun Sun   +4 more
openaire   +2 more sources

Organ Transplantation, Risks☆

, 2008
Viruses are among the most common causes of opportunistic infection after solid organ and hematopoietic stem cell transplantation (SOT and HSCT). Viral infection is associated with both direct (invasive disease) and indirect (immune modulation) effects affecting susceptibility to other infections and promoting allograft rejection.
Kotton, C.N., Kuehnert, M.J., Fishman, J.A.   +2 more
openaire   +1 more source

Fast stereotactic radiosurgery planning using patient-specific beam angle optimization and automation

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Linac-based stereotactic radiosurgery (SRS) planning for multi-metastatic cases is a complex and intensive process. A manual planning strategy starts with a template-based set of beam angles and applies modifications though a ...
Thomas D. Mann, Kundan S. Thind, Nicolas P. Ploquin   +2 more
doaj   +1 more source

High-dose re-irradiation of intracranial lesions – Efficacy and safety including dosimetric analysis based on accumulated EQD2Gy dose EQD calculation

Clinical and Translational Radiation Oncology, 2021
Introduction: The use of cranial re-irradiation is growing with improving overall survival and the advent of high-precision radiotherapy techniques. Still the value of re-irradiation needs careful evaluation regarding safety and efficacy.
I. Stiefel, C. Schröder, S. Tanadini-Lang, I. Pytko, E. Vu, R.J. Klement, M. Guckenberger, N. Andratschke   +7 more
doaj   +1 more source

Comparison of Organs at Risk Dose in Conventional (2-Dimensional) and Conformal (3-Dimensional) Radiotherapy of Seminoma

مجله دانشکده پزشکی اصفهان, 2018
مقدمه: هدف از انجام این مطالعه، پیش‌بینی و مقایسه‌ی توزیع دز در اعضای حیاتی سالم در پرتودرمانی سرطان بیضه از نوع سمینومای مرحله‌ی 1 برای دز یکسان به حجم هدف در دو روش دو بعدی (2 Dimensional) مرسوم و سه ‌بعدی (3 Dimensional) تطبیقی بود.
Hamid Ghaznavi, Zainab Salehi, Hamid Emami, Parvaneh Shokrani   +3 more
doaj   +1 more source

Interobserver variability in organ at risk delineation in head and neck cancer

Radiation Oncology, 2021
Background In radiotherapy inaccuracy in organ at risk (OAR) delineation can impact treatment plan optimisation and treatment plan evaluation. Brouwer et al.
J. van der Veen, A. Gulyban, S. Willems, F. Maes, S. Nuyts   +4 more
doaj   +1 more source

Geometric and dosimetric evaluation of deep learning-based organs at risk auto-segmentation for rectal cancer

Fushe yanjiu yu fushe gongyi xuebao, 2022
To evaluate the clinical applicability of deep learning based auto-segmentation of organs at risk (OARs) based on geometric and dosimetric indices. In this study, a total of 35 patients with rectal cancer who received radiotherapy in the Fudan University
GUO Hongbo, WANG Jiazhou, YANG Cui, XIA Xiang, HU Weigang   +4 more
doaj   +1 more source

Dosimetric Impact of the Positional Imaging Frequency for Hypofractionated Prostate Radiotherapy – A Voxel-by-Voxel Analysis

Frontiers in Oncology, 2020
BackgroundTo investigate deviations between planned and applied treatment doses for hypofractionated prostate radiotherapy and to quantify dosimetric accuracy in dependence of the image guidance frequency.MethodsDaily diagnostic in-room CTs were carried ...
Mona Splinter, Mona Splinter, Ilias Sachpazidis, Ilias Sachpazidis, Tilman Bostel, Tilman Bostel, Tilman Bostel, Tobias Fechter, Tobias Fechter, Constantinos Zamboglou, Constantinos Zamboglou, Christian Thieke, Oliver Jäkel, Oliver Jäkel, Peter E. Huber, Peter E. Huber, Peter E. Huber, Jürgen Debus, Jürgen Debus, Jürgen Debus, Dimos Baltas, Dimos Baltas, Nils H. Nicolay, Nils H. Nicolay, Nils H. Nicolay, Nils H. Nicolay   +25 more
doaj   +1 more source