Technical Note: More accurate and efficient segmentation of organs‐at‐risk in radiotherapy with convolutional neural networks cascades
Sign Up to like & getrecommendations! Published in 2019 at "Medical Physics"
DOI: 10.1002/mp.13296
Abstract: PURPOSE Manual delineation of organs-at-risk (OARs) in radiotherapy is both time-consuming and subjective. Automated and more accurate segmentation is of the utmost importance in clinical application. The purpose of this study is to further improve… read more here.
Keywords: cnn cascades; network; neural networks; segmentation ... See more keywords
Effect of bladder distension on doses to organs at risk in Pulsed-Dose-Rate 3D image-guided adaptive brachytherapy for locally advanced cervical cancer.
Sign Up to like & getrecommendations! Published in 2017 at "Brachytherapy"
DOI: 10.1016/j.brachy.2017.06.003
Abstract: PURPOSE To evaluate the impact of bladder distension on doses to organs at risk in patients treated with 3D image-guided adaptive pulsed-dose-rate (PDR) brachytherapy (BT) for locally advanced cervical cancer. METHODS AND MATERIALS Twenty-two patients… read more here.
Keywords: guided adaptive; bladder; bladder distension; organs risk ... See more keywords
Evaluation of a software for automatic delineation of the mammary gland and organs at risk in patients treated for breast cancer in lateral position.
Sign Up to like & getrecommendations! Published in 2020 at "Cancer radiotherapie : journal de la Societe francaise de radiotherapie oncologique"
DOI: 10.1016/j.canrad.2020.03.012
Abstract: PURPOSE OF THE STUDY The purpose of this study was to assess the potential for improvement of routine breast and organs at risk contouring in patients treated in the lateral decubitus position using Workflow Box™… read more here.
Keywords: automatic contouring; breast; breast cancer; organs risk ... See more keywords
[OA040] Quantifying the effect of increased tissue definition on inter-observer variation in contouring of organs at risk in lung cancer patients using motion-compensated imaging
Sign Up to like & getrecommendations! Published in 2018 at "Physica Medica"
DOI: 10.1016/j.ejmp.2018.06.112
Abstract: Purpose The development of 4DCT imaging allows clinicians to account for movement of both the target tumour and organs at risk, although the choice of method of image reconstruction can impact how accurately observers can… read more here.
Keywords: reconstruction; motion; image; motion compensated ... See more keywords
A modality‐adaptive method for segmenting brain tumors and organs‐at‐risk in radiation therapy planning
Sign Up to like & getrecommendations! Published in 2019 at "Medical Image Analysis"
DOI: 10.1016/j.media.2019.03.005
Abstract: &NA; In this paper we present a method for simultaneously segmenting brain tumors and an extensive set of organs‐at‐risk for radiation therapy planning of glioblastomas. The method combines a contrast‐adaptive generative model for whole‐brain segmentation… read more here.
Keywords: organs risk; radiation therapy; brain; method ... See more keywords
Evaluation of the influence of susceptibility-induced magnetic field distortions on the precision of contouring intracranial organs at risk for stereotactic radiosurgery
Sign Up to like & getrecommendations! Published in 2020 at "Physics and Imaging in Radiation Oncology"
DOI: 10.1016/j.phro.2020.08.001
Abstract: Highlights • 45 data sets (18 on a 1.5 T MR and 27 on a 3 T MR) were evaluated for susceptibility induced distortions.• Maximum distortions of up to 1.7 mm were found for organs at risk in… read more here.
Keywords: susceptibility induced; influence susceptibility; induced magnetic; organs risk ... See more keywords
Dual-energy CT for automatic organs-at-risk segmentation in brain-tumor patients using a multi-atlas and deep-learning approach
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-40584-9
Abstract: In radiotherapy, computed tomography (CT) datasets are mostly used for radiation treatment planning to achieve a high-conformal tumor coverage while optimally sparing healthy tissue surrounding the tumor, referred to as organs-at-risk (OARs). Based on CT… read more here.
Keywords: energy; deep learning; atlas deep; multi atlas ... See more keywords
A national study on the inter-observer variability in the delineation of organs at risk in the brain
Sign Up to like & getrecommendations! Published in 2021 at "Acta Oncologica"
DOI: 10.1080/0284186x.2021.1975813
Abstract: Abstract Background The Danish Neuro Oncology Group (DNOG) has established national consensus guidelines for the delineation of organs at risk (OAR) structures based on published literature. This study was conducted to finalise these guidelines and… read more here.
Keywords: organs risk; inter observer; study; delineation ... See more keywords
Stochastic frontier analysis as knowledge-based model to improve sparing of organs-at-risk for VMAT-treated prostate cancer.
Sign Up to like & getrecommendations! Published in 2019 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/ab0b4d
Abstract: Stochastic frontier analysis (SFA) is used as a novel knowledge-based technique in order to develop a predictive model of dosimetric features from significant geometric parameters describing a patient morphology. 406 patients treated with VMAT for… read more here.
Keywords: frontier analysis; prostate cancer; model; stochastic frontier ... See more keywords
Comparison of CBCT and CT in Terms of Dose Value of Organs at Risk In Paranasal Sinus Imaging.
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DOI: 10.1093/rpd/ncac013
Abstract: Irradiated dose to the organs at risk surrounding the paranasal sinuses was compared in cone beam computed tomography (CBCT) and multi spiral computed tomography with respect to the organs' relative positions to the imaging field.… read more here.
Keywords: value organs; dose value; organs risk; field ... See more keywords
Effective Organs-at-Risk Dose Sparing in Volumetric Modulated Arc Therapy Using a Half-Beam Technique in Whole Pelvic Irradiation
Sign Up to like & getrecommendations! Published in 2021 at "Frontiers in Oncology"
DOI: 10.3389/fonc.2021.611469
Abstract: Background Although there are some controversies regarding whole pelvic radiation therapy (WPRT) due to its gastrointestinal and hematologic toxicities, it is considered for patients with gynecological, rectal, and prostate cancer. To effectively spare organs-at-risk (OAR)… read more here.
Keywords: therapy; dose sparing; whole pelvic; vmat ... See more keywords