Results 31 to 40 of about 14,390 (207)

The Optimal Choice of Technique for Stereotactic Radiosurgery—A LINAC-Based Dosimetric Study between DCA, DCA-SSO, DCA-SSO-VDR, and VMAT

Asian Journal of Oncology, 2022
Introduction Advanced radiation therapy delivery techniques require greater understanding of various planning sequences and methods. The aim of this study is to determine a class solution that finds the best possible technique to deliver for stereotactic
Ramya Venugopal, Sowmya Narayanan S., Richa Tiwari, Geeta S. Narayanan, Bhaskar Vishwanathan   +4 more
doaj   +1 more source

Multicriteria optimization informed VMAT planning [PDF]

Medical Dosimetry, 2014
We developed a patient-specific volumetric-modulated arc therapy (VMAT) optimization procedure using dose-volume histogram (DVH) information from multicriteria optimization (MCO) of intensity-modulated radiotherapy (IMRT) plans. The study included 10 patients with prostate cancer undergoing standard fractionation treatment, 10 patients with prostate ...
Huixiao, Chen, David L, Craft, David P, Gierga   +2 more
openaire   +2 more sources

Total Workload for Radioactive Facilities with Volumetric Modulated Arc Treatment

Brazilian Journal of Radiation Sciences, 2019
In recent years, there have been major changes in radiotherapy, particularly in dose delivery for treatments using the techniques of Three-Dimensional Conformal Radiation Therapy (3D-CRT), Intensity-Modulated Radiation Therapy (IMRT) and Volumetric ...
Juraci Passos Reis, Victor Gabriel Alves, Leandro Rodrigues Fairbanks   +2 more
doaj   +1 more source

Dosimetric Comparison of Noncoplanar VMAT Without Rotating the Patient Couch Versus Conventional Coplanar/Noncoplanar VMAT for Head and Neck Cancer: First Report of Dynamic Swing Arc

Advances in Radiation Oncology
Purpose: This retrospective planning study aimed to verify the usefulness of a clinically available method, dynamic swing arc (DSA), a noncoplanar volumetric modulated arc therapy (VMAT) technique, of the new accelerator OXRAY for head and neck squamous ...
Kouta Hirotaki, MS, Kento Tomizawa, MD, PhD, Satoe Kitou, BS, Shunta Jinno, MS, Shunsuke Moriya, PhD, Takeshi Fujisawa, MD, Sadamoto Zenda, MD, PhD, Takeji Sakae, PhD, Masashi Ito, BS   +8 more
doaj   +1 more source

Antidepressant Misuse in Esports: A Review of Pharmacology, Adverse Effects, Pharmacokinetics and Biomatrix‐Based Detection for Anti‐Doping Applications

Drug Testing and Analysis, EarlyView.
This review highlights the misuse of antidepressants as potential cognitive‐enhancing agents in Esports. Despite pharmacological effects that overlap with those of psychostimulants, antidepressants remain an under‐recognised source of doping in Esports.
Kassim Ali Salum, Shao‐Hsin Hung, Meng‐Tsang Hsieh, Mei‐Chich Hsu, William Chih‐Wei Chang   +4 more
wiley   +1 more source

The β integrin modulates serotonin sensitivity via NPxY motifs to regulate egg laying and mechanosensation behaviors in Caenorhabditis elegans

Developmental Dynamics, EarlyView.
Abstract Background Integrin is an αβ heterodimeric receptor to the extracellular matrix; its binding to the matrix recruits focal adhesions to two NPxY motifs, the tyrosine phosphorylation sites in the cytoplasmic domain. Studies found that replacing tyrosines (Y) with phenylalanines (F) in the motif of β1 integrin displayed little developmental or ...
Josh Haram Bumm, Daniel Dogeon Lee, Zhongqiang Qiu, Angela Haeun Choi, Meghana Kolluri, Michael J. Olsen, Lianzijun Wang, Myeongwoo Lee   +7 more
wiley   +1 more source

Dosimetric Evaluation Study of 10-MV FFF Used in SBRT for Lung Tumours

East European Journal of Physics, 2023
Purpose: The objective of this research was to conduct a comparative and dosimetric analysis of three different radiotherapy techniques used in lung stereotactic body radiotherapy (SBRT), the three-dimensional conformal radiotherapy (3DCRT), intensity ...
Mohamed I. Soliman, Wahib M. Attia, Khaled M. Elshahat   +2 more
doaj   +1 more source

Predominance of In‐Field Recurrence After Radiotherapy for Sinonasal Cancer: A Single‐Center Retrospective Study

Head &Neck, EarlyView.
ABSTRACT Background Sinonasal malignancies (SNM) are rare, heterogeneous tumors with poor prognosis. There is an unmet need to improve treatment outcomes. Despite advances in imaging and molecular classification, optimal curative radiotherapy (RT) strategies remain undefined.
M. de Ridder, L. J. van de Velde, T. de Bie, R. van Noortwijk, C. P. J. Raaijmakers, E. H. Voormolen, W. W. Braunius, R. de Bree, G. E. Breimer, L. A. Devriese, E. J. Smid, J. A. Rijken   +11 more
wiley   +1 more source

Evaluation of dosimetric effect caused by slowing with multi-leaf collimator (MLC) leaves for volumetric modulated arc therapy (VMAT)

Radiology and Oncology, 2016
This study is to report 1) the sensitivity of intensity modulated radiation therapy (IMRT) QA method for clinical volumetric modulated arc therapy (VMAT) plans with multi-leaf collimator (MLC) leaf errors that will not trigger MLC interlock during beam ...
Xu Zhengzheng, Wang Iris Z., Kumaraswamy Lalith K., Podgorsak Matthew B.   +3 more
doaj   +1 more source

Incidence and Site‐Specific Risk Factors of Jaw Osteoradionecrosis for Head and Neck Patients in the IMRT/VMAT Era: Evidence From a Large, Hospital‐Based Cohort

Head &Neck, EarlyView.
ABSTRACT Purpose Osteoradionecrosis (ORN) of the jaw remains a serious late complication of head and neck cancer (HNC) radiotherapy. Although intensity‐modulated radiotherapy (IMRT) and volumetric‐modulated arc radiotherapy (VMAT) are expected to reduce ORN risk, large real‐world data in the modern era are limited.
Fang‐Yu Wu, Hui‐Hsin Ko, Hsiang‐Fong Kao, Shih‐Jung Cheng   +3 more
wiley   +1 more source