Results 51 to 60 of about 85,512 (248)

Current Practices and Clinical Implementation of Electronic Portal Imaging Device-based Dosimetry in Indian Radiotherapy Centres: A National Survey

Journal of Medical Physics
Purpose: This study aims to assess the current prevalence, utilization patterns, and operational challenges of electronic portal imaging device (EPID)-based dosimetry systems in Indian radiotherapy centres. Materials and Methods: A multiple-choice survey
Raghavendra Hajare, Rohit Avinash Vadgaonkar, Shanmukhappa B. Kaginelli, Man Gobinda Chowdhury, Debasish Sahoo, Shrikant Kale, Ravi Teja Miriyala, Umesh Mahantshetty   +7 more
doaj   +1 more source

Integrating plan complexity and dosiomics features with deep learning in patient-specific quality assurance for volumetric modulated arc therapy

Radiation Oncology, 2023
Purpose To investigate the feasibility and performance of deep learning (DL) models combined with plan complexity (PC) and dosiomics features in the patient-specific quality assurance (PSQA) for patients underwent volumetric modulated arc therapy (VMAT).
Ce Han, Ji Zhang, Bing Yu, Haoze Zheng, Yibo Wu, Zhixi Lin, Boda Ning, Jinling Yi, Congying Xie, Xiance Jin   +9 more
doaj   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Quality assurance of 3D-printed patient specific anatomical models: a systematic review

3D Printing in Medicine
Background The responsible use of 3D-printing in medicine includes a context-based quality assurance. Considerable literature has been published in this field, yet the quality of assessment varies widely.
Martin Schulze, Lukas Juergensen, Robert Rischen, Max Toennemann, Gregor Reischle, Jan Puetzler, Georg Gosheger, Julian Hasselmann   +7 more
doaj   +1 more source

Reduction of systematic dosimetric uncertainties in volumetric modulated arc therapy triggered by patient-specific quality assurance

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Dosimetric patient-Specific Quality Assurance (PSQA) data contain in addition to cases with alerts, many cases without alerts.
Anton Mans, Roel Rozendaal, Tomas Janssen, Eugène Damen, Jochem Kaas, Anke van Mourik, Ben Mijnheer   +6 more
doaj   +1 more source

Impact of Irradiation Field Aperture Controller Settings on Patient-specific Quality Assurance

Japanese Journal of Radiological Technology, 2022
The aperture shape controller (ASC) is a tool on a radiation therapy planning system to reduce complexity by increasing the aperture size of multileaf collimator (MLC). The purposes of this study were to clarify the effect of the dose index on the treatment plan when the intensity of ASC is changed and then to clarify the effect on the verification ...
Hiroyuki, Nakamura, Tetsuro, Tamamoto, Takaaki, Tooyama, Ryo, Iida, Shougo, Yamamoto, Rina, Hirohashi   +5 more
openaire   +3 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Reduction of patient specific quality assurance through plan complexity metrics for VMAT plans with an open-source TPS script

Zeitschrift für Medizinische Physik
Purpose: Volumetric modulated arc therapy (VMAT) is a widespread technique for the delivery of normo-fractionated radiation therapy (NFRT) and stereotactic body radiation therapy (SBRT).
Klara Uher, Stefanie Ehrbar, Stephanie Tanadini-Lang, Riccardo Dal Bello   +3 more
doaj   +1 more source

Patient-Specific Quality Assurance Using a 3D-Printed Chest Phantom for Intraoperative Radiotherapy in Breast Cancer

Frontiers in Oncology, 2021
This study aims to confirm the usefulness of patient-specific quality assurance (PSQA) using three-dimensional (3D)-printed phantoms in ensuring the stability of IORT and the precision of the treatment administered.
Yeonho Choi, Ik Jae Lee, Kwangwoo Park, Kyung Ran Park, Yeona Cho, Jun Won Kim, Ho Lee   +6 more
doaj   +1 more source