Results 51 to 60 of about 904 (171)

Pretreatment patient-specific quality assurance prediction based on 1D complexity metrics and 3D planning dose: classification, gamma passing rates, and DVH metrics

Radiation Oncology, 2023
Purpose Highly modulated radiotherapy plans aim to achieve target conformality and spare organs at risk, but the high complexity of the plan may increase the uncertainty of treatment.
Liyuan Chen, Huanli Luo, Shi Li, Xia Tan, Bin Feng, Xin Yang, Ying Wang, Fu Jin   +7 more
doaj   +1 more source

Native Environment Modulates Leaf Size and Response to Simulated Foliar Shade across Wild Tomato Species [PDF]

, 2012
The laminae of leaves optimize photosynthetic rates by serving as a platform for both light capture and gas exchange, while minimizing water losses associated with thermoregulation and transpiration.
Chitwood, Daniel H., Filiault, Daniele L., Headland, Lauren R., Jiménez-Gómez, José M., Kumar, Ravi, Maloof, Julin N., Park, Daniel S., Peng, Jie, Schrager, Amanda V., Sinha, Neelima R.   +9 more
core   +8 more sources

Improved success rate and stability for phase retrieval by including randomized overrelaxation in the hybrid input output algorithm

, 2012
In this paper, we study the success rate of the reconstruction of objects of finite extent given the magnitude of its Fourier transform and its geometrical shape.
A. A. Minkevich, Auslander, Bates, Bauschke, Biermanns, Elser, Elser, Fienup, Fienup, Levi, Marchesini, Marchesini, Martin Köhl, Miao, Miao, Millane, Millane, Minkevich, Minkevich, Minkevich, Minkevich, Pfeifer, Robinson, Seldin, Takajo, Takajo, Tilo Baumbach, Veen, Youla   +28 more
core   +1 more source

Pilot scale validation campaign of gel dosimetry for pre-treatment quality assurance in stereotactic radiotherapy [PDF]

, 2023
Purpose: Complex stereotactic radiotherapy treatment plans require prior verification. A gel dosimetry system was developed and tested to serve as a high-resolution 3D dosimeter for Quality Assurance (QA) purposes.Materials and Methods: A modified ...
Bombardieri, E., Galluccio, F., Gambirasio, A., Hertsyk, V., Liosi, G. M., Locatelli, F., Macerata, E., Magugliani, G., Mariani, M., Marranconi, M., Mossini, E., Salmoiraghi, P., Santi, A., Torri, V., Trombetta, L., Vavassori, V.   +15 more
core   +1 more source

Deep-Learning Dose-Driven Approach to Optimize Patient-Specific Quality Assurance Program in Radiotherapy

Applied Sciences
Background: Radiotherapy (RT) is a cornerstone of cancer treatment, with patient-specific quality assurance (PSQA) being essential for patient safety. However, PSQA can be time-consuming, particularly in high-throughput centers. Machine learning and deep
Lorenzo Spagnoli, Silvia Strolin, Miriam Santoro, Silvia Tomasi, Christian Macis, Ilenia Gabucci, Francesca Bisello, Giuseppe Della Gala, Lidia Strigari   +8 more
doaj   +1 more source

A Modular System for Treating Moving Anatomical Targets With Scanned Ion Beams at Multiple Facilities: Pre-Clinical Testing for Quality and Safety of Beam Delivery

Frontiers in Oncology, 2021
BackgroundQuality management and safety are integral to modern radiotherapy. New radiotherapy technologies require new consensus guidelines on quality and safety.
Michelle Lis, Michelle Lis, Wayne Newhauser, Wayne Newhauser, Marco Donetti, Moritz Wolf, Timo Steinsberger, Timo Steinsberger, Athena Paz, Marco Durante, Marco Durante, Christian Graeff   +11 more
doaj   +1 more source

Penilaian Risiko Eksternal (Market dan Lingkungan) Berdasarkan Kerangka ISO 31000: 2018 yang Terintegrasi ISO 9001: 2015 [PDF]

, 2023
Pengelolaan risiko pasar sangat erat hubungannya dengan fakta bahwa penjualan sangat bergantung pada bisnis industri tekstil yang dinamis seperti pengaruh lingkungan, dan segmentasi pasar yang berubah-ubah.
Andrawina, Luciana, Chumaidiyah, Endang, Nurhadi, Erik   +2 more
core   +2 more sources

Echo State Queueing Network: a new reservoir computing learning tool

, 2012
In the last decade, a new computational paradigm was introduced in the field of Machine Learning, under the name of Reservoir Computing (RC). RC models are neural networks which a recurrent part (the reservoir) that does not participate in the learning ...
Basterrech, Sebastián, Rubino, Gerardo
core   +3 more sources

Professional practice changes in radiotherapy physics during the COVID-19 pandemic. [PDF]

, 2021
Background and purpose The COVID-19 pandemic has imposed changes in radiotherapy (RT) departments worldwide. Medical physicists (MPs) are key healthcare professionals in maintaining safe and effective RT.
Aznar, Marianne C, Bertholet, Jenny, Clark, Catharine H, Garibaldi, Cristina, Georg, Dietmar, Gershkevitsh, Eduard, Heijmen, Ben, Hurkmans, Coen, Jornet, Nuria, Muren, Ludvig, Redalen, Kathrine Røe, Schwarz, Marco, Siebert, Frank-André, Thorwarth, Daniela, Thwaites, David, Van Elmpt, Wouter, Verellen, Dirk   +16 more
core   +7 more sources

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