Results 101 to 110 of about 1,136,279 (386)

A Python package for fast GPU‐based proton pencil beam dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Open‐source GPU‐based Monte Carlo (MC) proton dose calculation algorithms provide high speed and unparalleled accuracy but can be complex to integrate with new applications and remain slower than GPU‐based pencil beam (PB) methods, which sacrifice some physical accuracy for sub‐second plan calculation.
Mahasweta Bhattacharya, Calin Reamy, Heng Li, Junghoon Lee, William T. Hrinivich   +4 more
wiley   +1 more source

Phase I/II trial evaluating concurrent carbon-ion radiotherapy plus chemotherapy for salvage treatment of locally recurrent nasopharyngeal carcinoma

Chinese Journal of Cancer, 2016
Background After definitive chemoradiotherapy for non-metastatic nasopharyngeal carcinoma (NPC), more than 10% of patients will experience a local recurrence. Salvage treatments present significant challenges for locally recurrent NPC.
Lin Kong, Jing Gao, Jiyi Hu, Weixu Hu, Xiyin Guan, Rong Lu, Jiade J. Lu   +6 more
doaj   +1 more source

Machine stability and dosimetry for ultra‐high dose rate FLASH radiotherapy human clinical protocol

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The FLASH effect, induced by ultra‐high dose rate (UHDR) irradiations, offers the potential to spare normal tissue while effectively treating tumors. It is important to achieve precise and accurate dose delivery and to establish reliable detector systems, particularly for clinical trials needed to help the clinical transfer of FLASH‐
Patrik Gonçalves Jorge, Reiner Geyer, Rémy Kinj, Luis Schiappacasse, Wendy Jeanneret‐Sozzi, Jean Bourhis, Fernanda Herrera, François Bochud, Claude Bailat, Raphaël Moeckli   +9 more
wiley   +1 more source

Proton pump inhibitors alter the composition of the gut microbiota

Gut, 2015
Objective Proton pump inhibitors (PPIs) are drugs used to suppress gastric acid production and treat GI disorders such as peptic ulcers and gastro-oesophageal reflux.
M. Jackson, Julia Goodrich, Maria-Emanuela Maxan, D. Freedberg, J. Abrams, Angela C. Poole, Jessica L. Sutter, Daphne K. Welter, R. Ley, J. Bell, T. Spector, C. Steves   +11 more
semanticscholar   +1 more source

The preliminary results of proton and carbon ion therapy for chordoma and chondrosarcoma of the skull base and cervical spine

Radiation Oncology, 2019
Purpose To evaluate the short-term outcomes in terms of tumor control and toxicity of patients with skull base or cervical spine chordoma and chondrosarcoma treated with intensity-modulated proton or carbon-ion radiation therapy.
Xiyin Guan, Jing Gao, Jiyi Hu, Weixu Hu, Jing Yang, Xianxin Qiu, Chaosu Hu, Lin Kong, Jiade J. Lu   +8 more
doaj   +1 more source

Particle Beam Radiation Therapy for Adenoid Cystic Carcinoma of the Nasal Cavity and Paranasal Sinuses

Frontiers in Oncology, 2020
Background: Sinonasal adenoid cystic carcinoma (SNACC) presents a challenge to oncologists due to its complex anatomy and poor prognosis. Although radiation therapy, either definitive or adjuvant to surgery, is an important part of the multidisciplinary ...
Weixu Hu, Weixu Hu, Jiyi Hu, Jiyi Hu, Qingting Huang, Qingting Huang, Jing Gao, Jing Gao, Jing Yang, Jing Yang, Xianxin Qiu, Xianxin Qiu, Lin Kong, Lin Kong, Jiade J. Lu, Jiade J. Lu   +15 more
doaj   +1 more source

The leading proton effect in proton-proton collisions

Nuclear Physics B, 1973
Abstract The p spectrum data in the range s = 28 to s = 1995 are described with the triple Regge formula. The behaviour of the various couplings at small | t | is explored. It is found that the non-scaling terms, at s ≅ 400 GeV 2 remove the turnover expected if the triple pomeron vanishes at t = 0.
J. Gabarro, C. Pajares
openaire   +2 more sources

Progressive Myoclonus Epilepsy: Distinctive MRI Changes in Cerebellar and Motor Networks

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Progressive myoclonus epilepsy (PME) is a rare generalized epilepsy syndrome with a well‐characterized genetic basis. The brain networks that are affected to give rise to the distinctive symptoms of PME are less well understood. Methods Eleven individuals with PME with a confirmed genetic diagnosis and 22 controls were studied.
Jillian M. Cameron, Remika Mito, Samuel F. Berkovic, Graeme D. Jackson   +3 more
wiley   +1 more source

Complications of Proton Pump Inhibitor Therapy.

Gastroenterology, 2017
Safety issues associated with proton pump inhibitors (PPIs) have recently attracted widespread media and lay attention. Gastroenterologists are frequently asked about the appropriateness of PPI therapy for specific patients.
M. Vaezi, Yu-Xiao Yang, C. Howden
semanticscholar   +1 more source

Comparative clinical evaluation of atlas and deep-learning-based auto-segmentation of organ structures in liver cancer

Radiation Oncology, 2019
Background Accurate and standardized descriptions of organs at risk (OARs) are essential in radiation therapy for treatment planning and evaluation. Traditionally, physicians have contoured patient images manually, which, is time-consuming and subject to
Sang Hee Ahn, Adam Unjin Yeo, Kwang Hyeon Kim, Chankyu Kim, Youngmoon Goh, Shinhaeng Cho, Se Byeong Lee, Young Kyung Lim, Haksoo Kim, Dongho Shin, Taeyoon Kim, Tae Hyun Kim, Sang Hee Youn, Eun Sang Oh, Jong Hwi Jeong   +14 more
doaj   +1 more source