Results 61 to 70 of about 2,071 (173)

Across the stages: a multiscale extension of the generalized stochastic microdosimetric model (MS-GSM2) to include the ultra-high dose rate

open access: yesFrontiers in Physics, 2023
Ultra-high dose rate (UHDR) irradiations with different types of radiation have shown a larger sparing of normal tissue and unchanged tumor control with respect to conventional delivery.
Marco Battestini   +9 more
doaj   +1 more source

Dosimetric characterization of an encapsulated waterproof silicon carbide detector with UHDR electron and proton beams for FLASH radiotherapy

open access: yesPhysics in Medicine and Biology
Silicon carbide (SiC) detectors have been widely demonstrated to be suitable alternative detectors for dosimetry in FLASH radiotherapy, showing radiation hardness and dose-rate independence at the FLASH radiotherapy instantaneous dose rates (IDRs ...
G. Milluzzo   +16 more
semanticscholar   +1 more source

Early Longitudinal Brain Network Changes in Huntington's Disease Before Clinical Motor Onset

open access: yesMovement Disorders, EarlyView.
Abstract Background Longitudinal studies of seed‐based functional connectivity (SBFC) in young adult Huntington's disease gene‐expanded (HDGE) individuals are rare, and none, to our knowledge, have examined adult cohorts decades from predicted clinical motor diagnosis.
Michela Leocadi   +13 more
wiley   +1 more source

Plasma Lipid Remodeling across Preclinical Burden, Disease Onset, and Early Motor Severity in Huntington's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background and Objectives Huntington's disease (HD) evolves silently for years before motor onset, yet the systemic metabolic alterations accompanying cumulative exposure to mutant huntingtin and disease progression remain poorly understood.
Mohamed Bendimerad   +11 more
wiley   +1 more source

Ultra-high dose rate radiotherapy overcomes radioresistance in head and neck squamous cell carcinoma

open access: yesSignal Transduction and Targeted Therapy
Radiotherapy (RT) resistance in head and neck squamous cell carcinoma (HNSCC) significantly hampers local control and patient prognosis. This study investigated the efficacy and molecular mechanisms of high-energy X-ray-based ultra-high dose rate ...
Hong-Shuai Li   +20 more
doaj   +1 more source

A phenomenological model of proton FLASH oxygen depletion effects depending on tissue vasculature and oxygen supply

open access: yesFrontiers in Oncology, 2022
IntroductionRadiation-induced oxygen depletion in tissue is assumed as a contributor to the FLASH sparing effects. In this study, we simulated the heterogeneous oxygen depletion in the tissue surrounding the vessels and calculated the proton FLASH ...
Wei Zou   +15 more
doaj   +1 more source

Neurofilament Light Chain and Mutant Huntingtin Across Huntington's Disease Integrated Staging System Stages in Huntington Disease: A Cross‐Sectional Multimodal Analysis

open access: yesMovement Disorders, EarlyView.
Abstract Background The Huntington's Disease Integrated Staging System (HD‐ISS) provides a framework for staging HD but does not incorporate fluid biomarkers. Objective The aim of this study was to examine neurofilament light chain (NfL) and mutant huntingtin (mHTT) and total tau across HD‐ISS stages and their associations with genetic burden ...
Jesús Pérez‐Pérez   +104 more
wiley   +1 more source

Context‐Dependent Radioenhancement by Platinum Nanoparticles Under Conventional and Ultra‐High Dose‐Rate “FLASH” Radiotherapy

open access: yesSmall, EarlyView.
Overview of the experimental workflow and main findings of the study investigating Pt‐NPs‐mediated radioenhancement under conventional 134 dose‐rate (CONV) and ultrahigh dose‐rate (UHDR) 9 MeV electron irradiation. Pt‐NP distribution and uptake were characterized in 4T1 spheroids and syngeneic tumor models.
Cathyanne Schott   +14 more
wiley   +1 more source

Translating FLASH to the clinic: treatment planning system for a FLASH-compatible dose delivery using a novel x-ray UHDR machine

open access: yesPhysics in Medicine and Biology
Objective. To develop and validate a treatment planning system (TPS) for a novel x-ray ultra-high dose rate (UHDR) system and compare its performance with conventional volumetric modulated arc therapy (VMAT). Approach.
D. Krim   +5 more
semanticscholar   +1 more source

Plastic scintillator-based dosimeters for ultra-high dose rate (UHDR) electron radiotherapy.

open access: yesPhysica medica (Testo stampato)
This paper reports the development of dosimeters based on plastic scintillating fibers imaged by a charge-coupled device camera, and their performance evaluation through irradiations with the electron Flash research accelerator located at the Centro ...
E. Ciarrocchi   +12 more
semanticscholar   +1 more source

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