Results 171 to 180 of about 888,532 (366)

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

Rapid isotropic diffusion mapping without susceptibility artifacts: Whole brain studies using diffusion-weighted single-shot STEAM MR imaging [PDF]

, 2000
U. Nolte, J�rgen Finsterbusch, Jens Frahm   +2 more
openalex   +1 more source

Design and validation of a novel dosimetry phantom for motion management audits

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton, Sabeena Beveridge, Nicholas Hardcastle, Silvio Malfitana, Janaka Madamperuma, Rick Franich   +5 more
wiley   +1 more source

Visual processing deficits in 22q11.2 Deletion Syndrome

NeuroImage: Clinical, 2018
Carriers of the rare 22q11.2 microdeletion present with a high percentage of positive and negative symptoms and a high genetic risk for schizophrenia. Visual processing impairments have been characterized in schizophrenia, but less so in 22q11.2 Deletion
Marjan Biria, Miralena I. Tomescu, Anna Custo, Lucia M. Cantonas, Kun-Wei Song, Maude Schneider, Micah M. Murray, Stephan Eliez, Christoph M. Michel, Tonia A. Rihs   +9 more
doaj  

Color schemes to represent the orientation of anisotropic tissues from diffusion tensor data: application to white matter fiber tract mapping in the human brain [PDF]

, 2000
Sinisa Pajevic, Carlo Pierpaoli
openalex   +1 more source

Learning-based Single-step Quantitative Susceptibility Mapping Reconstruction Without Brain Extraction

, 2019
Quantitative susceptibility mapping (QSM) estimates the underlying tissue magnetic susceptibility from MRI gradient-echo phase signal and typically requires several processing steps.
Cao, Steven, Guan, Xiaojun, Liu, Chunlei, Wei, Hongjiang, Yan, Fuhua, Yeom, Kristen W., Zhang, Yuyao   +6 more
core  

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

Mapping the Mind-Brain Duality to a Digital-Analog Perceptual Duality [PDF]

arXiv
Could the abstract ideas of our minds originate from neuronal interactions within our brains? To address this question, we examine interactions within 'brain-world' (BW) and 'brain-brain' (BB) domains, which represent the brain's physical interactions with its environment and the mental interactions between brains, respectively.
arxiv  

EEG brain mapping of phonological and semantic tasks in Italian and German languages [PDF]

, 2000
Alessandro Angrilli, Christian Dobel, Brigitte Rockstroh, Luciano Stegagno, Thomas Elbert   +4 more
openalex   +1 more source

An investigation into the feasibility and efficacy of stereotactic radiosurgery for 1–3 cm single brain lesions on the ring‐mounted Halcyon LINAC

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose An evaluation of the accuracy, safety, and efficiency of the Halcyon ring delivery system (RDS) for stereotactic radiosurgery (SRS) treatment to relatively small (1–3 cm) brain lesions. Methods After completing the extensive in‐house quality assurance checks including Winston–Lutz test and independent dose verification via MD Anderson ...
Kate Hazelwood, Shane McCarthy, Josh Misa, David Castelvetere, William St. Clair, Damodar Pokhrel   +5 more
wiley   +1 more source