Results 51 to 60 of about 43,614 (295)

A preliminary study on a multi-resolution-level inverse planning algorithm for Gamma Knife radiosurgery [PDF]

, 2019
Manual forward planning for GK radiosurgery is complicated and time-consuming, particularly for cases with large or irregularly shaped targets. Inverse planning eases GK planning by solving an optimization problem. However, due to the vast search space, most inverse planning algorithms have to decouple the planning process to isocenter preselection and
arxiv   +1 more source

Single‐fraction prostate‐specific membrane antigen positron emission tomography‐ and multiparametric magnetic resonance imaging‐guided stereotactic body radiotherapy for prostate cancer local recurrences

BJU International, Volume 131, Issue 1, Page 101-108, January 2023., 2023
Objective To analyse the efficacy and safety of focal prostate‐specific membrane antigen positron emission tomography (PSMA‐PET)‐ and multiparametric magnetic resonance imaging (mpMRI)‐guided single‐fraction stereotactic body radiotherapy (SBRT) for the treatment of prostate cancer (PCa) local recurrences.
Felix Ehret, Theresa Hofmann, Christoph Fürweger, Markus Kufeld, Michael Staehler, Alexander Muacevic, Alfred Haidenberger   +6 more
wiley   +1 more source

The Potential Role of Intensity-Modulated Proton Therapy in Hepatic Carcinoma in Mitigating the Risk of Dose De-Escalation

Technology in Cancer Research & Treatment, 2020
Purpose: To investigate the role of intensity-modulated proton therapy (IMPT) for hepatocellular carcinoma (HCC) patients to be treated with stereotactic body radiation therapy (SBRT) in a risk-adapted dose prescription regimen.
Luca Cozzi PhD, Tiziana Comito MD, Mauro Loi MD, Antonella Fogliata MSc, Ciro Franzese MD, Davide Franceschini MD, Elena Clerici MD, Giacomo Reggiori MSC, Stefano Tomatis MSc, Marta Scorsetti MD   +9 more
doaj   +1 more source

Effects of cardiac motion on dose distribution during stereotactic arrhythmia radioablation treatment: A simulation and phantom study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi, Takeshi Kamomae, Fumitaka Kawabata, Kuniyasu Okudaira, Mariko Kawamura, Shunichi Ishihara, Shinji Naganawa   +6 more
wiley   +1 more source

The use of cannabis as an antiepileptic treatment in Mexico: A review, bioethical analysis, discussion and position of the Hospital General de México Epilepsy Clinic

Revista Médica del Hospital General de México, 2016
In Mexico and the United States of America (USA), a debate was recently opened on the use of some cannabis extracts as anticonvulsive drugs. Given the broad influence that social networks and the media have on the general population, it is worth ...
M. Kalkach-Aparicio, M. Cuéllar-Herrera, E.L. Flores-Ramírez, P. Ruíz-Gadea, L. Medina-Osti, D. Trejo-Martínez, F. Velasco, G. Aguado, A.L. Velasco, G. Gorian-Montealegre   +9 more
doaj   +1 more source

Impact of enhanced leaf model on dose calculation accuracy in single‐isocenter multitarget stereotactic radiosurgery treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Single‐isocenter multitarget (SIMT) radiosurgery has become increasingly popular as advancement in planning and delivery systems have made this approach clinically viable. With targets varying in size and distance from isocenter, SIMT plans are highly complex with dynamic multileaf collimator (MLC) motion.
Hem Moktan, Hongyu Jiang, H. Harold Li, Kenny Guida   +3 more
wiley   +1 more source

Results of Gamma Knife Radiosurgery in Acromegaly

International Journal of Endocrinology, 2012
Objective. Single-session radiosurgery with Gamma Knife (GK) may be a potential adjuvant treatment in acromegaly. We analyzed the safety and efficacy of GK in patients who had previously received maximal surgical debulking at our hospital. Methods.
Alberto Franzin, Giorgio Spatola, Marco Losa, Piero Picozzi, Pietro Mortini   +4 more
doaj   +1 more source

Substantially elevated serum glutamate and CSF GOT-1 levels associated with cerebral ischemia and poor neurological outcomes in subarachnoid hemorrhage patients

Scientific Reports, 2023
Brain injury and cerebral vasospasm during the 14 days after the subarachnoid hemorrhage (SAH) are considered the leading causes of poor outcomes.
Silvia Snider, Luigi Albano, Filippo Gagliardi, Stefano Comai, Francesca Roncelli, Pierfrancesco De Domenico, Edoardo Pompeo, Pietro Panni, Nicole Bens, Maria Rosa Calvi, Pietro Mortini, Angela Ruban   +11 more
doaj   +1 more source

Deep Learning Based Segmentation of Various Brain Lesions for Radiosurgery [PDF]

arXiv, 2020
Semantic segmentation of medical images with deep learning models is rapidly developed. In this study, we benchmarked state-of-the-art deep learning segmentation algorithms on our clinical stereotactic radiosurgery dataset, demonstrating the strengths and weaknesses of these algorithms in a fairly practical scenario.
arxiv  

A Multiobjective Approach for Sector Duration Optimization in Stereotactic Radiosurgery Treatment Planning [PDF]

arXiv, 2021
Sector duration optimization (SDO) is a problem arising in treatment planning for stereotactic radiosurgery on Gamma Knife. Given a set of isocenter locations, SDO aims to select collimator size configurations and irradiation times thereof such that target tissues receive prescribed doses in a reasonable amount of treatment time, while healthy tissues ...
arxiv