Results 111 to 120 of about 24,413 (219)

Accelerated and standardized commissioning of a robotic RadioSurgery system using a hybrid golden beam data model

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background The CyberKnife™ system requires extensive beam data acquisition across multiple collimation systems. The CyberComm™ framework integrates a linac output tuning procedure with a hybrid Golden Beam Data (GBD) model to accelerate and standardize CyberKnife commissioning while maintaining dosimetric accuracy.
E. Pantelis, A. Moutsatsos, L. Sideri, P. Archontakis, A. Stergioula   +4 more
wiley   +1 more source

Dosimetric and clinical validation of a high‐density bolus for superficial skin tumors treated with radiotherapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Accurate dose deposition in superficial radiotherapy remains challenging due to the inherent skin‐sparing effect of megavoltage photon beams and difficulties in ensuring bolus conformity. Purpose This study aims to comprehensively evaluate the dosimetric characteristics of the room‐temperature‐malleable high‐density bolus, to ...
Jonathan Dadoun, Ann Van Esch, Noemie Litrowski, Carine Lefrancois‐Clement, Erwan Luce, Alexis Thelie, Nassima Delhoumi, Andrea Feuillet, Nesrine Zemman, Romain Mallet, Renata Pereira, Laurent Martin, Paul Gangloff, Christophe Moure, Luc Ollivier, Paul Lesueur   +15 more
wiley   +1 more source

Pachydermodactyly: A benign mimicker of inflammatory arthritis in a young man. [PDF]

JAAD Case Rep
Chekol TD, Feleke BT.
europepmc   +1 more source

Performance evaluation of a new type of commercial silicon detectors for photon beam dosimetry

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Modern radiotherapy relies on advanced treatment techniques that utilize a large number of small fields, for which maintaining dosimetric accuracy is often challenging. Most vendors have introduced microdetectors suitable for small field dosimetry. Sun Nuclear has developed two silicon diodes with a sensitive volume of 0.35 mm3 that
Indra J. Das, Meisong Ding, George X. Ding   +2 more
wiley   +1 more source

Distinct neurostructural, cognitive, and neuropsychiatric associations of plasma p-tau217, and Aβ42/40 in Parkinson's disease and aging cohorts. [PDF]

Front Aging Neurosci
Fiorenzato E, Cauzzo S, Musso G, Biundo R, Ceolin C, Cosma C, Fogliano CA, Meissner WG, Misenti V, Moz S, Nasi ML, Vianello F, Berri M, Colucci A, Manara R, Montagnana M, Sergi G, Antonini A.   +17 more
europepmc   +1 more source

Assessment of 6MV flattening filter free (FFF) beam commissioning parameters for Versa HD and TrueBeam: A comparison study

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Flattening filter‐free (FFF) beams are increasingly deployed for stereotactic body radiotherapy (SBRT) and stereotactic radiosurgery (SRS). The Elekta Versa HD (VHD) and Varian TrueBeam (TB) are the two most widely used FFF‐capable platforms; however, no prior study has compared their 6 MV FFF commissioning parameters under fully ...
Mustafa K. Al‐Aseebee, Hussien Mraity, Marco Esposito   +2 more
wiley   +1 more source

Parkinson's disease dementia and hearing impairment, are they related? A UK biobank pilot analysis. [PDF]

Exp Brain Res
Readman MR, Giebel C, Cannon J, Fairman I, Plack CJ.   +4 more
europepmc   +1 more source

Clinical implementation and performance evaluation of a motorized MR‐compatible OCTAVIUS 4D system for SBRT patient‐specific QA on a 1.5 T MR‐LINAC

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Magnetic resonance–guided radiotherapy using 1.5 T MR‐LINAC systems introduces specific constraints for patient‐specific quality assurance (PSQA), requiring MR‐compatible dosimetric devices capable of accurate three‐dimensional dose verification.
Clement Chevillard, Marie Blanchet, Cyrielle Mella, Robin Sauvinet, Rezart Belshi, Ivan Taranenko   +5 more
wiley   +1 more source

Lower synaptic density in mood circuitry underlies depression in Parkinson's disease. [PDF]

Brain Commun
Cayir S, Naganawa M, Volpi T, Ebrahimian Sadabad F, Dias M, Yang Y, Elliott S, Ansari M, Elshahat A, Pittman B, Esterlis I, Nabulsi N, Huang Y, Sanacora G, Comley R, Finnema SJ, Carson RE, Tinaz S, Matuskey D, Holmes SE.   +19 more
europepmc   +1 more source

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

Annals of Clinical and Translational Neurology, Volume 13, Issue 8, Page 1569-1580, August 2026.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown, Giulia Carli, Prabesh Kanel, Stiven Roytman, Jaimie Barr, Nicolaas I. Bohnen, Roger L. Albin   +6 more
wiley   +1 more source