Results 101 to 110 of about 6,218,792 (246)

Assessment of Effective Dose Associated with Coronary Computed Tomography Angiography in Isfahan Province, Iran

Journal of Medical Signals and Sensors, 2018
Computed tomography coronary angiography (CTCA) has generated a great interest over the past two decades, due to its high diagnostic accuracy and efficacy in the assessment of patients having coronary artery disease.
Mohammadbagher Tavakoli, Reihane Faraji, Zahra Alirezaei, Zohre Nateghian   +3 more
doaj  

Evaluation of the Dose Index using Cone-Beam Computed Tomography for Pediatric Patients

Medical Radiology and radiation safety, 2018
Purpose: Cone-beam computed tomography (CBCT) is an indispensable procedure for accurate patient positioning during radiation therapy (RT) in many clinical cases. However, the patients get an additional dose using CBCT. This dose is neither therapeutic nor diagnostic.
A. Nechesnyuk, V. Belyaev, K. Galich, A. Loginova, A. Lisovskaya   +4 more
openaire   +1 more source

Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias, Federica Avantaggiato, Gianni Pezzoli, Andrea Canessa   +3 more
wiley   +1 more source

Quantitative ultrasound computed tomography imaging of PAGAT radiation dosimetry gel [PDF]

, 2013
This research developed and scientifically validated a new ultrasound transmission computed tomography system with the aim of quantitative assessment of a polymer gel dosimeter including dose response verification of ultrasonic parameters of attenuation,
Khoei, Shadi
core  

Integrated PANoptosis Profiling Identifies Immunosuppressive Subtypes and a Prognostic Signature With Functional Validation of MLKL in Glioblastoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The prognosis of glioblastoma (GBM) remains highly unfavorable, largely due to high tumor heterogeneity and an immunosuppressive microenvironment. However, the functional role of PANoptosis in this context is poorly understood. Methods Patients were stratified via K‐means clustering. A risk score model was constructed using prognosis‐
Langfei Tian, Minghui Zhao, Yuanbo Hu, Kaiyue Wang, Haiguang Liu, Zetong Bai, Kebin Zheng   +6 more
wiley   +1 more source

Obesity: new insight into the anthropometric classification of fat distribution shown by computed tomography [PDF]

, 1985
Twenty eight women presenting for routine computed tomography had their waist, hip, and thigh circumferences measured. The ratio of the area of intra-abdominal fat to the area of subcutaneous fat shown in the computed tomogram taken at the umbilical ...
Ashwell, M., Cole, T.J., Dixon, A.K.
core  

Assessment of Volumetric Computed Tomography Dose Index (CTDIvol) for selected computed tomography scanners in Uganda

Abstract The Atomic Energy Council conducted routine inspections on 42 facilities with Computed Tomography (CT) scanners in Uganda to verify the compliance of their CTDIvol with the established regulatory machine performance standards. The findings of the inspections revealed that most scanners complied with the recommended regulatory dose ...
Wellen Rukundo, Lynn Ninsiima, Natharius Nimbashabira, Noah Deogratias Luwalira   +3 more
openaire   +1 more source

Assessment of computed tomography dose index (CTDI) using the platform GEANT4/GATE

Perspectives in Science, 2019
Abstract Absorbed dose during a CT exam can be estimated by the computed tomography dose index (CTDI). The aim of this study is to validate a simulated CTDI with measured data for a 16-slice CT system. To measure the CTDI we have used an ion chamber, electrometer and two Polymethylmethacrylate (PMMA) phantoms (head and body). GATE (GEANT4 Application
M. Mkimel, M.R. Mesradi, R. El Baydaoui, Y. Toufique, Z. Aitelcadi, A. El Kharrim, A. Hilali   +6 more
openaire   +1 more source

Validation of a Cellular Imaging‐Based Method as a Potential Biomarker for SPG4 Hereditary Spastic Paraplegia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Hereditary Spastic Paraplegia (HSP) comprises a group of rare genetic diseases characterized by length‐dependent axonal degeneration of the corticospinal tracts and dorsal columns, whose main clinical feature is spastic gait. Pathogenic variants in the SPG4 gene cause Spastic Paraplegia Type 4 (SPG4‐HSP), the most common form of HSP.
Gaia Fattorini, Valerio Licursi, Gianmarco Dalla Zanna, Flavio Dal Canto, Melissa Barghigiani, Nunzio Setola, Salvatore Rossi, Antonio Funcis, Filippo M. Santorelli, Gabriella Silvestri, Carlo Casali, Francesca Sardina, Cinzia Rinaldo   +12 more
wiley   +1 more source

Results from group comparison of radiation dose (unpaired t-test).

, 2014
Data are means±standard deviations.CDTI = Computed Tomography Dose Index (mGy); DLP = Dose Length Product (mGy*cm); ED = estimated effective dose (mSv).
Sylvia Unterhumer (576235), Richard Nolz (576234), Christian Loewe (576239), Rüdiger Schernthaner (576237), Veronika Schöpf (475893), Michael Weber (134225), Florian Wolf (576238), Christina Plank (576236), Dietrich Beitzke (576233)   +8 more
core   +1 more source