Results 41 to 50 of about 704,184 (373)

Statistical Uncertainty in Quantitative Neutron Radiography

open access: yes, 2017
We demonstrate a novel procedure to calibrate neutron detection systems commonly used in standard neutron radiography. This calibration allows determining the uncertainties due to Poisson-like neutron counting statistics for each individual pixel of a ...
Antognini, Aldo   +5 more
core   +1 more source

Proton-counting radiography for proton therapy: a proof of principle using CMOS APS technology [PDF]

open access: yes, 2014
Despite the early recognition of the potential of proton imaging to assist proton therapy (Cormack 1963 J. Appl. Phys. 34 2722), the modality is still removed from clinical practice, with various approaches in development. For proton-counting radiography
D J Parker   +19 more
core   +1 more source

Navigating challenges in radiography research: radiographers’ perspectives in Saudi Arabia [PDF]

open access: yesPeerJ
Introduction Radiography is a crucial healthcare specialty that requires ongoing research to advance imaging technologies and techniques. Despite this, radiographers are faced with obstacles such as time constraints, lack of resources, and the need for ...
Faisal A. Alrehily   +9 more
doaj   +2 more sources

Multi-Institutional Evaluation of Digital Tomosynthesis, Dual-Energy Radiography, and Conventional Chest Radiography for the Detection and Management of Pulmonary Nodules.

open access: yesRadiology, 2017
Purpose To conduct a multi-institutional, multireader study to compare the performance of digital tomosynthesis, dual-energy (DE) imaging, and conventional chest radiography for pulmonary nodule detection and management.
J. Dobbins   +7 more
semanticscholar   +1 more source

Magnetic resonance imaging findings in Ghanaian patients presenting with low back pain: a single centre study

open access: yesBMC Medical Imaging
Background Due to the high prevalence of low back pain which impacts the lives of those affected, several studies have explored findings associated with the lumbar spine (which is the affected anatomy) using magnetic resonance imaging (MRI).
Godwill Acquah   +6 more
doaj   +1 more source

THE INCIDENCE OF ULTRASOUND DIAGNOSED UTERINE ABNORMALITIES RELATED TO MISCARRIAGE RATES – A LOCAL AUDIT [PDF]

open access: yesRomanian Journal of Medical Practice, 2019
Introduction. Uterine abnormalities are traditionally presented as the cause of pregnancy loss at specific time of pregnancy, mostly at the first or second trimester.
Alyaa M. Raheem   +2 more
doaj   +1 more source

Monitoring temporal opacity fluctuations of large structures with muon tomography : a calibration experiment using a water tower tank [PDF]

open access: yes, 2016
Usage of secondary cosmic muons to image the geological structures density distribution significantly developed during the past ten years. Recent applications demonstrate the method interest to monitor magma ascent and volcanic gas movements inside ...
d'Ars, Jean de Bremond   +6 more
core   +5 more sources

Proton radiography and tomography with application to proton therapy

open access: yesBritish Journal of Radiology, 2015
Proton radiography and tomography have long promised benefit for proton therapy. Their first suggestion was in the early 1960s and the first published proton radiographs and CT images appeared in the late 1960s and 1970s, respectively.
G. Poludniowski, N. Allinson, P. Evans
semanticscholar   +1 more source

Circulating tumor DNA monitoring and blood tumor mutational burden in patients with metastatic solid tumors treated with atezolizumab

open access: yesMolecular Oncology, EarlyView.
In patients treated with atezolizumab as a part of the MyPathway (NCT02091141) trial, pre‐treatment ctDNA tumor fraction at high levels was associated with poor outcomes (radiographic response, progression‐free survival, and overall survival) but better sensitivity for blood tumor mutational burden (bTMB).
Charles Swanton   +17 more
wiley   +1 more source

Comparison of Anatomical and Indication-Based Diagnostic Reference Levels (DRLs) in Head CT Imaging: Implications for Radiation Dose Management

open access: yesInternational Journal of Biomedical Imaging
Conclusion:The study highlights that using anatomical DLP DRL values for specific indications in head CT scans can lead to underestimated or overestimated DLP values, making them less reliable for radiation management compared to indication-based DRLs ...
Benard Ohene-Botwe   +2 more
doaj   +1 more source

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