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Bullet characterization using Photon-Counting detector CT: A phantom study with intact bullets.
Eur J Radiol
December 2024
Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre+, PO Box 5800, 6202 AZ Maastricht, the Netherlands; Mental Health and Sciences (MHeNs) Research Institute, Maastricht University, PO Box 616, 6200 MD Maastricht, the Netherlands.
Objectives: Photon-counting detector CT (PCD-CT) is expected to substantially improve and expand CT-imaging applicability due to its intrinsic spectral capabilities, increased spatial resolution, reduced electronic noise, and improved image contrast. The current study aim is to evaluate PCD-CT efficacy in characterizing bullets based on their dimensions, shape, and material composition.
Materials And Methods: This is an observational phantom study examining 11 unfired, intact bullets of various common calibers, placed in ballistic gelatin.
Relationship between cumulative blood pressure exposure within the early brain injury time window and delayed cerebral ischemia and rebleeding in patients with aneurysmal subarachnoid hemorrhage after aneurysm clipping: a retrospective study.
Neurosurg Rev
December 2024
Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing, 400010, People's Republic of China.
Delayed cerebral ischemia, one of the most common complications following aneurysmal subarachnoid hemorrhage, was strongly related to poor patient outcomes. However, there are currently no clear guidelines to provide clinical guidance for post-craniotomy management. Our research aims to explore the association between cumulative blood pressure exposure during the early brain injury phase and the occurrence of delayed cerebral infarction and rebleeding following surgical aneurysm clipping.
View Article and Find Full Text PDFInterruption of the visual cycle in a novel animal model induces progressive vision loss resembling Stargardts Disease.
Sci Rep
December 2024
INCI-UPR3212-CNRS, 8 Allée du Général Rouvillois, 67000, Strasbourg, France.
Mutations in the gene ABCA4 coding for photoreceptor-specific ATP-binding cassette subfamily A member 4, are responsible for Stargardts Disease type 1 (STGD1), the most common form of inherited macular degeneration. STGD1 typically declares early in life and leads to severe visual handicap. Abca4 gene-deletion mouse models of STGD1 accumulate lipofuscin, a hallmark of the disease, but unlike the human disease show no or only moderate structural changes and no functional decline.
View Article and Find Full Text PDFA quality assessment of YouTube content on posterior urethral valve.
J Pediatr Urol
December 2024
Department of Urology, Gaziosmanpasa Training and Research Hospital, Istanbul, Türkiye.
Introduction: Posterior urethral valve (PUV) is a congenital condition marked by obstructing persistent urogenital membrane, leading to urinary tract infections, bladder dysfunction, and kidney damage. It affects males only, mostly suspected antenatally and confirmed in early infancy. It requires early diagnosis and intervention to prevent long-term complications.
View Article and Find Full Text PDFDefinition of particle visibility threshold in parenteral drug products - towards standardization of visual inspection operator qualification.
PDA J Pharm Sci Technol
December 2024
Clear Solutions Laboratories AG;
The detectability size threshold of visible particles (″visibility″ size) in the context of visual inspection of parenteral drug products has been an elusive target for several decades. The current common sense, also reflected in official guidelines, dictates that particles of different shapes and morphologies have different ″visibility″ size thresholds, that can range between hundreds and thousands of micrometers. This study demonstrates experimentally for the first time that it is possible to define a single, shape- and morphology- independent detectability size threshold, identical across particles of various types, provided that observation conditions and product attributes are kept constant.
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