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Diagnostic accuracy in coronary CT angiography analysis: artificial intelligence versus human assessment.
Open Heart
January 2025
Department of Cardiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Background: Visual assessment of coronary CT angiography (CCTA) is time-consuming, influenced by reader experience and prone to interobserver variability. This study evaluated a novel algorithm for coronary stenosis quantification (atherosclerosis imaging quantitative CT, AI-QCT).
Methods: The study included 208 patients with suspected coronary artery disease (CAD) undergoing CCTA in Perfusion Imaging and CT Coronary Angiography With Invasive Coronary Angiography-1.
Evaluation of three diagnostic algorithms to reduce normal scan rates, radiation exposure and costs in patients with suspected chronic coronary syndrome referred for 82Rb-Positron Emission Tomography (Rb-PET).
Open Heart
January 2025
Department of Cardiology, University Hospital Basel, Basel, Switzerland.
Background: The majority of functional ischemia tests in patients with suspected chronic coronary syndromes (CCS) yield normal results. Implementing gatekeepers for patient preselection, such as pretest probability (PTP) and/or coronary artery calcium score (CACS), could reduce the number of normal scan results, radiation exposure and costs. However, the efficacy and safety of these approaches remain unclear.
View Article and Find Full Text PDFQuantitative assessment of transmural remission in Crohn's disease using low dose computed tomography (CT) enterography perfusion imaging: a single-centre study based on intestinal microcirculation.
Clin Radiol
December 2024
Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China. Electronic address:
Aim: To assess transmural remission in patients with Crohn's disease using low-dose small bowel computed tomography (CT) perfusion scans.
Materials And Methods: Forty six patients were divided into active and remission phases based on Crohn's Disease Activity Index (CDAI) and C-reactive protein (CRP). Dual-source CT enterography with low-dose perfusion scans was conducted to generate perfusion parameter maps, including blood flow (BF), blood volume (BV), time to peak (TTP), mean transit time (MTT), and permeability of surface (PS).
Evaluation of the therapeutic effects of nebulized inhalation of hydrogen-rich water on primary blast lung injury in C57BL/6 mice.
Surgery
January 2025
Senior Department of Burns & Plastic Surgery, Institute of Burn in the Fourth Medical Centre, Chinese PLA General Hospital, Beijing, China. Electronic address:
Background: Primary blast lung injury is a common and severe consequence of explosion events, characterized by immediate and delayed effects such as apnea and rapid shallow breathing. The overpressure generated by blasts leads to alveolar and capillary damage, resulting in ventilation-perfusion mismatch and increased intrapulmonary shunting. This reduces the effective gas exchange area, causing hypoxemia and hypercapnia.
View Article and Find Full Text PDFProtocol for the three-dimensional analysis of rodent skeletal muscle.
STAR Protoc
January 2025
Stem Cell Institute, University of Minnesota Medical School, Minneapolis, MN, USA; Paul & Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, MN, USA; Department of Neurology, University of Minnesota Medical School, Minneapolis, MN, USA. Electronic address:
Confocal imaging is a powerful tool capable of analyzing cellular spatial data within a given tissue. Here, we present a protocol for preparing optically cleared extensor digitorum longus (EDL) skeletal muscle samples suitable for confocal imaging/computational analysis. We describe steps for sample preparation (including perfusion fixation and tissue clearing of muscle samples), image acquisition, and computational analysis, with sample segmentation/3D rendering outlined.
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