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Combining the Variational and Deep Learning Techniques for Classification of Video Capsule Endoscopic Images.
J Imaging Inform Med
January 2025
Gastroenterology Department of Gandhi Medical College, Bhopal, 462003, India.
Gastrointestinal tract-related cancers pose a significant health burden, with high mortality rates. In order to detect the anomalies of the gastrointestinal tract that may progress to cancer, a video capsule endoscopy procedure is employed. The number of video capsule endoscopic ( ) images produced per examination is enormous, which necessitates hours of analysis by clinicians.
View Article and Find Full Text PDFCoronary revascularisation deferral based on quantitative flow ratio or fractional flow reserve: a post hoc analysis of the FAVOR III Europe trial.
EuroIntervention
January 2025
Hospital Clínico San Carlos IDISSC, Complutense University of Madrid, Madrid, Spain and Centro de Investigación Biomédica en Red - Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain.
Background: Safe deferral of revascularisation is a key aspect of physiology-guided percutaneous coronary intervention (PCI). While recent evidence gathered in the FAVOR III Europe trial showed that quantitative flow ratio (QFR) guidance did not meet non-inferiority to fractional flow reserve (FFR) guidance, it remains unknown if QFR might have a specific value in revascularisation deferral.
Aims: We aimed to evaluate the safety of coronary revascularisation deferral based on QFR as compared with FFR.
Hemodynamic evaluation of symptomatic and asymptomatic intracranial atherosclerotic stenosis using cerebral angiographic images: an exploratory study.
J Neurointerv Surg
January 2025
Neurovascular Center, Changhai Hospital, Shanghai, China
Background: Previous studies suggest that it may be inappropriate to determine treatment strategies solely based on the degree of stenosis for patients with intracranial atherosclerotic stenosis (ICAS). In order to better risk stratify patients with ICAS, we developed a novel non-invasive fractional flow (FF) calculation technique based on intracranial angiography (Angio-FF) to assess the hemodynamics for patients with ICAS. This study aims to investigate the difference in FF between symptomatic and asymptomatic patients with ICAS and its potential optimal threshold.
View Article and Find Full Text PDFComparison of different guidance strategies to percutaneous coronary intervention: A network meta-analysis of randomized clinical trials.
Int J Cardiol
December 2024
Cardiothoracic and Vascular Department (DICATOV), IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Background: The results of randomized clinical trials comparing the outcomes of different strategies for driving PCI are mixed, and it remains unclear which technique for driving PCI offers the greatest benefit. The aim of the study was to compare the clinical efficacy of different techniques to guide percutaneous coronary intervention (PCI).
Methods: We search major electronic databases for randomized clinical trials evaluating clinical outcomes of PCI with stent implantation guided by coronary angiography (CA), fractional flow reserve (FFR), instantaneous wave-free ratio (iFR), intravascular ultrasound (IVUS) and optical coherence tomography (OCT).
Noninvasive machine-learning models for the detection of lesion-specific ischemia in patients with stable angina with intermediate stenosis severity on coronary CT angiography.
Phys Eng Sci Med
December 2024
Department of Clinical Radiology and Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
This study proposed noninvasive machine-learning models for the detection of lesion-specific ischemia (LSI) in patients with stable angina with intermediate stenosis severity based on coronary computed tomography (CT) angiography. This single-center retrospective study analyzed 76 patients (99 vessels) with stable angina who underwent coronary CT angiography (CCTA) and had intermediate stenosis severity (40-69%) on invasive coronary angiography. LSI, defined as a resting full-cycle ratio < 0.
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