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Intravascular ultrasound-guided reentry wiring with tip-detection technique for chronic total occlusion of lower extremity artery disease.
CVIR Endovasc
December 2024
Department of Cardiovascular Medicine, Asahi General Hospital, I-1326 Asahi, Chiba, 289-2511, Japan.
Background: Endovascular therapy is an effective method for revascularization in lower extremity artery disease, but treating chronic total occlusion (CTO) remains challenging. This is particularly true for patients with severe calcification, poor run-off in below-the-knee arteries, or limited access sites, where even guidewire (GW) passage can be difficult and bidirectional approaches are often not feasible. The tip-detection (TD) method has been reported as a useful technique in coronary artery CTO interventions, allowing real-time visualization of the GW tip direction.
View Article and Find Full Text PDFPersistence diagrams for exploring the shape variability of abdominal aortic aneurysms.
Sci Rep
November 2024
MOX, Department of Mathematics, Politecnico di Milano, 20133, Milan, Italy.
Abdominal aortic aneurysm consists of a permanent dilation in the abdominal portion of the aorta and, along with its associated pathologies like calcifications and intraluminal thrombi, is one of the most important pathologies of the circulatory system. The shape of the aorta is among the primary drivers for these health issues, with particular reference to all the characteristics which affect the hemodynamics. Starting from the computed tomography angiography of a patient, we propose to summarize such information using tools derived from Topological Data Analysis, obtaining persistence diagrams which describe the irregularities of the lumen of the aorta.
View Article and Find Full Text PDFChallenges and predictive radiological findings in the diagnosis of neuroendocrine tumors in patients with acute appendicitis.
Ulus Travma Acil Cerrahi Derg
November 2024
Department of Radiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul-Türkiye.
Background: Acute appendicitis is one of the most common surgical emergencies. With antibiotic-first treatment strategies gaining importance, the risk of an appendiceal tumor as an incidental finding or as the cause of appendicitis presents an obstacle to a conservative approach. Neuroendocrine tumors, the most frequent type of appendiceal tumors, are difficult to diagnose preopera-tively due to their small size.
View Article and Find Full Text PDFTrapping Combined Double-bypass to Manage Unruptured Giant Thrombosed MCA Aneurysm.
Neurol India
September 2024
The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.
Management of giant complex thrombosed aneurysms of the middle cerebral artery (MCA) is challenging. Most giant MCA aneurysms possess some unfavorable features, such as incorporation of key MCA branches, efferent or perforating vessels originating from the sac, mural calcifications, intraluminal thrombi, or fusiform configurations. Due to these peculiar features, traditional clipping or simple endovascular coiling is generally not able to treat these aneurysms.
View Article and Find Full Text PDFDifferentiating extradural head and neck arterial fenestrations from other intraluminal abnormalities.
Eur J Radiol
December 2024
Lahey Hospital and Medical Center, 41 Burlington Mall Road, Burlington, MA 01805, United States.
Article Synopsis
- - Arterial fenestrations are harmless structures resulting from a failure of fetal fusion, which need to be distinguished from carotid webs and dissections for appropriate clinical management.
- - A study analyzed 1,800 head and neck CTA scans over 18 months, finding a small percentage of intraluminal abnormalities: 0.4% were fenestrations, 0.9% were carotid webs, and 2.6% were dissections.
- - The findings emphasize that while arterial fenestrations are rare, recognizing their distinct imaging characteristics on CTAs is crucial for correct diagnosis and treatment decisions.
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