Indeed, for the detection of thrombi in the portal vein, it has an accuracy of 88–98% (sensitivity and specificity are 80–100% in most studies). 17,18,19,20,21,22 The high specificity of this ...

For patients with chronic PVT, ultrasound or CT/MRI with contrast can identify absence of portal vein flow or cavernous transformation while excluding associated causes. [ 11 ] 1 2 3 ...

All cases from January 1992 to December 2005 of extrahepatic portal vein thrombosis or intrahepatic portal vein thrombosis were included. All registered diagnoses were based on either ultrasound ...

Figure 1.Portal vein thromboembolism development post COVID-19. A – abdominal ultrasound confirming the absence of blood flow in a dilated portal vein; B – computed tomography (CT) scan showing a ...

When the portal vein is blocked, the blood volume increases in the surrounding blood vessels, and they turn into varicose veins. ... Imaging such as an ultrasound or CT scan; ...

Mesenteric venous thrombosis usually involves the superior mesenteric vein, with the danger of bowel infarction. The newer imaging techniques allow earlier diagnosis. A predisposing condition (such ...

Portal vein thrombosis (PVT) ... Dr. Yifan Jian explores the evolution of OCT, challenges in retinal imaging, and AI's potential in biophotonics, shaping the future of ophthalmic diagnostics.