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Because the hepatic artery provides the only blood supply to the biliary tree of a liver allograft, posttransplantation arterial occlusion may result in a biliary complication. Cholangiograms were reviewed retrospectively in 31 transplant patients who had proved complete or partial occlusions of the hepatic artery (thrombosis in 29 and marked stenosis in(More)
Intrahepatic periportal fibrosis and portal hypertension were produced in the dog by repeated intraportal injection of a polyvinyl alcohol suspension over a two- to six-month period. Progressive hepatic fibrosis originating in the portal triads around occluded portal vein radicles occurred during the first year. Porto-systemic venous collaterals developed(More)
Twenty angiographic procedures involving the superior mesenteric artery (SMA) were performed with balloon occlusion catheters in dogs with chronic liver cirrhosis and portal hypertension. The following complications were found: (a) rapid balloon inflation during angiography due to a leak between the two catheter lumens (two cases); (b) failure to deflate a(More)
With increasing participation and intensity of training in youth sports in the United States, the incidence of sports-related injuries is increasing, and the types of injuries are shifting. In this article, the authors review sports injuries of the lower extremity, including both acute and overuse injuries, that are common in or specific to the pediatric(More)
Image processing plays an important role in optimizing image quality and radiation dose in projection radiography. Unfortunately commercial algorithms are black boxes that are often left at or near vendor default settings rather than being optimized. We hypothesize that different commercial image-processing systems, when left at or near default settings,(More)
Cranial ultrasound is an essential screening and diagnostic tool in the care of neonates and is especially useful in the premature population for evaluation of potential germinal matrix/intraventricular hemorrhage (GM/IVH). There are typically two screening examinations, with the initial cranial sonography performed between 3 days and 14 days after birth,(More)
Point-of-care (POC) ultrasound refers to the use of portable imaging. Although POC ultrasound is widely available to the neonatologists in Australia and Europe, neonatologists in the United States report limited availability. Our objective was to seek the US neonatologists' perception of barriers and prerequisites in adopting POC ultrasound in neonatal(More)
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