90 research outputs found
Pediatric DXA: technique and interpretation
This article reviews dual X-ray absorptiometry (DXA) technique and interpretation with emphasis on the considerations unique to pediatrics. Specifically, the use of DXA in children requires the radiologist to be a “clinical pathologist” monitoring the technical aspects of the DXA acquisition, a “statistician” knowledgeable in the concepts of Z-scores and least significant changes, and a “bone specialist” providing the referring clinician a meaningful context for the numeric result generated by DXA. The patient factors that most significantly influence bone mineral density are discussed and are reviewed with respect to available normative databases. The effects the growing skeleton has on the DXA result are also presented. Most important, the need for the radiologist to be actively involved in the technical and interpretive aspects of DXA is stressed. Finally, the diagnosis of osteoporosis should not be made on DXA results alone but should take into account other patient factors
Quantitative modeling of the physiology of ascites in portal hypertension
Although the factors involved in cirrhotic ascites have been studied for a century, a number of observations are not understood, including the action of diuretics in the treatment of ascites and the ability of the plasma-ascitic albumin gradient to diagnose portal hypertension. This communication presents an explanation of ascites based solely on pathophysiological alterations within the peritoneal cavity. A quantitative model is described based on experimental vascular and intraperitoneal pressures, lymph flow, and peritoneal space compliance. The model's predictions accurately mimic clinical observations in ascites, including the magnitude and time course of changes observed following paracentesis or diuretic therapy
Recurrent and de novo non-alcoholic steatohepatitis following orthotopic liver transplantation
Continuous monitoring of portal vein and hepatic artery hemodynamics in unrestrained rats
Baclofen and Alcohol Use Disorders Breakthrough or Great White Elephant?
International audienc
Sur la d\ue9couverte de Characidae (Pisces, Cypriniformes) dans l\u27Eoc\ue8ne Inf\ue9rieur fran\ue7ais
Volume: 88Start Page: 175End Page: 17
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