1,720,979 research outputs found
Images - Computed tomography urographic appearance of traumatic rupture of renal cyst into the pyelocaliceal system
No full textSpontaneous or traumatic rupture of renal cysts, documented by radiological imaging, occurs infrequently. The pathogenesis of a cyst rupture is still unclear, except when it has
occurred following trauma or when the cyst has become infected. Imaging plays a crucial role in the diagnosis, management, surveillance, and choice of lesions that need
treatment
The “spoke wheel” sign in hepatic focal nodular hyperplasia
No full textCLASSICS IN ABDOMINAL RADIOLOG
Color Doppler Ultrasound in Portal Hypertension: A Closer Look at Left Gastric Vein Hemodynamics
No full textPortal hypertension is one of the most important causes of morbidity and mortality in cirrhotic patients. A color Doppler evaluation of the left gastric vein (LGV) has proven utility in the prediction of esophageal varices and variceal bleeding in patients with portal hypertension. The purpose of this review is to discuss the ultrasound evaluation, imaging findings, and clinical application of Doppler ultrasound in the assessment of the LGV. Knowledge of the color Doppler technique and imaging findings of the LGV may help clinicians improve the monitoring of portal hypertension and predict patients with a high risk of esophageal varices
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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