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Corners play an important role in computer vision, such as curve fitting, optical inspection, image segmentation, object recognition, etc. In our previous work, we proposed a new boundary-based corner detection algorithm. In this paper, we will compare it with other methods by conducting a rigorous experiment to evaluate the performances of both the curvature measurement and the optimization procedure...
To determine the effect of endoscopic variceal sclerotherapy or ligation on portal hypertensive gastropathy, 90 cirrhotic patients with esophageal variceal bleeding were randomized to receive sclerotherapy (n = 44) or ligation (n = 46). Follow-up endoscopic observations of the gastric mucosa were recorded at 3-month intervals after variceal eradication. Clinical characteristics in both groups were...
To determine the efficacy of endoscopic variceal sclerotherapy (EVS) and ligation (EVL) in the management of esophageal variceal bleeding, 134 cirrhotic patients were randomized to receive either treatment. The clinical and endoscopic characteristics were similar in both groups. Active bleeding was controlled with ligation (20 of 20) as efficiently as with sclerotherapy (14 of 16). Elective sclerotherapy...
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