Ultrasonographic examination of the liver in sheep

Ueli Braun From the Clinic of Veterinary Internal Medicine, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland.

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Karin Hausammann From the Clinic of Veterinary Internal Medicine, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland.

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Summary

The purpose of the study reported here was to get detailed information about the normal size and texture of the liver in sheep by means of ultrasonographic examinations. Structure, location, and shape of the liver, gallbladder, portal vein, and caudal vena cava were examined ultrasonographically in 100 sheep. Furthermore, 10 sheep were scanned 10 times within 2 weeks to determine reproducibility of findings. Examinations were performed on the right side of the abdomen in the seventh through twelfth intercostal spaces. In each intercostal space, the dimensions of the liver, and, if visible, the location and diameter of the caudal vena cava and portal vein were determined. The angle of the liver, and location and size of the gallbladder also were determined. Ultrasonographic measurements of liver size and location in healthy sheep can be used as references for changes in liver size attributable to illness.

Summary

The purpose of the study reported here was to get detailed information about the normal size and texture of the liver in sheep by means of ultrasonographic examinations. Structure, location, and shape of the liver, gallbladder, portal vein, and caudal vena cava were examined ultrasonographically in 100 sheep. Furthermore, 10 sheep were scanned 10 times within 2 weeks to determine reproducibility of findings. Examinations were performed on the right side of the abdomen in the seventh through twelfth intercostal spaces. In each intercostal space, the dimensions of the liver, and, if visible, the location and diameter of the caudal vena cava and portal vein were determined. The angle of the liver, and location and size of the gallbladder also were determined. Ultrasonographic measurements of liver size and location in healthy sheep can be used as references for changes in liver size attributable to illness.

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