A new ultrasound probe (type 8555) especially constructed for laparosc
opic sonography has been developed in collaboration with B&K Medical A
/S, Naerum, Denmark. The probe is 9.5 mm in diameter and the usable le
ngth of the rod is 39 cm. At the tip a convex scanner of 5-7.5-MHz fre
quency can be angled 90-degrees up and 45-degrees down. The scanner is
capable of both real-time sonography and color-flow doppler. Our firs
t trials showed that the scanner not only facilitates sonographic exam
ination of the biliary tree but also permits visualization of the enti
re liver, the pancreas, the spleen, and other intraabdominal organs.