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PURPOSE: Three-dimensional(3D) magnetic resonance(MR) projection imaging was evaluated as a noninvasive alternative to direct cholangiography for the assessment of its reliability in patients with obsructive jaundice. METHODS AND MATERIALS: A heavily T2-weighted gradient-echo sequence(PSIF) was used for 3D MR projecion imaging of the biliary system in five healthy volunteers and 25 patients with obstructive jaundice. The 3D images of the bile ducts were formed by stacking consecutive coronal MR images obtained with a fast imaging method to a maximum-intensity projection algorithm. RESULTS: In the volunteers, MR cholangiography could demonstrate the anatomy of the biliary tract in only two subjects. The extrahepatic and intraheparic bile ducts were well visualized in 23 patients with obstructive jaundice. The leve of obstruction and the grade of dilatation were dipicted with MR cholangiography in all cases. And the cause of obstruction could be determined with MR cholangiography in 18 cases, MR cholangiography was successful in two patients in whom ERCP failed. The gallbladder or dilated pancreatic duct not demonstrated by means of direct cholangiography was demonstrated with MR cholangiography in six cases.
Bile Ducts ; Biliary Tract ; Cholangiography* ; Cholangiopancreatography, Endoscopic Retrograde ; Dilatation ; Gallbladder ; Healthy Volunteers ; Humans ; Jaundice ; Jaundice, Obstructive* ; Pancreatic Ducts ; Volunteers

10.Two cases of islet cell hyperplasia with nesidioblastosis.

Myeong Ku CHO ; Kyeong Bae PARK ; Gyu Bum CHO ; Dong Hwan LEE ; Sang Jhoo LEE

Journal of the Korean Pediatric Society 1991;34(2):273-280

1.A subclassification of conduct disorder by child behavior checklist.

2.A study of endogenous gonadotropin suppression with oral contraceptives and triggering follicular maturation with GnRH-a before in vitro fertilization.

3.A study of low dose purified follicle-stimulating hormone supplemented with gonadotropin releasing hormone agonist in women with polycystic ovarian disease.

4.The study on successful therapy with electroejaculation and in vitro fertilization-embryo trnasfer.

5.The treatment of unruptured tubal pregnancy with intra-amniotic methotrexate injection under transcaginal sono-guidance.

6.Combined intrauterine and intraligamentary full term pregnancy after in vitro fertilization & embryo transfer.

7.Clinical and statistic analysis on cesarean section.

8.The study for in vitro fertilization using GnRH agonist to tigger follicular maturation.

9.MR Cholangiography: Usefulness in Obstructive Jaundice.

10.Two cases of islet cell hyperplasia with nesidioblastosis.

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