H O Håkansson

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PURPOSE The diagnostic value and cost-efficiency of MR imaging were compared with US before endoscopic retrograde cholangiopancreatography (ERCP) in patients with clinically suspected biliary tract disease. MATERIAL AND METHODS In a prospective study of 219 patients, 85 were examined with both MR and US before ERCP. RESULTS To find the correct diagnosis(More)
In a 10-year period, 80 patients, median age 78 years, were operated on for mesenteric vascular occlusion--arterial in 50 cases, venous in 24 and of uncertain etiology in six cases. Abdominal pain out of proportion to physical findings occurred in only eight cases. Vague abdominal symptoms with increasing tenderness led to surgical exploration in most(More)
PURPOSE The diagnostic value of fast pulse sequences in MR imaging was compared with US in patients with clinically suspected acute cholecystitis. MATERIAL AND METHODS In a prospective study of 94 patients, 35 were examined with both MR and US within 24 h. RESULTS MR diagnoses were acute cholecystitis in 23, gallbladder and common bile duct stones in 3,(More)
One hundred and ten patients with suspected oesophageal symptoms were investigated by means of oesophageal endoscopy (OE), 24-h pH-metry, and oesophageal scintigraphy (ES). When 24-h pH-metry formed the basis for diagnosis of gastrooesophageal reflux disease (GERD), the sensitivity for ES at abdominal compression was 64%, but no statistically significant(More)
BACKGROUND Pancreatic acinar-like metaplasia has previously been described in the gastric mucosa and in the distal part of the oesophagus. The resemblance to pancreatic acinar cells prompted us to study the possible occurrence of secretory pancreatic proteins in these cells. METHODS Seven specimens obtained from the distal oesophagus at gastroscopy where(More)
PURPOSE To study the appearance of bile in clinical MR cholangiopancreatography (MRCP) with special reference to its chemical and physical properties. MATERIAL AND METHODS Gallbladder bile was collected during surgery from 38 patients and studied with respect to chemical constituents. The relaxation rates 1/T1 and 1/T2 of bile were also determined in(More)
Trace amounts of porcine pancreatic elastase mixed with porcine serum, or injected intravenously into the pig, were found to be bound mainly to alpha 1- and alpha 2-macroglobulin (90%). Alpha 1-macroglobulin approached saturation with elastase before significant binding to alpha 2-macroglobulin was demonstrable. Human pancreatic cationic elastase showed in(More)
A radioimmunoassay for porcine, cationic, pancreatic elastase (irPE) is described. Normal porcine serum contains only small amounts of irPE (less than 3 micrograms/l). IrPE in serum and peritoneal exudate from 6 pigs with experimental pancreatitis was found mainly in a molecular form corresponding to free pro-enzyme. The presence of alpha 1-, alpha(More)
PURPOSE To describe the normal MR appearance after cholecystectomy and the findings in patients with postoperative complications using fast pulse sequences in abdominal MR imaging. MATERIAL AND METHODS In a prospective study of 119 patients, 64 were examined with MR after cholecystectomy. In total, 56 patients with uncomplicated cholecystectomy were(More)