Phase and Amplitude Image were developed to overcome the subjective nature of interpretation for cinematic endless loop display of radionuclide gated blood pool scan. To evaluate the usefulness of color coded phase image in coronary artery disease, we conducted a clinical study with coronary angiography and phase image in 23 patients, and compared the results of those studies. 1) The results of coronary angiography revealed normal coronary artery in 6, 1 vessel disease in 11, 2 vessel disease in 4, and 3 vessel disease in 2 patients. 2) Color-coded Phase Image revealed abnormal phase area in 2/2(100%) of 3 vessel disease patients and in 3/4(75%) of 2 vessel disease patients, in 5/11(45%) of 1 vessel disease patients, and only 1/6(16%) of normal coronary artery. 3) Among the patients who disclosed abnormal phase image, 5 patients of 2-or3-vessl disease revealed abnormal phase through whole left ventricular area, but 3 patients with right coronary artery lesion and 2 patients with left antrior descending artery lesion showed localized abnormal phase area, infero-apical and anterior portion respectively, which were in accord with each coronary lesion. We concluded that the phase image may be useful in evaluation of the regional wall motion abnormalities in the patients of coronary artery disease. Further studies seem to be neccessary to clarify the sensitivity and specificity of the phase image in the each disease entity group.
Arteries ; Coronary Angiography ; Coronary Artery Disease* ; Coronary Vessels* ; Humans ; Sensitivity and Specificity

BACKGROUND/AIMS: The management of small-bowel perforations associated with endoscopic retrograde cholangiopancreatography (ERCP) or endoscopic sphincterotomy (EST) is still controversial. The purpose of this study was to analyze the treatment and outcome of patients with ERCP-related perforations in a single tertiary medical center. METHODS: Of 18,379 cases of ERCPs performed between January 1990 and December 2003, twenty-six patients (0.14%) with perforation were identified and medical chart were reviewed retrospectively. RESULT: EST were performed in 10,231 patients and perforation occurred in 18 patients. Four out of 18 patients with small-bowel perforation related to EST underwent surgical operation and the rest 14 patients recovered with conservative treatment alone. Of the rest 8 perforation patients unrelated to EST, perforation occurred during the insertion of endoscope in 7 patients and catheter manipulation in 1 patient. All but one perforations associated with mechanical injury by endoscope itself were managed with an emergent laparotomy, and the one patient with perforation related to catheter manipulation recovered with conservative treatment. CONCLUSIONS: A small-bowel perforation related to endoscope per se usually required a surgery, but sphincterotomy related perforations rarely did so. The prevalence and mortality rate of small-bowel perforations associated with ERCP and/or EST were 0.14% and 0%, respectively, in a single tertiary medical center.
Catheters ; Cholangiopancreatography, Endoscopic Retrograde ; Endoscopes ; Humans ; Laparotomy ; Mortality ; Prevalence ; Retrospective Studies ; Sphincterotomy, Endoscopic