PURPOSE: To identify the four layers based on intranodular vascular nature visible in multiphase incremental bolus dynamic CT and to determine any differential points according to various factors of liver abscess with this vascular nature or not. MATERIALS AND METHODS: We categonized 29 cases of confirmed liver abscess into three different groups according to presence of four layers visible in early phase(arterial phase) of CT. Three groups were compared in regard to the results of antiamebic antibody test and bacteriologic study and presense of cholangitic abscess and internal septation. RESULTS: We could separate four layers, innermost hypodense central cavitary lesion, hyperdense granular tissue, hypodense abscess wall and outermost hyperdense compensatory hypervascular zone in 18 cases(62%), only two layers, cavity and wall in six cases(21%), and characteristically we could find three layers without innermost cavitary lesion in five cases(17%). But we couldn't find significant correlations between various clinical factors of liver abscess and our vascular groups. CONCLUSION: Our method of CT could represent four layers based on vascularity in 62% of cases. And also could find the unusual inflammatory mass containing three layer which must be differentiated from other malignant solid mass. But we couldn't find differential point between various clinical factor of liver abscess and imaging diagnosis. We think that with the improvement of hardware such as spiral CT, identification of four layers will be earier and will be very helpful in early detection and proper treatment planning of liver abscess.
Abscess* ; Diagnosis ; Liver Abscess* ; Liver* ; Tomography, Spiral Computed

We compared 87 portographic filling defects detected by portal CT in 64 patients were compared with those obtained by indirect portography. The indirect portography could visualize portogram only in anterior-posterior view. But the portal portal CT could visualize both portogram and hepatogram. We examined the portal CT and indirect portography and compared the accuracy of the both methods to evaluate the limitation and significance of the indirect protography. The mass shape lesions were seen on the portal CT which means portal flow defects of the mass lesions only could not depict totally in indirect portography (0%, 0/41). And the larger defects than real mass lesion were seen in portal CT means mass with associated portal flow defect and find portal vein invasion around the mass in 52% (24/46) of the indirect portography. Among them, only 66% of mass were detected correctly in the indirect portography comparing with mass lesion in portal CT. In summary, indirect portogram could not detect small filling defects which detected in portal CT and could not depict the extent of large filling defects. It also could not visualize correctly the protal flow in non-lesion side of the liver parenchyma.
Humans ; Liver ; Portal Vein ; Portography*

No abstract available.
Kasabach-Merritt Syndrome*

Authors performed angio-CT(portal &/or arterial CT) in 35 patients with various hepatic masses. We obtained portal CT in 32 and arterial CT in 13 patients. The contrast material was injected into superior mesenteric artery for portal CT and into hepatic artery for arterial CT after transfemoral cathetrization of these arteries. We concluded that portal CT was superior to other imaging modalities highly sensitive in detecting hepatic masses, especially, early hepatocellular carcinomas, daughter nodules, and subclinical metastatic hepatic malignancy, With this method, detection rate of early hepatocelluar carcinomas improved 62% in number of patients and 90% in number of masses. Detection rate of subclinical hepatic metastases improve 60% each in number of patients and in number of masses. It was also useful for the detection of portal vein invasion. Arterial CT was useful in differential of masses and in defining the characteristics of entire or part of the masses because this method revealed hemodynamic patterns more definitely.
Arteries ; Carcinoma, Hepatocellular ; Hemodynamics ; Hepatic Artery ; Humans ; Mesenteric Artery, Superior ; Methods ; Neoplasm Metastasis ; Nuclear Family ; Portal Vein

PURPOSE: With the technical advancement in arterial embolization and subsegmental resection of liver neoplasm, emphasis has been on more detailed knowledge of normal arterial anatomy and its variation. We analysed the patterns of intrahepatic branches of right hepatic artery. MATERIALS AND METHODS: We retrospectively analyzed intrahepatic branching patterns of right hepatic artery in 165 cases. All cases had a single right hepatic artery which could be traced up to tertiary branches, and also performed rapid drip infusion CT scan, hepatic arteriography with antero-posterior and oblique views, superior mesenteric arteriorgraphy and indirect portography. RESULTS: lntrahepatic branching patterns of the right hepatic artery had eight types of variation. The most common intrahepatic branching pattern was type I: 107(64.5%) which represented 5, 8th branch emerging from the anterior segmental artery and 6, 7th branch from the posterior segmental artery. Type VII :26(15.8%) was the next common type which represented 6th branch emerging first from the posterior segmental artery and 7th branch emerging secondly from the posterior segmental artery. Type VII, VI, III were branched from the posterior segmental artery. Type IV, II, V were branched from the anterior segmental artery. CONCLUSION: These result could be helpful to the planning of treatment, such as hepatic subsegmentectomy or transarterial embolization of the hepatic neoplasm.
Angiography* ; Arteries ; Hepatic Artery* ; Infusions, Intravenous ; Liver Neoplasms ; Portography ; Retrospective Studies ; Tomography, X-Ray Computed*

PURPOSE: With the technical advancement in arterial embolization and subsegmental resection of liver neoplasm, emphasis has been on more detailed knowledge of normal arterial anatomy and its variation. We analysed the patterns of intrahepatic branches of right hepatic artery. MATERIALS AND METHODS: We retrospectively analyzed intrahepatic branching patterns of right hepatic artery in 165 cases. All cases had a single right hepatic artery which could be traced up to tertiary branches, and also performed rapid drip infusion CT scan, hepatic arteriography with antero-posterior and oblique views, superior mesenteric arteriorgraphy and indirect portography. RESULTS: lntrahepatic branching patterns of the right hepatic artery had eight types of variation. The most common intrahepatic branching pattern was type I: 107(64.5%) which represented 5, 8th branch emerging from the anterior segmental artery and 6, 7th branch from the posterior segmental artery. Type VII :26(15.8%) was the next common type which represented 6th branch emerging first from the posterior segmental artery and 7th branch emerging secondly from the posterior segmental artery. Type VII, VI, III were branched from the posterior segmental artery. Type IV, II, V were branched from the anterior segmental artery. CONCLUSION: These result could be helpful to the planning of treatment, such as hepatic subsegmentectomy or transarterial embolization of the hepatic neoplasm.
Angiography* ; Arteries ; Hepatic Artery* ; Infusions, Intravenous ; Liver Neoplasms ; Portography ; Retrospective Studies ; Tomography, X-Ray Computed*

The coronary arteries are also subject to congenital anomalies of both minor and major consequence. Hemodynamically significant primary anomalies of the coronary arteries are those which alter myocardial perfusion. There are four major types : coronary artery fistula, origin of the left voronary artery from the pulmonary artery, congenital coronary stenosis or atresia and origin of the left or right coronary artery from the opposite sinus of Valsalva with subsequent passage of the vessel between the aorta and right ventricular infundibulum. Minor anomlies are the variation of the origin of the coronary arteries from the aorta with normal distal circulation. We can see more coronary anomalies associated with congenital cardiac anomalies, probably representing a circulatory response to the primary intracardiac defect. We present a total of 76 cases of congenital coronary anomalies, reviewing 3946 cases of angiocardiography or selective coronary arteriography, performed during last 8 years at Sejong General Hospital.
Angiocardiography ; Angiography ; Aorta ; Arteries ; Coronary Stenosis ; Coronary Vessels* ; Fistula ; Hospitals, General ; Perfusion ; Pulmonary Artery ; Sinus of Valsalva

Supravalvular aortic stenosis may be defined as an obstructive congenital deformity of the ascending aorta whitch originates just distal to the level of the origins of the coronary arteries, and whitch includes a wide spectrum of pathologic changes. A 27 years-old-female was admitted because of further evaluation of known some heart disease. Clinical diagnosis of supravalvular aortic stenosis was made by echocardiography and angiography. We presented a case of supravalvular aortic stenosis with a review of literature.
Angiography ; Aorta ; Aortic Stenosis, Supravalvular* ; Congenital Abnormalities ; Coronary Vessels ; Diagnosis ; Echocardiography ; Heart Diseases

An accurate early diagnosis of congenital midgut malrotation is essential to prevention of catastrophic effects of volvulus. To evaluate the usefulness of radiologic examinations in diagnosing intestinal malrotation, we retrospectively analyzed radiologic findings and operation records of 17 intestinal malrotation patients, who were radiologically diagnosed. The age range of the patients studied were from 1day to 12years. The presenting symptoms were vomiting, vomiting with abdominal pain, abdominal distention, diarrhea and failure to thrive. The viewpoints of this analysis were the location of duodeno-jejunal flexure on barium meal and cecal location on barium enema. Sixteen of 17 patients, who were radiologically diagnosed, were surgically proven, but one patient with annular pancreas was false positive. In the case of 3 surgically proved patients, malrotation was suspected on barium meal prior to the barium enema, but final diagnosis was determined on barium enema examination. We concluded that a barium enema should be performed on all children with suspected malrotation where the initial upper gastro-intestinal study was normal or suspicious on account of the small incidence of false positive and false negative barium meals.
Abdominal Pain ; Barium ; Child ; Diagnosis ; Diarrhea ; Early Diagnosis ; Enema ; Failure to Thrive ; Humans ; Incidence ; Intestinal Volvulus ; Meals ; Pancreas ; Retrospective Studies ; Vomiting

No abstract available.
Ascites* ; Liver Cirrhosis* ; Liver* ; Pleural Effusion*