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  • 1
    Electronic Resource
    Electronic Resource
    Peribiliary cysts in cirrhotic liver: observation on computed tomography (1996)
    Springer
    Abdominal imaging 21 (1996), S. 228-232 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, cyst−Liver, cirrhosis−Liver, CT.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To analyze the frequency and number of suspected peribiliary cysts in cirrhotic liver on computed tomography (CT). Methods: Three hundred forty-six cases with clinically diagnosed liver cirrhosis (LC) and 307 cases with clinically diagnosed non-LC were subjected to the study. The frequency and number of suspected peribiliary cysts on CT were compared between the two groups. The existence of peribiliary cysts was suggested when a cyst was observed around the second- to fourth-order branches of the intrahepatic portal vein. Results: Peribiliary cysts were suggested on CT in 31 of 346 cirrhotic livers (9.0%) and 10 of 307 noncirrhotic livers (3.3%). This difference in the frequency of peribiliary cysts was statistically significant (χ2, p 〈 0.01). Multiple peribiliary cysts were seen in 71% of cirrhotic patients with peribiliary cyst. The size of peribiliary cysts was smaller than 1.5 cm in diameter. Conclusion: Peribiliary cyst is radiologically observed more frequently in cirrhotic liver than in noncirrhotic liver and is occasionally multiple.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900052
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  • 2
    Electronic Resource
    Electronic Resource
    Obstructive jaundice caused by lymphangitis carcinomatosa of bile duct wall from gastric carcinoma (1998)
    Springer
    Abdominal imaging 23 (1998), S. 177-179 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Gastric carcinoma—CT—Jaundice—Bile duct, lymphangitis carcinomatosa.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a case of advanced gastric carcinoma presenting with obstructive jaundice. Computed tomography showed marked lymphadenopathy in the hepatoduodenal ligament and concentric bile duct wall thickening. Histologically, extrahepatic bile duct wall was thickened due to submucosal lymphangitic spread of gastric carcinoma (lymphangitis carcinomatosa). Lymphangitis carcinomatosa may be considered when extrahepatic bile duct wall thickening is seen in patients with obstructive jaundice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900315
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Free MRA of the abdomen: postprocessing dynamic gadolinium-enhanced 3D axial MR images (2000)
    Springer
    Abdominal imaging 25 (2000), S. 62-66 
    Details
    ISSN: 1432-0509
    Keywords: Key words: MRI—Technique—MR angiography—Abdomen—Contrast agents.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Dynamic contrast-enhanced whole-abdomen axial images were obtained by using a fat-suppressed, three-dimensional, breath-hold enhanced fast spoiled gradient-echo technique, configured for optimal evaluation for detection and characterization of liver lesions. We then evaluated the feasibility of using these images to reconstruct “free” abdominal magnetic resonance angiography, without additional cost or acquisition time, in 32 randomly chosen patients. The aorta, celiac trunk, superior mesenteric, hepatic, splenic, and renal arteries were clearly depicted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002619910013
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  • 4
    Electronic Resource
    Electronic Resource
    CTAP in Budd-Chiari syndrome: evaluation of intrahepatic portal flow (1998)
    Springer
    Abdominal imaging 23 (1998), S. 304-308 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, CT—Portography—Hepatic veins, stenosis or obstruction—Hepatic veins, transluminal angioplasty—Hepatic veins, thrombosis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To assess the intrahepatic portal flow in patients with Budd-Chiari syndrome (BCS) by computed tomography (CT) during arterial portography (CTAP). Methods: Five patients with BCS [with (n = 3) and without (n = 2) inferior vena cava (IVC) obstruction] underwent both CTAP and postcontrast CT following CTAP. CTAP and postcontrast CT after angioplasty were also performed in one patient. Findings on CTAP and postcontrast CT were analyzed retrospectively. Results: Patients with IVC obstruction and a patent large hepatic vein showed homogeneous hepatic enhancement on CTAP. Patients without IVC obstruction and with no patent large hepatic veins showed heterogeneous hepatic enhancement, which consisted of patchy enhancement and more definite enhancement in the central part of the liver. On postcontrast CT, the patchy enhancement was enlarged compared with that on CTAP in these patients. The heterogeneous hepatic enhancement became homogeneous in the patient who underwent angioplasty. Conclusion: We suggest that the more marked the blood congestion, the more heterogeneous the hepatic enhancement becomes on CTAP. Heterogeneous hepatic enhancement on CTAP is seen in such cases without any patent hepatic veins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900346
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Giant hyperplasia of the caudate lobe of the cirrhotic liver: correlation with an anomaly of the caudate portal branch (1999)
    Springer
    Abdominal imaging 24 (1999), S. 153-156 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, blood supply—Liver cirrhosis—MRI—CT—US.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Different imaging appearances of giant hyperplastic change of the caudate lobe of the liver are presented in a patient with liver cirrhosis. The mass like caudate lobe was isoechoic on ultrasound, hypodense on postcontrast computed tomography (CT), hyperintense on T1-weighted magnetic resonance, images and isointense on T2-weighted images. These imaging findings are similar to those of dysplastic nodule in cirrhotic liver. The caudate lobe received normal portal flow on CT during arterial portography, but superior mesenteric arteriography showed precocious or early division of the caudate portal branch. We suspect that caudate hyperplastic change may be correlated to anomalous caudate portal vein branch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900465
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  • 6
    Electronic Resource
    Electronic Resource
    Intrahepatic biliary calculi: correlation of unusual MR findings with pathologic findings (2000)
    Springer
    Abdominal imaging 25 (2000), S. 266-268 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver—Biliary—Calculi—Magnetic resonance imaging.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of intrahepatic biliary calculi. A localized dilated intrahepatic duct of the left lateral segment of the liver was filled with material that showed marked hyperintensity on T1- and T2-weighted magnetic resonance (MR) images. These MR findings are unusual for intrahepatic stones. Pathologically, the stones were muddy bilirubin calculi, the chemical and physical characteristics of which are surmised to have been the cause of the unusual MR findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002610000030
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    MR imaging of focal splenic extramedullary hematopoiesis in polycythemia vera: case report (2000)
    Springer
    Abdominal imaging 25 (2000), S. 514-516 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Spleen—Hematopoiesis—Magnetic resonance imaging.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case with focal mass–like lesion of the spleen in polycythemia vera. Magnetic resonance imaging of the lesion showed homogeneous hyperintensity on T2-weighted images, with progressive enhancement on dynamic magnetic resonance images after bolus injection of gadolinium. The magnetic resonance features of focal splenic extramedullary hematopoiesis have not been previously reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002610000045
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  • 8
    Electronic Resource
    Electronic Resource
    Gallbladder varices: demonstration of direct communication to intrahepatic portal veins by color Doppler sonography and CT during arterial portography (1997)
    Springer
    Abdominal imaging 22 (1997), S. 82 -84 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Gallbladder varices—Portal venous thrombosis—Color Doppler sonography—CT during arterial portography (CTAP).
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Gallbladder varices were correctly diagnosed by color Doppler sonography and computed tomography during arterial portography (CTAP) in two patients with portal vein thrombosis. One patient with multiple hepatocellular carcinomas showed extrahepatic and intrahepatic portal vein occlusion by a tumor thrombus. The other patient, with liver cirrhosis, had a portal vein thrombosis. Color Doppler sonography clearly showed the portal vein occlusion, cavernous transformation of collateral veins, and gallbladder varices that drained into the intrahepatic portal venous branches. The intrahepatic portal venous branch, connecting to the gallbladder varices, exhibited reverse flow from the periphery to the hilum of the liver. CTAP also demonstrated gallbladder varices communicating directly with the intrahepatic portal vein branches in both patients. Gallbladder varices developed as a venous collateral because of extrahepatic portal vein occlusion. Color Doppler sonography and CTAP are useful for detecting these varices and planning biliary surgery in patients with portal vein thrombosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900145
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  • 9
    Electronic Resource
    Electronic Resource
    Aberrant gastric venous drainage into the medial segment[ql of the liver: demonstration by color Doppler sonography (1997)
    Springer
    Abdominal imaging 22 (1997), S. 502 -505 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, blood supply—Ultrasound (US), Doppler studies.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Aberrant gastric venous drainage (AGVD) into the posterior edge of the medial segment of the liver (segment IV) is the main cause of pseudolesion on computed tomography (CT) during arterial portography. We estimated the prevalence of AGVD into the medial segment of the liver with color and power Doppler ultrasound (US). Methods: Screening gray-scale and color Doppler and power Doppler US were performed in 100 consecutive patients. AGVD was defined as a venous structure that ascended parallel to the main portal vein and drained independently into segment IV. Results: AGVDs were observed in eight of 100 patients (8%) with color and power Doppler US. Power Doppler US depicted these veins more clearly than did color Doppler US. Gray-scale US did not show any AGVDs. Two of eight patients with AGVDs detected by color Doppler US underwent celiac arteriography and CT during arterial portography (CTAP). In these two patients, celiac arteriography directly demonstrated AGVDs draining into segment IV, which revealed nontumorous perfusion defects (pseudolesions) on CTAP. Conclusion: Color and power Doppler US are useful imaging methods for demonstrating AGVDs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900248
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Delayed MR imaging of the liver: correlation of delayed enhancement of hepatic tumors and pathologic appearance (1998)
    Springer
    Abdominal imaging 23 (1998), S. 309-313 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver—Neoplasm—Magnetic resonance (MR)—Contrast enhancement—Delayed imaging.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: The value of delayed magnetic resonance (MR) imaging (6 min) and ultradelayed MR imaging (1–4 h) for differentiating of hepatic tumors was studied. Methods: Postcontrast delayed and ultradelayed MR images were obtained after administration of 0.1 mmol/kg of Gd-DTPA in 30 patients with various malignant hepatic tumors. Results: Delayed enhancement in the center of the tumors was seen in 13 patients on the delayed MR images and in 22 patients on the ultradelayed MR images. On the ultradelayed images, peripheral hypointense rim was seen in 12 patients and central focal hypointense area was seen in eight patients. Pathologically, the portion showing delayed enhancement corresponded to abundant fibrous stroma, the hypointense rim to rich proliferation of tumor cells, and the central hypointense areas to coagulative necrosis. Conclusion: Ultradelayed MR imaging can characterize different tissue components within various hepatic tumors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900347
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    Paper (German National Licenses)
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