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Left-sided gallbladder:Its clinical significance and imaging presentations

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World Journal of Gastroenterology 2007年第47期13卷 6404-6409页

作者： Sheng-Lung Hsu Tai-Yi Chen Tung-Liang Huang Cheuk-Kwan Sun allan M Concejero Leo leung-Chit Tsang Yu-Fan Cheng Department of Diagnostic Radiology Chang Gung Memorial Hospital - Kaohsiung Medical Center Chang Gung University College of Medicine Kaohsiung Taiwan China Department of Surgery Chang Gung Memorial Hospital - Kaohsiung Medical Center Chang Gung University College of Medicine Kaohsiung Taiwan China

AIM: To assess the importance of preoperative diagnosis and presentation of left-sided gallbladder using ultrasound (US),CT and angiography. METHODS: Retrospective review of 1482 patients who underwent enhanced CT scanning was performed. Left-sided gallbladder was diagnosed if a right-sided ligamentum teres was present. The image presentations on US,CT and angiography were also reviewed. RESULTS: Left-sided gallbladder was diagnosed in nine patients. The associated abnormalities on CT imaging included portal vein anomalies,absence of umbilical portion of the portal vein in the left lobe of the liver,club-shaped portal vein in the right lobe of the liver,and difficulty in identifying segment Ⅳ. Angiography in six of nine patients demonstrated abnormal portal venous system (trifurcation type in four of six patients). The main hepatic arteries followed the portal veins in all six patients. The segment Ⅳ artery was identified in four of six patients using angiography,although segment Ⅳ was difficult to define on CT imaging. Hepatectomy was performed in three patients with concomitant liver tumor and the diagnosis of left-sided gallbladder was confirmed intraoperatively. CONCLUSION: Left-sided gallbladder is an important clinical entity in hepatectomy due to its associated portal venous and biliary anomalies. It should be considered in US,CT and angiography images that demonstrate no definite segment Ⅳ,absence of umbilical portion of the portal vein in the left lobe,and club-shaped right anterior portal vein.

关键词： Left-sided gallbladder Angiography Computed tomography Ultrasound

Macro-regenerative nodules in biliary atresia:CT/MRI findings and their pathological relations

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World Journal of Gastroenterology 2008年第28期14卷 4529-4534页

作者： Jiun-Lung Liang Yu-Fan Cheng allan M Concejero Tung-Liang Huang Tai-Yi Chen Leo leung-Chit Tsang Hsin-You Ou Departments of Diagnostic Radiology Chang Gung Memorial HospitalKaohsiung Medical Center and Chang Gung University College of Medicine Kaohsiung 83305 Taiwan China Departments of Surgery Chang Gung Memorial Hospital-Kaohsiung Medical Center and Chang Gung University College of Medicine Kaohsiung 83305 Taiwan China

AIM: To describe the radiological findings of a macro-regenerative nodule (MRN) in the liver of pre-transplantation biliary atresia (BA) patients and to correlate it with histological findings. METHODS: Between August 1990 and November 2007, 144 BA patients underwent liver transplantation (LT) at our institution. The pre-transplantation computer tomograghy (CT) and magnetic resonance imaging (MRI) findings were reviewed and correlated with the post-transplantation pathological findings. RESULTS: Nine tumor lesions in 7 patients were diagnosed in explanted livers. The post-transplantation pathological findings showed that all the lesions were MRNs without malignant features. No small nodule was detected by either MRI or CT. Of the 8 detectable lesions, 6 (75%) were in the central part of the liver, 5 (63%) were larger than 5 cm, 5 (63%) had intra- tumor tubular structures, 3 (38%) showed enhancing fibrous septa, 3 (38%) had arterial enhancement in CT, one (13%) showed enhancement in MRI, and one (13%) had internal calcifications. CONCLUSION: Although varied in radiological appearance, MRN can be differentiated from hepatocellular carcinoma (HCC) in most of BA patients awaiting LT. The presence of an arterial-enhancingnodule does not imply that LT is withheld solely on the basis of presumed malignancy by imaging studies. Liver biopsy may be required in aid of diagnostic imaging to exclude malignancy.

关键词： Biliary atresia Macro-regenerative nodule Liver neoplasm Liver transplantation Computed tomography Magnetic resonance imaging

Grain, pellet and wax block bait take by the house mouse (Mus musculus) and non-target species: implications for mouse eradications on coral cay islands

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Integrative Zoology 2008年第3期3卷 227-234页

作者： Jennyffer CRUZ Luke K-P.leung allan LISLE Dario F.RIVERA Linton STAPLES Michelle SMITH School of Animal Studies University of QueenslandGattonQueenslandAustralia School of Land Crop and Food SciencesUniversity of QueenslandGattonQueenslandAustralia Animal Control Technologies SomertonVictoriaAustralia

Introduced rodents have been eradicated from large numbers of offshore islands using toxic baits;however, toxicbaits have been linked with negative impacts on non-target species. The present study assessed the bait take oftarget (house mouse, Mus musculus) and non-target (buff banded rail, Rallus philippensis) animals on Northwestand Heron Islands in the Great Barrier Reef. Three non-toxic bait formulations (wax block, pellet and grain) weretested and each was applied at 1 kg ha–1 in six treatment grids. The tracks of animals visiting the baits were identifiedusing 30 tracking stations per treatment grid. A tracking station consisted of a track-board placed in the centre of asand-pad. Mean bait take differed significantly between the formulations: birds took more grain bait than wax blockbait;mice took more wax block than grain bait. Both mice and birds were equally selective of pellet bait. Thus, thefindings indicate that wax blocks are the most suitable formulation for future baiting programs to eradicate mice onthese and other islands.

关键词： island Mus musculus non-target studies non-toxic bait rodent eradication

Interventional radiology in living donor liver transplant

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World Journal of Gastroenterology 2014年第20期20卷 6221-6225页

作者： Yu-Fan Cheng Hsin-You Ou Chun-Yen Yu Leo leung-Chit Tsang Tung-Liang Huang Tai-Yi Chen Hsien-Wen Hsu allan M Concerjero Chih-Chi Wang Shih-Ho Wang Tsan-Shiun Lin Yueh-Wei Liu Chee-Chien Yong Yu-Hung Lin Chih-Che Lin King-Wah Chiu Bruno Jawan Hock-Liew Eng Chao-Long Chen Department of Diagnostic Radiology Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Department of Surgery Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Division of Hepatogastroenterology Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Department of Anesthesiology Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Department of Pathology Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine

The shortage of deceased donor liver grafts led to the use of living donor liver transplant(LDLT).Patients who un-dergo LDLT have a higher risk of complications than those who undergo deceased donor liver transplantation(LT).Interventional radiology has acquired a key role in every LT program by treating the majority of vascular and nonvascular post-transplant complications,improving graft and patient survival and avoiding,in the majority of cases,surgical revision and/or *** aim of this paper is to review indications,diagnostic modalities,technical considerations,achievements and potential complications of interventional radiology procedures after LDLT.

关键词： Portal vein Hepatic artery Hepatic vein Bile duct Living donor liver transplantation Liver transplant