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1.  Intrahepatic Portosystemic Venous Shunt: Successful Embolization Using the Amplatzer Vascular Plug II 
Korean Journal of Radiology  2012;13(6):827-831.
A 67-year-old woman presented with memory impairment and behavioral changes. Brain MRI indicated hepatic encephalopathy. Abdominal CT scans revealed an intrahepatic portosystemic venous shunt that consisted of two shunt tracts to the aneurysmal sac that communicated directly with the right hepatic vein. The large tract was successfully occluded by embolization using the newly available AMPLATZERTM Vascular Plug II and the small tract was occluded by using coils. The patient's symptoms disappeared after shunt closure and she remained free of recurrence at the 3-month follow-up evaluation.
doi:10.3348/kjr.2012.13.6.827
PMCID: PMC3484308  PMID: 23118586
Hepatic encephalopathy; Portosystemic shunt; Surgical; Embolization; Therapeutic
2.  Comparison of Internally Cooled Wet Electrode and Hepatic Vascular Inflow Occlusion Method for Hepatic Radiofrequency Ablation 
Gut and Liver  2012;6(4):471-475.
Background/Aims
Various strategies to expand the ablation zone have been attempted using hepatic radiofrequency ablation (RFA). The optimal strategy, however, is unknown. We compared hepatic RFA with an internally cooled wet (ICW) electrode and vascular inflow occlusion.
Methods
Eight dogs were assigned to one of three groups: only RFA using an internally cooled electrode (group A), RFA using an ICW electrode (group B), and RFA using an internally cooled electrode with the Pringle maneuver (group C). The ablation zone diameters were measured on the gross specimens, and the volume of the ablation zone was calculated.
Results
The ablation zone volume was greatest in group B (1.82±1.23 cm3), followed by group C (1.22±0.47 cm3), and then group A (0.48±0.33 cm3). The volumes for group B were significantly larger than the volumes for group A (p=0.030). There was no significant difference in the volumes between groups A and C (p=0.079) and between groups B and C (p=0.827).
Conclusions
Both the usage of an ICW electrode and hepatic vascular occlusion effectively expanded the ablation zone. The use of an ICW electrode induced a larger ablation zone with easy handling compared with using hepatic vascular occlusion, although this difference was not statistically significant.
doi:10.5009/gnl.2012.6.4.471
PMCID: PMC3493728  PMID: 23170152
Liver; Catheter ablation
3.  Iatrogenic Left Internal Mammary Artery to Great Cardiac Vein Anastomosis Treated With Coil Embolization 
Korean Circulation Journal  2011;41(2):105-108.
Inadvertent left internal mammary artery (LIMA)-great cardiac vein (GCV) anastomosis is a rare complication of coronary artery bypass graft surgery. Patients with iatrogenic aortocoronary fistula (ACF) were usually treated surgical repair, percutaneous embolic occlusion with coil or balloon. We report a case of iatrogenic LIMA to GCV anastomosis successfully treated with coil embolization and protected left main coronary intervention through the percutaneous transfemoral approach.
doi:10.4070/kcj.2011.41.2.105
PMCID: PMC3053558  PMID: 21430997
Coronary Artery Bypass Surgery; Internal Mammary-Coronary Artery Anastomosis; Arteriovenous fistula; Embolization, therapeutic
4.  Incidental Detection of Interstitial Pregnancy on CT Imaging 
Korean Journal of Radiology  2009;11(1):123-125.
Ectopic pregnancy is a potentially life-threatening condition. Detection of ectopic pregnancy on CT images is rare. In this case, we describe the CT findings of interstitial pregnancy both before and after rupture. If CT images demonstrate the presence of a strong enhancing ring-like mass in the pelvis, ectopic pregnancy should be considered.
doi:10.3348/kjr.2010.11.1.123
PMCID: PMC2799642  PMID: 20046504
Ectopic pregnancy; Interstitial pregnancy; Hemoperitoneum; Tomography, spiral volumetric computed

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