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PURPOSE To evaluate the effectiveness of radio-frequency (RF) ablation and percutaneous microwave coagulation (PMC) for treatment of hepatocellular carcinoma (HCC). MATERIALS AND METHODS Seventy-two patients with 94 HCC nodules were randomly assigned to RF ablation and PMC groups. Thirty-six patients with 48 nodules were treated with RF ablation, and 36(More)
PURPOSE To determine the risk factors of cholangitis and liver abscess occurring after percutaneous ablation therapy for liver tumors. MATERIALS AND METHODS Between October 1995 and September 2002, 358 patients with 455 liver tumors underwent a total of 683 ablation procedures, such as percutaneous ethanol injection (PEI), percutaneous microwave(More)
PURPOSE To retrospectively evaluate the long-term effectiveness of percutaneous transhepatic balloon dilation of portal venous stenosis in patients who have undergone living donor liver transplantation. MATERIALS AND METHODS Institutional review board approval and informed consent were not required. From June 1996 to August 2003, obstructed portal venous(More)
BACKGROUND As a result of the shortage of cadaveric livers for adults, many institutes perform living-donor liver transplantation (LDLT) using right-lobe grafts. It is important to learn whether regeneration of the graft is compromised by division of middle hepatic vein (MHV) tributaries. Accordingly, we studied the effect on graft regeneration of(More)
Multiple cysts and benign cystadenomas of the pancreas have been documented occasionally in von Hippel-Lindau syndrome (HLS); however, the malignant involvement of the pancreas in HLS is very rare. We report a case of HLS in which metastatic tumors from renal cell carcinoma (RCC) coexisted with multiple cysts in the pancreas. A 22-year-old woman with a(More)
Our objective was to investigate brain MR imaging findings and the utility of diffusion-weighted (DW) imaging in organ transplant patients who developed neurologic symptoms during tacrolimus therapy. Brain MR studies, including DW imaging, were prospectively performed in 14 organ transplant patients receiving tacrolimus who developed neurologic(More)
BACKGROUND The purpose of this study was to determine whether pretreatment 18F-fluorodeoxyglucose-positron emission tomography (18F-FDG PET/CT) volume-based parameters, such as metabolic tumor volume and total lesion glycolysis, add more prognostic information in patients with oropharyngeal squamous cell carcinoma (SCC). METHODS The subjects were 47(More)
Purpose: To evaluate the efficacy of nonsurgical treatments for caudate hepatocellular carcinoma (HCC). Methods: Between January 1994 and February 2001, 25 patients were treated for HCCs with percutaneous ethanol injection (PEI), and/or transcatheter arterial embolization (TAE). PEI was performed for 19 caudate HCCs, combined treatment with PEI and TAE for(More)
Computed tomography (CT)-guided transthoracic radiofrequency ablation was performed for nine liver tumors of eight patients, which were located in the hepatic dome and undetectable by ultrasound (US). A total 11 sessions of ablation were performed. Complications were noted in five sessions (45%) and no complications were noted in six sessions (55%).(More)
OBJECTIVE The purpose of this study was to determine whether pretreatment quantitative and visual parameters seen on PET/CT using (18)F-FDG add prognostic information for clinical staging in patients with head and neck cancer. MATERIALS AND METHODS We enrolled 108 patients with histologically proven oral, oropharyngeal, hypopharyngeal, and laryngeal(More)