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BACKGROUND Percutaneous microwave ablation and radiofrequency ablation are two commonly used modalities for the treatment of hepatocellular carcinoma; however, comparisons of them have not been documented adequately. METHODS Of 102 patients with biopsy-proved hepatocellular carcinoma, 49 (98 nodules) were treated percutaneously with microwave ablation and(More)
BACKGROUND : Radiofrequency ablation (RFA) and microwave ablation (MWA) were found to be effective in treating hepatocellular carcinoma (HCC) smaller than 3 cm; however, to the authors' knowledge, the usefulness of thermal ablation in treating larger HCC, especially those >5 cm, has not been well documented. The present study evaluated the therapeutic(More)
OBJECTIVE The purpose of this study was to evaluate the usefulness of contrast-enhanced ultrasonography (CEUS) in differentiating renal cell carcinoma (RCC) from renal angiomyolipoma (RAML). METHODS One hundred nineteen patients with 126 renal lesions (33 RAMLs and 93 RCCs) who had undergone CEUS were retrospectively studied. All of the lesions were(More)
OBJECTIVE The purpose of this study was to investigate the imaging findings of peripheral cholangiocarcinoma with low-mechanical index (MI) contrast-enhanced sonography. METHODS Eighteen nodules of peripheral cholangiocarcinoma proved by pathologic examination in 18 patients were evaluated with contrast-enhanced sonography. A low-MI real-time(More)
BACKGROUND Bile leakage remains a major postoperative complication after liver resection. Bile leakage after hepatectomy for liver neoplasms has been well studied. However, the risk factors and management of this complication after liver resection for intrahepatic lithiasis has not been investigated. METHODS From January 1992 to June 2004, 312 consecutive(More)
OBJECTIVE To comparatively evaluate shear wave elastography (SWE) and real-time elastography (RTE) in distinguishing malignant from benign thyroid nodules. METHODS 49 patients with 64 focal thyroid nodules were enrolled and underwent SWE and RTE before surgery. SWE elasticity indices (mean, minimum and maximum value of 2-mm region of interest) of nodules(More)
OBJECTIVE The purpose of this study was to assess the diagnostic performance of real-time contrast-enhanced sonography in characterization of small focal liver lesions (FLLs; < or = 3.0 cm in diameter). METHODS Two hundred small FLLs in 200 patients were examined by contrast-enhanced sonography using a contrast-specific mode of contrast pulse sequencing(More)
PURPOSE To evaluate the usefulness of contrast-enhanced sonography (CEUS) in the diagnosis of small hepatocellular carcinoma (HCC) measuring < or =2 cm in diameter. METHODS We identified 104 focal liver lesions measuring < or =2 cm in 104 consecutive patients who were enrolled for baseline sonography (BUS) and CEUS examination (49 HCCs, 55 non-HCCs). A(More)
PURPOSE This study was aimed to investigate whether the tumor necrosis induced by radiofrequency ablation (RFA) can improve the ratio of tumor-to-normal tissue (T/NT) after intratumoral injection of (131)I-chTNT. MATERIALS AND METHOD Eighteen New Zealand rabbits bearing VX2 tumor on the thigh were randomly divided into two treatment groups (control group:(More)
AIM To study the effect of Ureaplasma urealyticum (UU) infection on germ cell apoptosis of male rats. METHODS Male rats were infected artificially with UU serotype 8 (T960). Morphological changes of germ cells in the seminiferous tubules and the lumen of the epididymides were observed under the light microscope. Fluorescence-conjugated polyclonal(More)