Effect of fatty liver background on contrast-enhanced ultrasonographic appearance of focal nodular hyperplasia.

Background: Focal nodular hyperplasia (FNH) is increasingly diagnosed as a result of the advances in imaging studies such as contrast-enhanced ultrasonography (CEUS), enhanced computed tomography and magnetic resonance imaging. However, FNH with atypical features can be difficult to differentiate from other benign and malignant tumors. The aim of this study was to investigate the influence of fatty liver background on the CEUS characteristics of FNH.

Ultrasound-guided fine needle aspiration biopsy in differential diagnosis of portal vein tumor thrombosis.

Background: Portal vein tumor thrombosis (PVTT) is a serious complication and a major metastatic way of hepatocellular carcinoma(HCC). But portal vein benign thrombosis(PVBT) always appears in patients with hepatocirrhosis, and PVTT should be differentiated from PVBT. The aim of this study was to probe the value of ultrasound-guided fine needle aspiration biopsy in differential diagnosis of PVTT.

Experimental and clinical assessment of percutaneous hepatic quantified ethanol injection in treatment of hepatic carcinoma.

Aim: To detect the relationship between absolute ethanol injection quantity, the interval and formation of fibreboard, the curative effect in treatment of hepatocarcinoma and to evaluate the clinical application of percutaneous hepatic quantified ethanol injection (PHQEI) in treatment of hepatic carcinoma (HCC).

Methods: (1) Experimental study: Twenty-four human hepatic carcinoma SMMC-7721 xenografted nude mice were randomly divided into three groups: group A injected with quantified ethanol at short intervals (QESI), group B with quantified ethanol at long intervals (QELI) and group C with a small quantity of ethanol at long intervals (SQLI). The tumor tissues were sent for patho-histology and electron microscopic examinations.

Percutaneous intratumoral injection of traditional Chinese herbal compound medicine Star-99 in treatment of hepatocellular carcinoma of mice.

Background: Unresectable hepatocellular carcinoma (HCC) lacks effective therapy and entails very poor progress. In 1991, we found that Chinese herbal compound Star-99 has potentially effect on HCC. The purpose of this study was to probe the anti-cancer effect and the mechanism of focal injection of Chinese herbal compound Star-99 into HCC of mice.

Intraoperative ultrasonography in hepatobiliary surgery.

Objective: To assess the value of intraoperative ultrasonography in hepatobiliary surgery.

Methods: Aloka-650 and Aloka-500 with a 3.5 MHz probe were used in preoperative ultrasonography and those with 5 MHz or 7.

The reaction front hypothesis in solid-state digestion: estimation of minimum size of viable seed body.

An alternative mechanism for the anaerobic digestion of a bed of solids was recently proposed. A multizoned reaction front might form around a suitable body of seed material, then advance through the bed, within the solid phase. Such a solid-phase mechanism might coexist with liquid-phase digestion but one or the other of these two parallel mechanisms might generally be dominant.

Experimental study on ultrasound-guided intratumoral injection of "Star-99" in treatment of hepatocellular carcinoma of nude mice.

Aim: To investigate the anti-cancer effect and the immunological mechanism of ultrasound-guided intratumoral injection of Chinese medicine "Star-99" in hepatocellular carcinoma (HCC) of nude mice.

Methods: Twenty-eight human hepatocellular carcinoma SMMC-7721 transplanted nude mice, 14 of hypodermically implanted and 14 of orthotopic liver transplanted, were randomly divided into three groups of which 14 mice with Star-99, and 7 with ethanol and saline respectively. Ten days after the transplantation the medicines were injected into the tumors of all the nude mice once every 5 days.

[Intraoperative ultrasonographic detection of liver metastasis from tumors of the digestive tract].

Objective: To ascertain the value of intraoperative ultrasonography to early detect liver metastasis from tumors of the digestive tract.

Methods: Intraoperative ultrasonography (US) of the liver was performed in 176 patients with confirmed diagnosis of cancer of the stomach and colon. All the nodules detected were either resected or needle biopsied for histological diagnosis.