It was the same in the S stage. Conclusion: Raising of PME/PDE in chronic HBV showed the increase of histological grading and staging in chronic HBV. PME/PDE of 31P MRS was a significant mark of liver histology, and 31P MRS was a noninvasive test of liver fibrosis. Key Word(s): 1. 31P MRS; 2. liver histology; 3. chronic HBV; Presenting Author: QIAN ZHANG Additional Authors: CHUNYU ZHANG, YONGGUI ZHANG, WENQIAN QI Corresponding Author: QIAN ZHANG, WENQIAN QI Affiliations: China-Japan Union hospital of JiLin University Objective: To assess value of the correctionT2*

of magnetic resonance imaging (MRI) in diagnosis hepatic steatosis Methods: Forty steatosis hepatitis patients who underwent click here MRI and liver biopsy and twenty healthy control were include in this study. Base on the liver biopsy, hepatic steatosis patients were divided into <30%,30%-50%,50%-75% and >75%. The signal intensity was calculated check details in co-localised regions of interest using conventional spoiled gradient-echo T1 FLASH in-phase and opposed-phase.

T2* relaxation time was recorded in a fat-saturated multi-echo-gradient-echo sequence. The fat fraction was calculated with non-corrected and T2*-corrected SIs. Compare the T2*MRI steatosis rate to the liver biopsy. Results: In all patients, the T2* fat fraction was significant different between the hepatic steatosis and control, and it was correlated with steatosis rate, P < 0.05. Then compare the T2* fat fraction of different group of liver biopsy patients. fat fraction was the highest in the steatosis rate >75% patients, and it is similar with the steatosis rate 50–75% patients, and the two were significant higher than the steatosis rate Carnitine palmitoyltransferase II <30% and 30%-50% patients. There was no significant different between 30%-50% group and <30% group, and also between <30% group and control. Conclusion: T2*MRI fat fraction was a accurate and noninvasive test

for the diagnosis of hepatic steatosis. It not very sensitive in slight steatosis. Key Word(s): 1. T2*; 2. MRI; 3. hepatic steatosis; Presenting Author: BORISALEXANDROVICH MINKO Additional Authors: HABIBKASIM GABARI, VITALYSEMENOVICH PRUCHANSKY Corresponding Author: BORISALEXANDROVICH MINKO Affiliations: Russian Research Centre for Radiology and Surgical Technologies Objective: Esophageal cancer is a common and one of the most unfavorable from the point of view of predictive tumor of the gastrointestinal tract. The majority of patients with esophageal cancer seek medical help in the later stages of the disease, when the execution of radical surgery in full volume presents great difficulties. Primary diagnosis of cancer of the esophagus and evaluation stages of the disease stages with the prevalence of lymph node is carried out both on the preoperative stage and prior to chemo radiotherapy.