0.05).Conclusion Our findings suggest that patters of gene expression in the lung adenocarcinoma stem cell and normal lung stem cell are obviously different.

Objective To improve the accuracy of diagnosis of the greater omentum blunt trauma(GOBT)by analyzing the MSCT findings and pathological features.Methods The MSCT appearances of 5 1 cases of GOBT with operation and (or)pathological con-firmed were analyzed retrospectively.All patients were underwent MSCT plain scan in whole abdomen.Two experienced radiolo-gists blinded to the clinical diagnosis,reached a diagnosis from the MSCT findings by two ways of plain and plain joint post-process-ing MSCT images.The detection rates of GOBT were compared by two-related-samples Fisher exact probability chi-square test.Re-sults Fifty-one cases of GOBT were distributed over the intestine,in the superior abdominal cavity,the left and the right abdominal cavity,those cases were 27,18,3 and 3 respectively.The MSCT findings of GOBT mainly consist of greater omentum(GO)streak-ing,GO hematoma and fluid around GO.Those detectable rates were 80.3%,68.6%and 90.2 % respectively.The accuracy in di-agnosis of GOBT with MSCT was 94.1%(48/51)in our study.The detection rate of GOBT by two ways was significant (P=0.04).The detection rate of GOBT was increased obviously by the way of plain joint post-processing MSCT images.Conclusion MSCT manifestations of GOBT has some characteristics.A more accurate diagnosis of GOBT could be made according to the MSCT findings by plain joint post-processing MSCT images.

Objective To explore the MSCT and MRI characteristics of hydrosalpinx.Methods The CT and MRI findings of 28 patients with hydrosalpinx confirmed by surgery and pathology were retrospectively studied.Before operation,the plain and contrast enhanced CT in 25 patients and the plain and contrast enhanced MRI in 3 had been carried out.Results 1 9 patients with unilateral hydrosalpinx (12 on the left and 7 on the right side)and 9 patients with bilateral hydrosalpinx were found.Both CT and MRI images showed the cystic mass with different forms in annex area,including botuliform changes in 1 6 patients,beaded form in 9,polycystic changes in 8 and retort-like changes in 4.The low density as water on plain CT,and the low signal on T1 WI and high signal on T2 WI were showed.The cystic walls were significantly enhanced without nodules.If there is septum,mild enhancement was also found.14 patients with chronic salpingitis,2 with fascial thickening,3 with uterine fibroid and 1 7 with pelvic fluid.Conclusion CT and MRI findings of hydrosalpinx are characteristic.

Objective To investigate the effect of Livin expression on VSV-induced apoptsis of A549 cells.Methods The expression of Livin of A549 cells was inhibited by RNA interference.VSV-induced apoptosis of A549 cells was observed by Tunel assay.Protein Level of livin was detected by Western blot.Caspase-3 activity was detected by the fluorescence-based quantitative method.Results Livin downregulation VSV-induced apoptosis of A549 cells.Inhibited the expression of Livin of A549 cells had increased Caspase-3 activity.Conclusion The effect of Livin on VSV-induced apoptotic of A549 cells could be increased by RNA interference.

ObjectiveTo prospectively investigate the feasibility of contrast material-enhanced magnetic resonance angiography(CE-MRA)for visualization of the spinal vasculature.MethodsTen volunteers and fifteen patients with thoracic or lumbar disk herniation underwent contrast-enhanced MR angiography of the thoracoabdominal aorta and posterior branches.Examination Was performed with three-dimensional CE-MRA technique and 0.3 mmol/kg of gadolinium contrast agent Was administrated.ResultsIn all examinations,the Adamkiewicz artery,the anterior spinal artery(ASA),and their connections witll the aorta were identified.The Adamkiewicz artery originated between T8 and L3 in all examinations and derived from the left side of the aorta in 80% of all examinations.ASA was able to be observed from T6 to L3.The diameter of Adamkiewicz artery Was 0.6-1.2 mm and ASA was 0.6-1.0 mm.Conclusion CE-MRA Can be used to lOCalize Adamkiewicz artery and provide accurate information for clinical approach.

Objective To evaluate the feasibihty and clinical value of laparoscopic hepatectomy for liver tumors.Methods Laparoscopic hepatectomy from May 2010 to Oct 2013 was summarized including 27 cases of primary hepatocellular carcinoma,5 cases of liver hemangioma,3 cases of hepatic nodular hyperplasia,2 cases of liver metastases of colorectal cancer,2 cases of liver cystadenoma and 1 case of liver cyst.The diameter averaged at (4 ± 4) cm.Results All patients were successfully operated,no perioperative death.Irregular hepatectomy was performed in 21cases,hepatic left lateral lobectomy in 12 cases,segment VI resection in 4 cases and left hepatectomy in 3 cases.Operative time averaged (166 ± 109) min.Average blood loss was (480 ± 233) ml.Tumor margin was positive in two HCC cases.Bile leakage and ascites developed in one each patient,who were then cured by conservative treatment.Conclusions Laparoscopic hepatectomy for liver tumors is safe and feasible.

Objective To investigate the relationship of T peak-T end (Tp-Te) interval and Tp-Te interval disper-sion (Tp-Ted) in different periods of myocardial ischemia in patients with acute myocardial infarction (AMI), and to assess the clinical significance of Tp-Te and Tp-Ted for prediction of the ventricular arrhythmia (VA). Methods A total of 80 pa-tients with AMI were enrolled in the study. The sizes and changes of Tp-Te and Tp-Ted were observed during the acute phase and recovery phase in patients. The differences of Tp-Te and Tp-Ted were compared between ventricular tachycardia group (A group), ventricular premature beats group (B group) and non- ventricular arrhythmia group (C group). Results The values of Tp-Te and Tp-Ted were obviously longer in acute period [(125.22±17.70) ms and (54.76±13.26) ms] than those in recovery period[ (113.84±17.37) ms and (42.06±13.95)ms] (P<0.01). The values of Tp-Te and Tp-Ted were signifi-cantly longer in A group[ (134.82±19.56) ms and (62.00±15.19) ms] than those in B [(122.94±15.09) ms and (54.09±10.56) ms ]and C group [(110.09±15.21) ms and (45.27±9.85) ms]. The values were higher in B group than those of C group. Con-clusion The Tp-Te interval and Tp-Ted prolongated in acute phase than those of recovery phase in patients with AMI. Tp-Te interval and Tp-Ted can be used as an important index to predict VA in patients with AMI.

Objective To study the CT diagnosis of cerebral infarction after subarachnoid hemorrhage.Methods Clinical and CT findings of cerebral infarction after subarachnoid hemorrhage were analyzed 16 cases.Results Cerebral infarctions occurred in 7～13 d(average 10.5 d)after subarachnod hemorrhage.Multiple and bilaterial low densities in basal ganglia or/and brain lobes were characteristic of cerebral infarction after subarachnoid hemorrhage.Conclusion CT is an effect method for evaluation and diagnosis of cerebral infarction after subarachnoid hemorrhage.It is important to prevent its occurrence because it have high dead rate and bad prognosis.

Objective To study the clinical diagnosis value and CT features of gastric fundus and cardiac part lesions.Methods The CT findings and examining method of gastric fundus and cardiac part lesions were analyzed and summarized in 64 cases.Results (1)Use water as oral contrast can show the gastric mucosa clearly,it was a simple,effective way.(2)CT had important significance for stages and infiltration of cardiac cancer.(3)Varix of gastric fundus had three types:pseudotumor,tuber and thinking-wall.(4)The CT characteristic features of leiomyoma were the continuous linear enhancement in mucosa.Conclusion CT is method for gastrointestinal examining,it has special value to the gastric fundus and cardiac part lesions.

Objective To determine whether the incidence of pseudolesions of the liver caused by falciform ligament was correlated with liver function.Methods MRI of 150 consecutive cases were evaluated for the presence of pseudolesions caused by ligament compression.All cases were divided into two groups according to the Child-Pugh classification of liver function: Group I-normal liver function and Grade A(98 cases);Group II-Grades B and C(52 cases).Results The incidence of pseudolesions was 31.63% in groups I and no artifacts in Group II.The incidence of pseudolesions was significantly higher in Group I compared with those in Group II.Conclusion The artifacts in the liver caused by falciform compression on MR contrast-enhanced scan images may be seen more frequently in the patients with well liver function than in those with impaired function.