Objective To study the multi-slice spiral CT (MSCT) perfusion imaging in evaluating the changes of blood supply of hepatocellular carcinoma( HCC ) before and after transcatheter hepatic arterial chemoembolization (TACE). Methods Before and after TACE, MSCT perfusion was performed in 17 patients with HCC. The perfusion indexes such as hepatic blood flow (HBF), hepatic blood volume(HBV),mean transit time (MTT),hepatic arterial fracture (HAF),permeability surface (PS), hepatic artery perfusion (HAP), portal venous perfusion (PVP) were calculated. The hemodynamic changes of HCC after TACE were evaluated according to perfusion parameters. Results After TACE, HBF,HBV and HAP found in MTT and PS before and after TACE (P > 0.05). Conclusion The parameters of MSCT perfusion imaging( HBF, HBV and HAP) can effectively evaluate the hemodynamic changes of HCC after TACE, and has important value in chnical application.

Objective To analyse the relationship between lumbar discectomy outcomes and herniated type and annular integrity. Methods Two hundred and sixty patients who underwent conventional posterior discectomy for lumbar herniated disc were reviewed and followed-up for 6-14 years, with an average of 8.5 years. The criteria of enrolled patients include: all of the cases with low lumbar disc herniation at a single level, laterally protruded disc(one side sciatica) without spinal canal stenosis. Four categories of intraoperative findings were found basing on the defect size of annular and extruded fragments, and postoperative outcomes was compared statistically. Results The patients with larger disc fragments and minimal annular defects had the better outcomes and lowest incidence of recurrence after surgery. On the contrary, small fragments with massive annular defects did worse by comparison. Conclusion The outcomes of lumbar discectomy have close relationship with herniation type and annular integrity. Patients with mild clinical symptoms, small and broad-based disc herniations should be exempted from open discectomy. If open discectomy unavoidable, annular integrity and bony stability should be preserved as much as possible.

Degeneration of the lumbar facet joints is considered to be one of the main causes of low back pain,which severely impact the life quality of people.This article sums up the research advancement of the lumbar facet joints degeneration of domestic and foreign scholars in recent years,and summarizes the characteristics of the X-ray,CT and MRI and clinical significance of the degeneration of articular process,of which the characteristic of MRI was rarely reported domesticly.The purpose is to provide ideas and references for domestic scholars aiming to further clinical research of related fields in the future.

Clinical pharmacology is a cross subject of clinical medicine sciences and basic pharmacology.Only by making a lot of efforts to teach clearly,newly and lively,can we increase the students'interest and improve the teaching quality.

Objective To investigate the clinical value of modified BI?RADS classification by using the coronal plane of automatic breast volume scaner. Methods The total of 201 BI?RADS 3~5 classification of breast masses were retrospectively analyzed. All masses underwent conventional ultrasound and ABVS examination. Using BI? RADS classification standard terms to describe various information of breast masses, and record the coronal image of the masses on the complete interface echo, convergence sign, angle, burr, which classified BI?RADS ultimately. Results The coronal plane of convergence sign, complete interface echo, angulation and burr were significantly different between benign and malignant tumors (P<0.0001). The sensitivity of ABVS convergent sign in diagnosing breast malignant tumors was 68.2%, specificity was 93.4% and accuracy was 82%. The conventional ultrasound combined with the coronal feature of ABVS modified by BI?RADS classification showed that 3 kinds of malignant rate reduced from 8.5%to 3.2%. The rate of malignant 4a decreased from 25.2%to 12.1%and the rate of malignant 5 increased from 94.2% to 98%. Conclusion The convergence sign of ABVS can be used as a significant independent predictor of breast malignant tumors;ultrasound combined with ABVS is helpful to improve the accuracy of ultrasound BI?RADS classification.

BACKGROUND: The metal implant internal fixation exhibits good effect for femoral neck fractures of young patients, but few studies report the metal implant treatment for femoral neck fracture in the aged patients. OBJECTIVE: To compare different implant treatments for osteoporotic hip fractures in senile patients. METHODS: A total of 237 aged patients with osteoporotic hip fracture, aged from 60 to 96 years old, were recruited from the hospital between January 1998 and December 2008. There were 32 cases treated by cannulated screw internal fixation, 23 cases by anatomical plate internal fixation, 41 cases by dynamic hip screw internal fixation, 111 cases by bipolar femoral head replacement, and 30 cases by total hip replacement. Comparison of the incidence of complications and the recovery of hip function were performed in each group. RESULTS AND CONCLUSION: Cannulated screws, anatomical plates, dynamic hip screw internal fixation showed a higher complication rate significantly than bipolar femoral head replacement and total hip arthroplasty (P < 0.01); the good and excellent effect rate in cannulated screw, femoral end plate, and dynamic hip screw fixation was significantly lower than that in bipolar femoral head replacement and total hip arthroplasty (P < 0.001, P < 0.01). The results suggested that artificial joint replacement (bipolar femoral head replacement or total hip replacement) is the optimal choice for aged osteoporotic femoral neck fracture, cannulated screw fixation is suitable for Garden I, dynamic hip screw fixation and proximal femoral anatomical plate fixation fit for intertrochanteric fractures of Jensen-Evans I-Ⅱ; Jensen-Evans Ⅱ-Ⅲ osteoporotic intertrochanteric fractures joint replacement is the ideal choice.

Objective To investigate the inhibition effect of pituitary tumor transforming gene(PTTG) antisense oligodeoxynucleotide(ASODN) on C6 glioblastoma in rats.Methods The C6 glioma cells were injected into the right caudate nucleus.PTTG-ASODN of 8 or 16 ?g/ml was injected into the tumor-affected area with stereotactic technique immediately,at 1st and 2nd week after inoculation of C6 cells.Three weeks after C6 cell inoculation,all rats were killed and the tumors were excised,then tumor volume was calculated and pathologically analysed,and immunohistochemical statining for GFAP, PCNA ang PTTG was performed.Results PTTG-ASODN could suppress the proliferation of C6 glioblastoma in a dose-and time-dependent manner.The inhibition effect was better when large-dose PTTG-ASODN was repeatedly used for glioblastoma as early as possible.Conclusion PTTG-ASODN can suppress the proliferation of glioblastoma,which may become a new strategy of gene therapy for glioblastoma.