The articles concerning intensive effect and progress of interventional therapy for hepatocellular carcinoma (HCC) recurrence were comprehensively reviewed. Along with unceasing abundance of all interventional methods (including transcatheter arterial chemoemblization (TACE),percutaneous dehydrated ethanol injection,radio frequency ablation,percutaneous microwave therapy,argon-helium cryoablation,high-intensity focused ultrasound and radionuclide interventional therapy,etc),combined interven-tional therapies mainly TACE were increasingly appreciated in postoperative HCC recurrence,but still have to be further standardized. With further emerging and maturing of new technologies,such as antiangiogenesis,gene therapy and targeted therapy on HCC metastatic and recurrence specific cycle; the effect of combined therapy will be further promoted. Interventional therapy will play an important role in the prevention and treatment of postoperative HCC recurrence in the foreseen furture.

The interventional therapy of chemoembolization is the first management of choice in treating unresectable hepatic carcinomas but with some side effects including liver function damage and bone marrow restraints which may affect the patients'life expectancy and living quality in the long run.The advancement of the combination of interventional treatment with Chinese drugs in managing liver carcinomas is a special presentation by the auther for further recommondation.

Bone marrow mesenchyma stem cells are stem cells that occupy self-renewal and multiple differentiations into cells,which have been recognized as the optimal origin for liver cell.With an increasing number of studies addressing marrow mesenchyma stem cells,more attention has been drawn to treating liver disease using the stem cell and organ reconstruction,especially seeks for the appropriate in vitro induction system.This paper comprehensive summarized the differentiation characteristics of marrow mesenchyma stem cell under many kinds of micro environment,and explains the superiority,as well as existence question of each kind of induction condition.

Hemoptysis is a life-threatening clinical emergency.Many diseases can cause hemoptysis and the blood vessels supplying the bleeding site are complicated and varied.Using endovascular embolization to treat hemoptysis has many advantages.It is safe to apply this technique in a great variety of indications with less contraindications.Besides,this technique is minimally-invasive and takes hemostatic effect immediately with less complications.Therefore,endovascular embolization has become the therapy of first choice for hemoptysis.This paper aims to make a comprehensive review in the respects of embolic materials,technical points,short-term and long-term effectiveness and related complications,etc.

BACKGROUND:Superparamagnetic iron oxide has been widely used in biomedical applications, especialy in the field of targeted diagnosis and therapy. OBJECTIVE:To summarize the physicochemical property, preparation, surface modification, product testing and biomedical applications of superparamagnetic iron oxide. METHODS: In order to search relevant articles about the physicochemical property and biomedical applications of superparamagnetic iron oxide from PubMed, Sciencedirect, CNKI and Wanfang databases (from 2000 to 2014), a computer-based search was performed using the keywords of “superparamagnetic iron oxide, preparation, coprecipitation, surface modification, magnetic resonance imaging contrast agent, fluorescent tracing, targeted therapy” in English and Chinese, respectively. RESULTS AND CONCLUSION: The superparamagnetic iron oxide can be produced in the laboratory, and the preparation methods include hydrothermal method, vapor deposition method, mechanical miling method, liquid-phase microwave dielectric heating method, sol-gel method, emulsion method, co-precipitation method. Moreover, the superparamagnetic iron oxide can have different properties by surface modification and be applied in many biomedical fields, such as magnetic resonance contrast agent, fluorescent tracer, nanoparticle targeted therapy, hyperthermia and bioseparation.

At present, the percutaneous transhepatic cholangiodrainage (PTCD) and the self-expandable metal stent implantation are commonly recognized as an effective treatment for inoperable malignant biliary obstruction, but the restenosis of biliary stent significantly affect the therapeutic result and prognosis.Percutaneous transhepatic intraductal radiofrequency ablation can be used together with biliary stent implantation, which can prolong the patency time of biliary stent and control the local tumor at the narrowed segment, thus, the therapeutic effect of malignant biliary obstruction can be reliably improved. As a kind of newly-developed therapy, its clinical safety is especially important. This paper aims to make a review about the safety of percutaneous transhepatic intraductal radiofrequency ablation combined with biliary stent implantation in treating malignant biliary obstruction.

Objective To investigate the effect of contrast material flow rate and delayed time on intracranial vascular spiral computed tomographic angiography(SCTA) imaging.Methods 30 patients were selected randomly who planed to do brain contrast enhanced CT examination.In all 30 patients a plane dynamic test scanning at suprasellar cistern level was preformed with 20ml contrast material at a flow rate of 2ml/s,3ml/s and 4ml/s respectively.A time-densty cure was originated from data collected with the software of Time-Lapse.Results The summit time of most intense enhancement of arteriovena was significantly shortened when the flow rate was increased from 2ml/s to 3ml/s or 4ml/s,and the summit time was shortened without satistically difference when the flow rate was increased from 3ml/s to 4ml/s.Conclusions The circulation time test with a little volume contrast material can become a routine procedure of SCTA examination to determine the best delayed time.The suitable flow rate of intracranial vascular SCTA is 3ml/s.

0.05); 88.6%, 60.0%, and 51.4% for those in group A2, and 59.3%, 48.1%, and 25.9% for those in group B2, respectively (P 8 cm.

Objective To study and analysis the MRI characteristics of common intracranial ring enhanced lesions.Methods MRI studies of 32 cases intracranial ring enhanced lesions were reviewed retrospectively,all cases were confirmed by surgery or pathology and anti-inflammatory treatment.Results Among 32 cases of Intracraninal ring enhaneed lesions included 12 glioblastomas,10 metastases,5 brain abscesses,2 craniophrayngiomas,1 tuberculosis granuloma,1 neurocysticercose,1 multiple sclerosis.On the whole,the malignant tumors displayed obviously heterogeneous thickness of the walls,especially the inner walls were uneven and coarse,While the non-tumor lesions demonstrated,regular shapers,smooth inner walls and even thickness of the walls.Conclusion Intracranial ring enhanced lesions has a specific MRI finding and can supply important diagnostic value.

Objective To evaluate the effect of preoperative transcatheter arterial chemoembolization on proliferation of hepatocellular carcinoma cells. Methods A total of 136 patients with hepatocellular(HCC) underwent liver resection and pathologic confirmation. One to five courses of TACE prior to liver resection were performed in 79 patients (TACE group); with one to four courses of chemotherapy alone were performed in 11 patients (Group A); one to five courses of chemotherapy combined with iodized oil were performed in 33 patients (Group B); one to three courses of chemotherapy combined with iodized oil and gelation sponge were performed in 23 patients (Group C); one to three courses of chemotherapy combined with iodized oil, ethanol and gelatin sponge were performed in 12 patients (Group D). The other 57 patients only received liver resection (non-TACE group). The expressions of Ki-67 and proliferating cell nuclear antgen(PCNA) protein were detected by immunohistochemical method. Results The Ki-67 and PCNA protein expressions were significantly lower in Groups C and D than those in the non-TACE group (P