The advantages of non-contact medical monitoring radar were introduced compared with the traditional medical monitoring devices. The state of art of three kinds of typical medical monitoring radar schemes over the past decade was reviewed. Researches on breathing and heartbeat signal extraction, isolation and clutter suppression algorithms were summarized. The advantages and disadvantages of these algorithms were also pointed out. The prospects of non-contact medical monitoring radar were explored finally.

Objective To discuss application value for detecting sentinel lymphatic node(SLN) in patients with breast mass by subcutaneous injection SonoVue. Methods Forty-two cases with breast masses who were detected by conventional techniques were injected subcutaneously with 1.25 ml Sono Vue to the borderline of breast tumor at each 3,6,9, 12 points. The changes of contrast-enhanced ultrasound (CEUS) of the ipsilateral axillary SLN were observed and the start time of enhancement of lymphatic channel and lymph nodes, the position and numbers of enhancement of the lymph nodes, the time of regression were recorded. Compared with Methylene blue and surgicalbiopsy, the accuracy of detection of SLN by CEUS were evaluated. Results SLN were successfully detected in 30 of 42 patients, the detection rate was 71.4%. The total number of detected SLN was 40.Five nodes were detected in 5 of 10 (50%)patients with benign masses. Thirty-five nodes were detected in 25 of 32 (78.1%) patients with breast cancer. Fifty-seven SLN were successfully detected in 39 of 42 patients with Methylene blue, the accurate rate was 92.9%. Seven of 10 patients with benign masses and all 32 patients with breast cancer were Methylene blue positive. There were total 64 SLN found, including 11 with benign masses and 53 with lymph nodes metastasis of breast cancer cells. Conclusions The subcutaneous injection SonoVue is effective to detect SLN in patients with breast mass and apply clinical value for forecasting whether the lymph node metastases in patients with breast cancer.

Objective To appraise facial skin's quality conveniently and correctly.Methods The quality appraisal model for facial skin image was established based on improved BP nerve network algorithm,and the model was trained with the intrinsic pattern of the training sample,then the appraisal result was output after inputting indexes on the skin.Results For 23 sets of samples,the appraisal accuracy reached 95%.Conclusion The network model,with a high accuracy and a low error rate,is applicable to facial skin image quality appraisal.

The Koch's triangle of 110 human hearts (adults 70, children 40) has been dissected. The morphology, relationship and landmark of the atrioventricular node were observed and measured. Muscle bundles from the interatrial septum and coronary sinus orifice above and below are connected with the node. In the children the tendon of Todaro is usually tendinous, but in the adults, its posterior part is usually muscular. Deep in the triangle, there is a pyramidal space bounded by the left and right atrial walls and the top of the interventricular septum, in which there are vessels and nerves leading to the atrioventricular nodal area. According to their construction, the Koch's triangle is divided into five parts. The functional and surgical significance of these structures has been discussed.

Objective To assess the efficacy and safety of naloxone for treating cerebral infarction.Methods Randomized controlled trials(RCTs)and quasi-RCTs were identified from MEDLINE(1966-2005.4),EMBASE(1980-2005.4),Cochrane Controlled Trials Register(Cochrane Library issue 2,2005),CBMdisc(1978 -2005.4).We handsearched related published and unpublished data and their references.All naloxone treating for cerebral infarction were included.Data were extracted and evaluated by two reviewers independently with designed extraction form.RevMan 4.2.7 software was used for data analysis.Results Twelve RCTs involving 1075 patients were included.All the results of meta-analysis were listed as follows:(1)Total effective rate:compared with none control,5 studies showed that naloxone had a statistical difference with RR 1.24,95 %CI 1.05 to 1.46;(2)cure rate:compared with none control,naloxone had a statistical differences with RR 1.54,95%CI 1.09 to 2.18;(3)adverse effect:the number of accidence were few and representations were light.Conclusion Naloxone may increase the total effective rate and cure rate of cerebral infarction.More high quality trials are required.

The following report is on the early rehabilitation treatment of 35 cases with acute myocardial infarction,31 males and 4 females.The average age is 56.71±9.8 years.Among the 35 cases 15 are without complication of myocardial infarction and 20 are opposite.Besides the regular myocardial infarction treatment,the rehabilitation treatment is added after the initial period and before the patients leave the hospital, echocardiography, Holter monitor ECG and treadmill test are adopted to evaluate heart function.All the cases are without heart event during the early active treadmill test and rehabilitation treatment, so we conclude that it is safe and proper to early start treatment to acute myocardial infarction.The report will also discuss about the choice of the cases,the notes during the process and the evaluation of the cases after the treament and before leaving the hospital.

This study is to investigate the effects of paeoniflorin on cerebral blood flow and the balance of PGI2/TXA2 of rats with focal cerebral ischemia-reperfusion injury. A total of 72 SD rats (3) were randomly divided into 6 groups: sham operation group, cerebral ischemia-reperfusion model group (I/R gourp), low (10 mg.kg-1), middle (20 mg.kg-1) and high (40 mg.kg-1) doses of paeoniflorin groups and nimrnodipine group. Focal cerebral ischemia in rats was made by inserting a monofilament suture into internal carotid artery for 90 min and then reperfused for 24 h. The effects of paeoniflorin on neurological deficit scores and the infarction volume of brain were detected. Relative regional cerebral blood flow (rCBF) was continuously monitored over ischemic hemispheres by laser-Doppler flowmetry (LDF). The expression of COX-2 in hippocampal CAl region was estimated by immunohistochemistry and the contents of prostacyclin I2 (PGI2), thromboxane A2 (TXA2), and ratio of PGIJ2/TXA2 in serum were measured by ELISA kits. Paeoniflorin significantly ameliorated neurological scores, reduced the infarction volume, and increased regional cerebral blood flow relative to the I/R group. In addition, paeoniflorin could inhibit COX-2 expression and the release of TXA2 and prevent the downregulation of PGI2 induced by I/R injury. The neuroprotective effects of paeoniflorin against focal cerebral ischemia-reperfusion rats might be attributed to improve the supply of injured hemisphere blood flow and adjust the balance between PGI2/TXA2.

AIM:To investigate the potential of hematopoietic stem cells(HSCs)derived from mouse embryonic stem cells(ESCs)to reconstruct hematopoiesis in vivo.METHODS:Using a three-step method,a mice embryonic stem cell line,E14.1 was induced into hematopoietic stem cells.The cell markers with CD34+/Sca-1+ were identified by flow cytometry analysis,then HSCs(1?109 cells/L)from third-step were injected into SCID mice for observing teratoma formation.To validate function of HSCs,colonogenic cell assay was conducted and the hematopoiesis in lethally irradiated mice was reconstituted.RESULTS:The method of three-step differentiation,combined to use more hematopoietic stimulating factor promoted the E14.1 cell differentiation into HSCs with highest percent of CD34+/Sca-1+ cells(as high as 58.64%?4.20%)with more CFU-E,CFU-GM and CFU-GEMM populations.The cells showed the character of hematopoietic progenitors by Wright-Giemsa staining.Positive selected CD34+/Sca-1+ cells by magnetic sorting from third-step differentiation were transplanted into 7 lethally irradiated female mice while predominant hematopoietic reconstitution were observed in 10 d after transplantation,with 71.4%(5/7)successful engraftment rate.Three recipients showed that the cell population of the peripheral blood leukocytes,red blood cells and hemoglobin approached to normal index at 40 d after transplantation,but followed relative slow renew in platelet count.Survival rate in transplant group was 43%,compared to 100% mortality in control mice.Karyotyping assays confirmed the female mice with XY.CONCLUSION:The three-step differentiation and the culture conditions described here support the differentiation of mouse ESCs into HSCs.HSCs derived from mouse ESCs can reconstruct hematopoiesis.

Objective To study the effect of multi-disciplinary teamwork (MDT) nursing mode on perioperative care to breast cancer patients. Methods One hundred and twenty breast cancer patients undergoing surgical operations were evenly randomized into the observation and control groups by random digit number table. The control group was treated with routine nursing care and the observation group with MDT nursing mode. Result The rate of complications (like subcutaneous effusion, lymphatic edema and skin flap necrosis) in the observation group was significantly lower than that of the control group and the hospital stay was significantly shorter than that of the control group as well (all P<0.05). Conclusion The MDT nursing mode can reduce the rate of complications, shorten the hospital stay and relieve patient′s depression.