This paper presents a motion rehabilitation-training instrumentfor stroke patients.Taking linear motion mode and circinal motion mode as training trajectory. we are aimed to help patients to accomplish nerve rehabilitation according to preset motion trajectory. Rehabilitation-training instrument takes pneumatic artificial muscle as a motion driver.Pneumatic artificial muscle has the following characteristics,such as,light weight,strong power,good flexibility,safety in use, easiness and cleanliness in source, etc. and it is suitable for rehabilitation medical treatment.The compression of gas,the nonlinearity of pneumatic artificial muscle and the existence of inherent hysteresis in the joint make the driving joint position in pneumatic artificial muscle be poor controlled and the response time be delayed,and thereby,the trajectory planning problem will be influenced directly.Therefore,we adopts proportional-integral-derivative (PID) controller by neural network to control the position of pneumatic artificial muscle.

0.05),while combined the targeted scan with three-phase enhanced CT scan,the sensitivity,the specificity and the corresponding rate in qualitative diagnosis of pulmonary nodules were 97.3%,83.3% and 80.6% respectively.Conclusion The targeted CT scan in combination with three-phase enhanced CT scan can improve the sensitivity and the accuracy in diagnosing pulmonary nodules.

Objective To evaluate the difference of diagnostic efficacy and complications between 18 and 20 gauge(G)core needle in transcutaneous lung biopsies under CT-guided.Methods Transcutaneous lung biopsies were performed using 18G (group A) and 20G(group B) core needles in 60 cases respectively.Their diagnostic efficacy and complications were compared.Results In group A, 45 of48 patients with lung cancer were accurately diagnosed by biopsies( 93.8% ) and another 3 cases were false-negative( 6.2%). 10 of 12 patients with benign lesions were diagnosed by biopsy as well . In group B , 42 of 46 patients with lung cancer were diagnosed by biopsy ( 91.3%) and another 4cases were false-negative (8.7%) .10 of 14 patients with benign lesions were accurately diagnosed by biopsies . Pneumothorax was found in 20 cases in group A , only 2 cases of which were handled with drainage,whereas a little pneumothorax was found in 8 cases in group B without special handling.No differences between two groups in diagnostic accuracy,false-negative rate and pneumothorax rate found . Conclusion There are more complicated with pneumothorax and much severe degree in group A than that in group B,but the diagnostic accuracy,false-negative rate and pneumothorax rate are not significantly different between two groups.

Objective To summarize the features of signs of digital subtraction angiography (DSA) of small intestinal stromal tumor (SIST) with different invasion risk degrees.Methods The clinical data of 15 patients with SIST who were admitted to the West China Hospital of Sichuan University from September 2008 to June 2010 were retrospectively analyzed.The signs of DSA of SIST with different invasion risk degrees were analyzed.Results The result of DSA showed that 1 patient with low-invasive SIST presented draining veins and clear edge with homogeneously stained tumor in arterial phase.Enlarged tumors vessels,sharp edges and uniform tumor staining were observed in 4 patients with low-invasive risks.Enlarged and disordered tumor vessels and irregular shape were observed in 4 patients with moderate-invasive risks,and 3 of them showed heterogeneity stained tumor.Obvious enlarged and disordered tumor vessels,unclear edge and uniform tumor staining were showed in 6 patients with high-invasive risks.Conclusions The higher invasive risks correlates with more irregular and disorder tumor vessels.The tumors with lower-invasive risks have more regular and trim blood vessels.

[Objective]For revealing the definition of the concept of the Yin of liver and the Yang of liver ,and its historical evolution. [Method]The definition of the concept of the Yin of liver and the Yang of liver and the mainstream view of Yin and Yang of before the Song Dynasty, Song Dynasty and modern is investigated in this paper. The definition of the concept of the Yin of liver and the Yang of liver of different periods, different ideological background and different mainstream view of Yin and Yang is clarified by historical investigation. [Result]Because of the influence of Confucius studies, there is not the definition of the concept of the Yin of liver and the Yang of liver based on the object of liver in the TCM theory of Han and Tang dynasties. The Yin of liver and the Yang of liver mainly refer to the yin qi and yang qi in the liver. Because of the influence of neo-confucianism, the concept of the Yin of liver and the Yang of liver based on the object of liver was established in the TCM theory of Song and Ming dynasties. The Yin of liver and the Yang of liver mainly refer to the body and function of liver. Under the background of modernization of TCM, the concept of the Yin of liver and the Yang of liver based on the object of liver was established in the basic theories of TCM. However, there is a controversy of the concept of the Yin of liver and the Yang of liver, because of the effect of modern philosophy and science, ignoring the change of Chinese philosophy. [Conclusion]The clear concept of the Yin of liver and the Yang of liver of different periods, different ideological background and different mainstream views of Yin and Yang will reduce the influence of the fictional historical. Whether in ancient literature research, the liver like zang-fu theory of TCM theory, research, or the modern liver zang-fu theory of TCM, and establishing the theory of Chinese medicine has a positive meaning.

Objective To investigate the feasibility of double low scanning technique using the gem spectrum CT coronary artery angiography among the patients at low heart rate≤ 65 beats per minute.Methods This prospective study was approved by the institutional re-view board with patient informed consent.Ninty patients (heart rate≤65 beats per minute)were randomly devided into 3 groups.Group A un-derwent spectral CCTA with iodixanol (Visipaque,270mg/mL)and low scanning technique,Group B conventional CCTA with iohexol (Omnipaque,370 mg/mL)and Group C conventional CCTA with iodixanol (Visipaque,270 mg/mL),Routine scan mode was used in Group B and Group C.Prospective ECG gating mode was used in all groups.120kVp polychromatic images with FBP algorithm (Group B and Group C)were reconstructed for conventional CCTA,60 keV monochromatic images with FBP algorithm (Group A) or with a fixed blending level (40%)of ASiR (Group A1 )were reconstructed for spectral CCTA.Compared the image quality of four groups and ED in three groups.Results The difference was ststistically significant between four groups with the CT value,im-age noise,SNR and CNR of coronary (each P<0.001.Group A1 has the highest SNR and CNR.Group C has the lowest image noise.There were no significant difference of coronary score between group A1 and group B(χ2=0.01,P=1.000)).There was significant difference of coronary score between group A and group B (χ2=22.428,P<0.001),group B and group C (χ2=39.005,P<0.001), group A1 and group A (χ2=21.854,P<0.001).Effective radiation dose in the group A(ED2.60±0.26 mSv)was lower than that of group B (ED3.02±0.36 mSv)(t=3.738,P=0.001)and group C (ED3.11±0.23)(t=3.725,P=0.001).Conclusion Double low scan-ning technique using the gem spectrum CT coronary artery angiography with 40% blending level of ASiR is able to provide better im-age quality than using conventional CCTA and to reduce the effective radiation dose and contrast dose.

Objective]This paper is for the theoretical formation of clear livering factors development process . [Method]Adopt the method of literature investigation, explore the meaning of liver governing smoothing and dispersing Qi. [Result]It has three meanings: Like smooth doesn't like depression;dredge(The ascending and descending of Qi);spread. The support theory behind it is:Five elements theory;The movement theory of Qi;Zhu Zhenheng ’ s theory of“Liver Governs Smoothing and Dispersing”. Relationships between three meanings and support theory is:With five elements theory explaining the function of the liver governing smoothing and dispersing Qi ,it eventual y uses the movement theory of Qi; With Zhu Zhenheng ’s theory of“Liver Governs Smoothing and Dispersing”, explain the function of the liver governing smoothing and dispersing Qi is different from the the movement theory of Qi. [Conclusion]Liver governing smoothing and dispersing Qi is a new theory of reconstruction by modern scientific theories and methods.

[Objective]To explore the biomechanical stability of fixation with two and three cannulated compression screws in treatment of the adductive femoral neck fractures by the three-dimensional finite element analysis(FEA).[Method]Two FEA models of two screws and three screws for adductive femoral neck facture fixations were set up to investigate the simulated loading of three different conditions.[Result]At the condition of the heel touching the ground and the middle position,there was no difference in the biomechanical stabilities of the two models.However,at the condition of the tiptoe departing from the groud,the model of three screws fixation was better in torsion resistance and stretching resistance.[Conclusion]The biomechanical stability of fixation with two screws is determined by the direction of loading.Three cannulated compression screws fixation provides better biomechanical stability.

polysaccharide has become a research focus in tumor therapy because of possessing positive immunomodulating and antitumor activities.At present,a series of polysaccharides with novel structures and unique function have been isolated from marine resources,which are potential choices for anti-tumor drugs.However,few reviews are reported about the antitumor mechanism of marine polysaccharide,so the progress in research of antitumor mechanisms of marine polysaccharide are reviewed in this paper.