Objective To compare the outcomes of Yang-Monti channels and appendix in the practice of catheterizable continent urinary conduits.Methods Retrospective analyses were conducted in 27 cases with neurogenic bladder from July 2009 to December 2015,including 8 male and 19 female patients whose average age at surgery was 7.6 years old (range:1.5-16 years).The average bladder volume is (203.8 ± 126.0) ml.The bladder compliance values of 24 cases are lower than 20 ml/cm H2O.Seventeen cases had urinary infection combined with fever before surgery,while 6 cases had stress urinary incontinence and 17 cases had dysuria.Seven cases including 2 male patients underwent urinary diversion with YangMonti channels (YM group) and the average age at surgery for patients was 6.7 years old (range:4-16years).Twenty cases including 6 male patients underwent urinary diversion with appendix (AP group) and the average age at surgery for patients was 8.0 years old(range:1.5-14 years).The 3-day urinary diaries were collected in all cases including their records of average catheterization interval,average catheterization volume,stoma stenosis and stoma leakage.The data between the two groups was compared and the statistical analysis was performed.Results Of the 7 patients undergoing Yang-Monti channels,2 cases underwent open surgery and 5 cases underwent laparoscopic surgery in which 2 cases transferred to open surgery.The stoma stenosis occurred in 1 case and the stoma leakage occurred in 1 case.The average catheterization volumc is (239.3 ± 76.2) ml and the average catheterization interval is (2.8 ± 0.9) h.Six patients in the group were followed up less than 3 years,of which the average catheterization interval is (2.6 ± 0.8) h.Of the 20 patients undergoing appendix channels,3 cases underwent open surgery and 17 cases underwent laparoscopic surgery in which 1 case transferred to open surgery.The stoma stenosis occurred in 1 case and the stoma leakage occurred in 2 cases.The average catheterization Volumee is (257.0 ± 67.4) ml and the average catheterization interval is (3.9 ± 0.9)h.Six patients in the group were followed up less than 3 years,of which the average catheterization interval is(3.5 ± 1.0) h.There was no difference in stoma stenosis and stoma leakage and average catheterization volume between the two groups (P ＞ 0.05).There was no difference in average catheterization interval between the patients of two groups who were followed up less than 3 years (P ＞ 0.05).Conclusions Yang-Monti conduits are durable and reliable,which was similar with appendix conduits.

Objective To evaluate the value of multi-slice spiral CT(MSCT) post-processing technique in diagnosis of spinal injury. Methods CT materials in 44 cases of spinal injury were retrospectively analyzed,all case were scanning with 16-slice helical CT,the images were passing on an independent workstation for MPR and SVR technique,and compared with axial 2D imaging of CT . Results MPR and SVR images could show the fracture line and displacement of fractured osseous fragments and spatial relationship of structure clearly,MPR images could show small fracture line and dislocation of joint actually. Conclusion MPR and SVR images are important supplement to axial 2D images,the axial imaging combined with various reconstruction technique can provide the space structure of spinal injury ,and play an important role in selecting therapy project and evaluating prognosis.

Objective To evaluate the value of multi-slice spiral CT(MSCT)post-processing technique in diagnosis of small peripheral lung cancer .Methods CT materials with small peripheral lung cancer in 20 cases were retrospectively analyzed ,after 16-slice spiral CT scanning ,both plain and contrast ,and reconstructed using 1mm slice thickness ,the images were passing on an independent workstation for SSD and MPR technique .Results the images of SSD and MPR could reveal the relation between focus and surrounding organs in different dirctions,also revealed the features of pulmonary carcinoma stereos copically and directly,could show actually lobulated sign ,burr sign,pleural indentation sign and vessel convergence sign with small peripheral lung cancer ,the SSD imaging was superior in judging the presence of the lobulated sign .Conclusion It is very valuable for diagnosis of small peripheral lung cancer that application of SSD,MPR and two dimensional reconstruction。

Objective To investigate the value of X-ray Knife in the stereotaxis radiotherapy of lung cancer.Methods 52 cases with pulmonary carcinoma were treated with X-ray knife,before and after that,general radiotherapy was applied.After whole radiotherapy,2 or 3 months later,all patients were followed by CT scan.The changes of tumor and clinical appearances were compared before and after therapy.The curative effect was estimated according to clinical appearances and CT findings.Results 6 patients were complete response(11.5%) ,29 patients were partial response(55.8%) and 13 patients were no changes or reduced less than 50%.The total responsive rate was 92.3%.Conclusion The treatment of lung cancer with X-ray Knife can give tumor accuracy high dosage irradiation.The short term therapeutic effectiveness is significant and safe on clinical.

Objective To evaluate left ventricular function in the way of intracavitary vortex by vector flow mapping(VFM),and to demonstrate the formation and variation of the vortex. Methods Twenty-six patients with dilated cardiomyopathy(DCM) and 44 healthy controls were involved. The velocity distribution imagings on the section plane of the flow in the left ventricle were obtained by VFM, the location of the vortex and its variation in every phase of cardiac cycle were focused,and series parameters were measured,such as the diameter of the vortex (transverse diameter, vertical diameter), number of the vertex. Results relaxation(e) period. Vortices were observed mostly during diastolic period, nearby the anterior leaflet of mitral valve,middle upper 1/3 of left ventricle,and their shapes changed 2 - 3 times. The diameters of the vortex (transverse diameter,vertical diameter) , number of the vertices in one cardiac cycle during 7 phases mostly nearby the cardiac apex, middle lower 2/3 of left ventricle, and their shapes changed 4 - 5 times.Compared with control group,the diameters of the vortex (transverse diameter, vertical diameter) during 7 phases in DCM group were bigger,and number of the vertices were more ( P ＜0.01 ). The diameters of the vortex (transverse diameter, vertical diameter), number of the vertices within DCM group in one cardiac cycle during 7 phases were significantly different ( P ＜ 0.01 ). Conclusions VFM can demonstrate the variation of intracavitary vortex. Vortex in DCM group were significantly bigger than those of control group.

BACKGROUND:Integrated Traditional Chinese and Western Medicine minimaly invasive treatment for halux valgus based on wrapped curtain method with “8”-shaped bandage and sub toe pad external fixation has been used for a long time in the clinic. This method abandons the internal implant fixationandexternal plaster fixation. After surgery, patients could take care of themselves. However, theactivity of the broken end may cause fracture nonunion, which once aroused scholars’ question. Recently, with the continuous improvement of foot biomechanics research, foot finite element model and applications become a reality.
OBJECTIVE:To evaluate thestability of osteotomy after the operation of wrapped curtain method with“8”-shaped bandage and sub toe pad external fixation on the basis of static finite element method.
METHODS:A young female volunteer with halux valgus was selected, whose body weight was 58 kg, and right foot halux abductor valgus angle was 24°; intermetatarsal angle was 13°; proximal articulator set angle was 7°; distal articulator set angle was 7°. CT was used to scan the right foot. ABAQUS software was applied to establish a finite element model of right foot halux valgus bone, and model of the first metatarsal neck minimaly invasive osteotomy was simulated based on wrapped curtain method with external fixation. Von Mises stress and displacement at the osteotomy endwere calculated.
RESULTS AND CONCLUSION:(1) The maximum stress was 0.067 MPa without external fixation, and the maximum stress was 1.258 MPa with the external fixation. Stress was mainly distributed in the outer edge of the osteotomy. (2) The maximum absolute displacement was 0.363 mm without external fixation, and the maximum absolute displacement was 0.716 mm with external fixation. The two largest displacements were both in the Z-axis direction. Statistical analysis confirmed that the four nodes absolute displacement and stress were significantly different (P< 0.01). (3) The maximum relative displacement was 0.101 mm. The maximum relative displacement was 0.046 mm with external fixation. The maximum relative displacement without external fixation was-0.102 mm and occurred in the Z-axis. The maximum relative displacement with external fixation was 0.110 mm and occurred in the Y-axis. (4) One-way analysis of variance confirmed that the four nodes relative displacements were not statisticaly significant in X-axisand Y-axis (P> 0.05). The four nodes relative displacements were statisticaly significant in Z-axis (P< 0.05). (5) These findings suggest that the external fixation based on wrapped curtain method after halux valgus surgery could effectively reduce osteotomy displacement. The moderate stress and elastic fixation are conducive to fracture healing.