Objective To study the accuracy of the anteversion of femoral prosthesis in hemiarthro-plasty for treating femoral intertrochanteric fracture in the elderly.Methods Twenty femoral neck antever-sions of specimens were measured, which were control group(A).The femoral specimens were made into the model of femoral intertrochanteric fracture, which were installed femoral prosthesis according to minor trochanter(B),identifying the max diameter of cavum medulla(C),ocular estimating femoral condylar line ( D) ,combination of identifying the max diameter of cavum medulla and ocular estimating femoral condylar line( E) respectively.All the anteversion of femoral prosthesis were measured.Results The anteversion were:A group(8.98 ±4.31)°,B group (9.12 ±4.87)°,C group (9.57 ±6.49)°,D group (13.18 ± 5.83)°,E group (10.37 ±4.56)°respectively.The difference among the five groups was statistically sig-nificant.There was difference between D and A, there were no differences between B and A, C and A, E and A respectively.Conclusions In hemiarthroplasty for treating femoral intertrochanteric fracture, the an-teversion of femoral prosthesis is according to minor trochanter possibly; if the minor trochanter can not be got reduction, it is a good option according to combination of identifying the max diameter of cavum medulla and ocular estimating femoral condylar line to make sure the accuracy of the anteversion of femoral prosthe-sis.

The advantages of 4 common mobile technologies were assessed in view of the technological bottlenecks encountered in developing the mobile characteristic database in colleges and universities,the platform framework for developing WebApp-oriented mobile characteristic database in colleges and universities based on HTM15 was proposed with its developing steps,advantages and prospects described in detail in order to discover the new technologies for developing characteristic database in colleges and universities and promote its sharing.

Objective To explore the use of marginal kidneys from DBD (donation after brain death) donors and the indication for adult dual kidney transplantation.Methods Two pairs of graft kidneys were procured from two marginal adult donors.Dual kidney transplants were performed in two recipients.In each recipient,two kidneys were implanted in unilateral site of right lower quadrant and placed extraperitoneally,two separate extravesical ureterneocysto-anastomoses were performed.Results Delayed graft function (DGF) combined with acute rejection occurred in two cases,and all two cases recovered after treatments.Lymphocele and hematoma occurred in one case.No graft embolism and no urinary leak happened.Conclusions Adult dual kidney transplant offers an important use of kidneys from marginal donors to increase the number of organs available for transplantation.

Objective To observe the value of ultrasonography, MR and MSCT in diagnosing intravitreous autologous eyelashes. Methods Thirty-two New Zealand rabbits were averagely divided into 4 groups (A, B, C and D) randomly, and 1, 5, 10 eyelashes were implanted into vitreous body of rabbits respectively in group A, B, and C, whereas rabbits in group D (the control group) were only exposed to sham operation without implanting any eyelashes. After one week, all rabbits underwent ultrasound, MR and MSCT examination, then the specimens of vitreous bodies were obtained and observed pathologically. Results All the implanted intravitreous eyelashes were displayed with ultrasound. Intravitreous eyelashes in group A were not detected with MRI, whereas in 3 rabbits of group B and all of group C were displayed on T2WI, T2*WI and SWI sequences. MSCT detected intravitreous eyelashes in only 6 experimental animals. Conclusion Ultrasonography should be considered as the first choice for diagnosis of intravitreous autologous eyelashes. Different sequences of MRI have various advantages in diagnosing intravitreous autologous eyelashes, whereas the diagnostic value of MSCT is limited.

Objective To assess the value of diffusion weighted imaging (DWI) and apparent diffusion coefficient (ADC) in differential diagnosis of neuroendocrine carcinoma of the uterine cervix (NECUC) from other tumors.Methods A total of 12 NECUCs,39 cervical squamous cell carcinomas (SCC) and 21 cervical adenocarcinomas (CA) confirmed by pathology were analyzed retrospectively.All the patients underwent conventional MRI and DWI.The ADC values were measured and compared among NECUC,SCC and CA.Diagnostic performance of ADC was compared using receiver operating characteristic curves (ROC).Results The mean ADC values of NECUC,SCC and CA were (0.66 ± 0.11) ×10-3 mm2/s,(0.86 ± 0.11) × 10-3 mm2/s and (1.04 ± 0.17) × 10-3 mm2 / s,with statistical differences between any two groups (P ＜0.001).The optimal cutoff values of ADC for differentiating NECUC and SCC was 0.681 ×10-3mm2/s with a sensitivity of 94.9％,specificity of 75.0％ and accuracy of 90.2％.The optimal cutoff values of ADC for differentiating NECUC and CA was 0.824× 10-3mm2/s with a sensitivity of 95.2％,specificity of 91.7％ and accuracy of 98.9％.Conclusion The differences of the mean ADC value are helpful for the differential diagnosis of NECUC,SCC and CA.

Passive leg raising is widely used in clinic, but it lacks of specialized mechanical raise equipment. It requires medical staff to raise leg by hand or requires a multi-functional bed to raise leg, which takes time and effort. Therefore we have developed a new medical electric leg-raising machine. The equipment has the following characteristics: simple structure, stable performance, easy operation, fast and effective, safe and comfortable. The height range of the lifter is 50-120 cm, the range of the angle of raising leg is 10°-80°, the maximum supporting weight is 40 kg. Because of raising the height of the lower limbs and making precise angle, this equipment can completely replace the traditional manner of lifting leg by hand with multi-functional bed to lift patients' leg and can reduce the physical exhaustion and time consumption of medical staff. It can change the settings at any time to meet the needs of the patient;can be applied to the testing of PLR and dynamically assessing the hemodynamics; can prevent deep vein thrombosis and some related complications of staying in bed; and the machine is easy to be cleaned and disinfected, which can effectively avoid hospital acquired infection and cross infection; and can also be applied to emergency rescue of various disasters and emergencies.

Objective To study the influence factors of real-time shear wave elastography(SWE) on the elasticity of focal liver lesions (FLLs) measurement.Methods The mean Young's modulus of 160 FLLs were measured by SWE.The relation between elasticity with different aspects of FLLs were analyzed including postures (supine and left lateral position),respiratory phases (end of inspiratory and expiratory),the probe position (rib and intercostal space) and different operators.Results There were significant differences between different postures and respiratory phases in the elasticity measurement of FLLs by SWE (P ＜0.05).There was no significant difference between robe position and different operators in the elasticity measurement of FLLs by SWE(P ＞0.05).Conclusions The postures and respiratory phases can impact the elasticity measurement of FLLs by SWE.

Objective To evaluate the rehabilitating effect of hyperbaric oxygen on visual pathway lesions with blood oxygen level dependent functional magnetic resonance imaging (BOLD-fMRI) and diffusion tensor imaging (DTI). Methods Sixteen patients with visual pathway lesions (the study group) and twelve healthy volunteers (the control group) were assessed using BOLD-fMRI and DTI. After hyperbaric oxygen therapy, the patients in the study group were again assessed using BOLD-fMRI and DTI. The activated regions of the BOLD-fMRI scan and the fractional anisotropy (FA) value determined from the DTI were calculated. Results Before hyperbaric oxygen treatment, there were significant differences between control and study groups in their BOLD-fMRI activated regions and the FA values of their radiation optics (P≤0.01). After hyperbaric oxygen treatment, there were no significant differences. Conclusion Combining BOLD-fMRI with DT1 could be used to evaluate the rehabilitation effect of hy-perbaric oxygen treatment in patients with visual pathway lesions.

Objective To evaluate multi-slice three-dimensional CT angiography (MS 3D-CTA) for the follow-up of intracranial aneurysm clipping.Methods MS 3D-CTA of 16 patients with intracranial aneurysm clipping were retrospectively analyzed.The patients were scanned on a 16-slice spiral CT(GE Lightspeed pro).Volume rendering(VR),thin maximum intensity projection(thin MIP) and multi-planar reconstruction (MPR) were employed in image postprocessing in all cases.Results There were 17 clips in the 16 patients with aneurysm clipping.Six clips were located at the posterior communicating artery,5 at the anterior communicating artery,4 at the middle cerebral artery,and the remaining 2 clips were located at the pericallosal artery in 1 patient.There were no abnormalities found in the aneurysm clipping region in 7 cases by MS 3D-CTA.There were residual aneurysm in 2 cases,parent artery stenosis in 4 cases,and artery spasm in 3 cases.There was no parent artery occlusion and clip displacement in all cases.VR showed excellent 3D spacial relations between the clip and parent artery in 12 cases,and showed good relations in 3 cases.The 1 case with 2 clips in the pericallosal artery showed heavy beam-hardening artifacts.The size and shape of aneurysm clips were clearly depicted by MPR and thin MIP,while 3D spacial relation of aneurysm clip and parent artery were poorly showed.Conclusion MS 3D-CTA is a safe and efficient method for the follow-up of intracranialaneurysm clipping.Combined VR with MPR or thin MIP can well reveal postoperative changes after aneurysm clipping.

Objective To evaluate the diagnostic value of multi-slice three-dimensional computed tomographic angiography(MS 3D-CTA)for vertebrobasilar dolichoectasia(VBD).Methods MS 3D-CTA of 10 patients with VBD were retrospectively analysed.Source images were got by GE Lightspeed pro scanner.Volume rendering(VR)and maximum intensity project (MIP) were adopted to reconstruct 3D images in all cases.Twenty patients were selected as the control group by suspected cerebra[vascular diseases and underwent MS 3D-CTA at the same period.Enumeration data between the patient group and the control group was assessed by Wilcoxon.test.Results There were 2 types of 10 cases with VBD,including simple type(n=4)and saddle type(n=6).Compared with the control group of the length of the basilar artery(B 1,25.60 mm),the deviant degree(Bc,1.20 mm),the height(Bh,1.90 am),the length of the vertebral artery (V1,17.55 mm),the deviant degree(Vc,2.05 mm),and the diameter of BA and/or VA (Bw/Vw,3.05 mm),there is significant difference in the B1 30.20 mm,Bc 7.10 mm,Bh 8.80 mm,V1 23.00 mm,Vc 5.95 mm,and Bw/Vw 5.05 mm(P＜0.01,all).Conclusion The clinical performances of VBD is different,MS 3D-CTA is a very effective method for the diagnosis of VBD.