Objective To assess the value of emergency ultrasound in the diagnosis of patients with abdominal trauma. Methods Retrospective study was performed on 245 patients with abdominal trauma. All patients were examined with emergency ultrasound, and their sonographic findings were compared with their CT and operative findings. Results 1) Abnormal signs suggestive of injury were detected in 346 organs among 245 patients, and correct diagnosis was made in 299 cases, while misdiagnosis occurred in 47. The overall accuracy of sonographic diagnosis was 86.4%. 2) The accuracy rate of sonographic diagnosis of various organs: for splecn, liver, kidney, mesentery, bladder, retroperitoneal injuries were 93.4%, 91.9%, 80.9% and 51.3% respectively. 3) The accuracy of sonography on the free fluid and retroperitoneal fluid were 100% (213/213) and 89.5% (51/57) respectively. Conclusion Emergency sonography to evaluate patients for injury caused by abdominal trauma is highly accurate.

ObjectiveTo investigate the effect of a cervical back muscle trainer. MethodsA cervical back muscle trainer designed by ourself was used in 128 patients with different kinds of cervical spondylosis. The situation of pain and activity of daily life of the patients before and 1 month after treatment were recorded and compared. ResultsThe neck pain of all of the patients nearly completely disappeared in a month and their activity of daily life improved significantly(P<0.01). ConclusionThe cervical back muscle trainer can improve the stability of cervical vertebrae through increasing the strength of the cervical back muscle, which can be used as an assistant rehabilitation approach of all kinds of cervical spondylosis.

Objective To probe into the quantizing rule of the thoracic vertebra rotation.Methods6 healthy corpses specimen were fixed on a wooden apparatus and rotated from 0° to 90° for X-ray examination.A X-ray examination was taken at each 5° rotational point.The characteristic of the image at each examinational point was observed.ResultsThere was radiology characteristic at each rotational point.ConclusionThe thoracic vertebra rotational degree could be quantized by X-ray examinations.

Objective Using MRI techniques and the FreeSurfer software package to research the occipital lobe's surface area in children with ametropic amblyopia.Design Prospective,nonrandomized clinical trial.Participants The amblyopic group included 10 children with ametropic amblyopia.The control group included 10 children with normal sight.Methods The brain MRI scan was per- formed with SIEMENS AVANTO 1.5 Tesla scanner.For the surface area analysis,3-demensional MPRAGE images were analyzed with FreeSurfer software package.Main Outcome Measures Occipital lobe related surface area(cuneus,later occipital,lingual,perical- carine)of bilateral hemisphere.Results No difference was between the ages of the two groups.The surface areas of the lingual,pefical- carine,cuneus of bilateral hemisphere and lateraloccipital on the left hemisphere in amblyopic patients were smaller than those of nor- real children(P

Objective To investigate the cortex gray matter configuration in amnestic mild cognitive impairment(aMCI)patients using MRI technology, FMRIB software library(FSL)and Freesurfer software.Methods Twenty aMCI patients and 20 normal control subjects were recruited and studied. They were matched by age, sex and education. All the patients and healthy volunteers underwent MRI scan using SEMENTS trio 3.0 T MRI. The subtile three-dimensional brain images were obtained using high resolution scanning technique. The imaging data was processed and analyzed with FSL and Freesurfer software. The cortex gray matter density and thickness in different brain areas of aMCI patients and normal control subjects were calculated and compared using statistic analysis. Results Compared to that in the controls, cortex gray matter density in the aMCI patients showed remarkable decreases in left frontal lobe, temporal lobe,parietal lobe, and slight decrease in right thalamus, temporal lobe and island lobe; For cortex thickness,aMCI patients showed significant decreases in left anterior cingulate gyrus((2. 19 ±0. 24)mm), inferior parietal lobe((2. 27 ± 0. 15)mm), bilateral parahippocampal gyrus((2. 03 ± 0. 15),(2. 04 ±0. 17)mm), precentral gyrus((2. 20 ± 0. 11),(2. 31 ± 0. 19)mm), postcentral gyrus((1.88 ± 0. 11),(1.82 ± 0. 09)mm), superior frontal gyrus((2. 42 ± 0. 34),(2. 40 ± 0. 28)mm), middle frontal gyrus ((2.31±0.31),(2.33 ±0.29)mm), supramarginal gyrus((2.53 ±0.33),(2.55 ±0.23)mm),temporal pole((3.41 ±0.68),(3.30 ±0.56)mm)and transverse temporal gyrus((2.04 ±0. 12),(2. 01 ± 0. 11)mm; t = 2. 13-3.75, P ＜ 0. 05), no significant changes in the other areas(t = 0. 09-1.88, P ＞ 0. 05). Conclusions Our results suggest that there are significant changes in gray matter configuration in cortex of aMCl patients. The changes of cortical thickness is earlier than the changes of gray matter density.

In recent years,with the increasement of intracranial pressure detection accuracy,the use of intracranial pressure detection in clinic become more common.Various of technologies are used in clinic that can be divided into invasive methods,such as epidural catheter,subarachnoid bolt,intraventricular catheter,fiberoptic catheter and micro-sensors transducer,and non-invasive methods,such as evoked otoacoustic emissions,transocular method,transcranial doppler,imaging method and magnetic induction method.This paper reviews the physiological basis of intracranial pressure detection and common intracranial pressure detection techniques,especially on noninvasive intracranial pressure detection methods.Advantages and disadvantages of different intracranial pressure detection methods are listed,and an outlook of the development of non-invasive intracranial pressure detection technology are made.

BACKGROUND:Molars are characterized by multi-root, multi-root canal, multi-directional, different geometric shape and distribution. Single-root canal teeth post-core theory was used to guide molar repair in the clinic. It is easy to cause root canal perforation or vertical fracture due to excessive post preparation. Therefore, it is necessary to make further study and investigation in the design of fiber post-resin core for repairing molars. OBJECTIVE: To evaluate the clinical therapeutic effects of fiber post-resin core with different numbers of posts in the repair of molar residual roots and crowns. METHODS: A total of 54 human molar residual roots and crowns with sound root canal filing in 48 patients were selected and restored with fiber post of different numbers and resin core as wel as complete coronal restoration. There were 17 cases (20 samples) restored with single fiber post core, 16 cases (18 samples) restored with double fiber post cores, and 15 cases (16 samples) restored with three fiber post cores. They were folowed up for 24 months and the repair results were compared. RESULTS AND CONCLUSION:After 24 months of folow-up, the success rates were 85%, 94% and 94% in the single fiber post, double fiber post and three fiber post groups, respectively, and no significant difference was detected among the three groups. Five failures were observed among 54 teeth: three cases of fiber post shedding in the single fiber post group, one case of fiber post shedding in the double fiber post group, and one case of fiberpost shedding in the three fiber post group, and no root fracture occurred. Three kinds of fiber post-resin cores for repairing molar residual roots and crowns can get a better short-term clinical result. The repair effects were not different because of the different numbers of fiber posts.

OBJECTIVE:To study the preventive and therapeutic actions of L-arginine on pulmonary hypertension induced by high pulmonary blood flow volume.METHODS:Male SD rats were randomly divided into control group(n=6),shunt group (n=7) and shunt+L-arginine group(n=8).Abdominal aorta-inferior vena cava shunt was performed to make the blood flow from left to right,11 weeks later,mPAP was detected with right cardiac catheter;the structure of pulmonary vessels and expression of PCNA of smooth muscle cells were observed.RESULTS:The mPAP of shunt group was obviously higher than that of control(P

Objective To investigate perilla oil on human breast cancer MCF7 cell growth inhibition and induction of apoptosis , and provide a theoretical basis for the development of perilla oil anti-tumor .Methods Breast cancer MCF7 cells were treated with different dilutions of perilla oil to do tumor cell growth inhibition MTT experiment ,to observe the changes in the nuclear morpholo-gy of apoptotic cells with Hoechst 33258 and PI staining and fluorescence microscopy ,and to detect rate of apoptosis and apoptotic peak with flow cytometry .Results Perilla oil inhibited the proliferation on human breast cancer cell line MCF7 with a time-and concentration-dependent manner .Typical apoptotic nuclear morphological changes could be observed with Hoechst 33258 and PI staining under a fluorescence microscope .Detected by flow cytometry ,apoptosis rate was increased with time and concentration . Conclusion Perilla oil can inhibit human breast cancer MCF7 cell proliferation and induce apoptosis ,suggesting that it may be used as an anticancer drug in clinical practice .