Objective To analyze the early CT manifestation of middle cerebral artery infarction(mMCAI).Method The case-control study of 36 cases with pairs were reviewed through comparative study for mMCAI cases and controls who had acute cerebral middle artery infarction but non-malignant,the two groups severely matched at age and sex.Results As the criteria of predictable the mMCAI,such as the insular ribbon sign,hypodensity development,hemispheric brain swelling,midline shift exhibited high specificity(80 6%,88 3%,97 2%,100%,respectively),but low sensitivity(52 8%,44 4%,16 7%,25%,respectively),Youdon Index

Objective To investigate relativity between the epidemiology of HPV and cervical carcinoma in Dali region,Yunnan province,through detecting the 13 high-risk human papillomavirus infection and Thinprep cytologic test in 2153 cases.Methods Real-time PCR was used to detect the 13 high-risk HPV (16,18,31,33,35,39,45,51,52,56,58,59,68) in2153 cases and 1604 cases were checked with Thinprep cytologic test.Results In 2153 samples,260 cases were infected with HPV,with the positive rate of 12.08％.The highest positive rates were ＞60 years old (18.18％),then ＞20 and ≤30 years old (14.41％);there was no significant difference in the positive rate among the various age groups (P =0.384).There were 1465 negative for intraepithelial lesion ormalignancy (NILM) cases (91.33％),86 atypical squamous cells of undetermined significance (ASC-US) and atypical squamous cells cannot exclude HSIL (ASC-H) cases (5.36％),32 low-grade squamous intraepithelial lesion cases (LSIL) cases (2.00％),21 high-grade squamous intraepithelial lesion cases (1.31％) through Thinprep cytologic test.The correlation coefficient is 0.893.Conclusions The infection rate of HPV in Dali region,Yunnan Province,has no significant difference among the various age groups.Application of 13 high-risk HPV infection test combined with Thinprep cytologic test could be more effective in screening cervical carcinoma.

Objective To provide anatomic proof for the localization in neck operation and clinical diagnosis of infection and tumor infiltration. Methods A total of 15 cadaver heads and necks were sectioned on transverse plan with cryosection. The layers and characteristics of the deep cervical fascia were observed. Results The deep cervical fascia was divided into four layers with the fasciae of the infrahyoid muscles being a single layer. The deep layer of the deep cervical fascia was subdivided into alar fascia and prevertebral fascia. The carotid sheath was composed of all the layers of the deep cervical fascia. Conclusion The model figure of the deep cervical fascia is obtained.

Objective To find out the best orientation and section for diagnosing rheumatic heart disease using multiplane transesophageal echocardiography (TEE). Methods The visible heart was compared with the images by multiplane TEE for the establishment of the best orientation and section for multiplane TEE for the diagnosis of rheumatic heart disease. Results The best orientation and section of mitral valve detected by multiplane TEE were the four chamber view at 0? orientation at the end part of esophagus. The best orientation and section of aorta valve were short axis section of the heart at 45? orientation and long axis section of the heart at 135? orientation at the middle part of the esophagus. The best orientation and section were the short axis section at 45? orientation and the oblique short axis section at 0? orientation of the aorta valve at the middle and the upper part of esophagus. Conclusion The best orientation and section of TEE based on the study of the visible heart are helpful to simplify the operation procedure of multiplane TEE and to shorten the examining time.

Objective To build the dataset of Chinese visible human female. Methods After undergoing macroscopical, CT and MRI examinations to exclude organic lesions, a young female cadaver of medium height was selected as the subject. After morphological measurement and vascular perfusion, the cadaver was embedded with 5% gelatin and cryopreserved in a -30 ℃ icehouse for 1 week. A digital milling machine TK 6350 (milling accuracy of 0.001 mm) was used to shave off slices of the body layer by layer from head to foot in a laboratory at -25 ℃. The successive cross sections were photographed with a high definition digital camera, and the pictures were put into a computer to establish a dataset of human body. By utilizing the image dataset derived from the successive cross sections, 3D reconstruction and stereodisplay of human structure were finished with a SGI Workstation which was equipped with an independently self developed software package for 3D reconstruction. Results The selected specimen, a 22 year old female native of Chongqing, was 1 620 mm in height, 54 kg in weight and died of non organic disease. CT scans were made in every 1.0 mm for head and neck and every 2.0 mm for rest parts, and the thickness for MRI scans was 1.5 mm for head and 3.0 mm for rest parts. For serial cross sections, the thickness was 0.25 mm for head and 0.5 mm for rest parts. Thus, a total of 3640 slices were obtained, and the photo for every slice was saved as a 36 MB file in a resolution of 6 291 456 pixels (3 072?2 048). Finally, the complete data files reached to 131.04 GB. Conclusion ① This is the first formally reported case of Chinese visible human female, suggesting that China becomes the second country owning visible human female dataset of her population. We set up a website for the purpose of exchanging ideas and information on this subject. So, the results are issued simultaneously on the Internet (http://www.chinesevisiblehuman.com).② According to US Visible Human Project(VHP), the data of the 3 junctional parts of their female cadaver were absent because the body was cut into 4 segments. Taking the age of 59 year old into account, the visible human female's body was not exactly perfect. The sections of 0.33 mm in thickness were saved to pictures at a resolution of 2 490 368 pixels (2 048?1 216). While, the first Chinese visible human female reported here is a young female without organic disease or lesion. No sectional datum is lost for being acquired from successive sections of the whole body. The resolution of cross sectional image reaches to 6 291 456 pixels (3 072?2 048).

Objective To achieve computer visualization of the first Chinese visible male and female Methods After acquisition of the dataset of the first Chinese visible male and female (2 518 cross sections were obtained from the visible male, the complete data files take up 90 468 GBs; while 3 640 cross sections from the female, the complete data files take up 131 04 GBs ), we processed 2 D images in an SGI Workstation and on P4 computer respectively Then, image registration was performed through reserved scaling point Reconstruction was achieved by two approaches: volume rendering reconstruction and surface rendering reconstruction Results We visualized the whole body and special parts of Chinese visible male and female on an SGI Workstation and a personal computer respectively Furthermore, by optimizing 3 D reconstruction and data processing technique, interactive 3 D visualization of the dataset was achieved Conclusions ①The dataset of the first Chinese visible male and female proves to be eligible for 3 D visualization research ②The platform setup of interactive 3 D visualization of Chinese visible male and female dataset provides foundation for digital human anatomy and virtual surgery ③The models of human organs and parts built through data segmentation, classification, registration and drawing lay basis for rendering complex structures of the whole human body delicately

Objective To establish more detailed dataset of Chinese visible human male. Methods After undergoing macroscopical, CT and MRI examinations to exclude organic lesion, a young aged, middle sized male cadaver was selected as the subject. First, morphological measurement and vascular perfusion were performed. Second, after embedding with 5% gelatin, the cadaver was put in ice house and frozen to -30 ℃ for 1 week. Third, TK 6350 numerical control milling machine (milling accuracy of 0.001 mm) was used to shave off slices of the body layer by layer from head to foot at -25 ℃ in low temperature laboratory. Fourth, the successive cross sections were photographed with high resolution digital camera and scanned into an animation computer. Thus, data acquisition from cadaver model was completed to obtain structural dataset of the human body. Results The selected sample was a 21 year old, 1 820 mm in height, 66 kg in weight male died due to non organic disease. CT with 1.0 mm slice thickness for the head and neck and 2.0 mm for the rest of the body was performed. MRI with 1.5 mm slice thickness for the head and neck and 3.0 mm for the rest of the body was also performed. A total of 18 398 serial cross sections with the thickness of 0.1 mm of each section were obtained. The digital photographs were sampled at a resolution of 10 989 056 (4 064?2 704) pixels. The data file of each section occupies 62.9 MB. The complete data files occupy 1 157.23 GB. The research results are issued simultaneously on the Internet (http://www.chinese visiblehuman.Conclusion ① Review of the related literatures reveals that the thinnest thickness of the reported cross section of the visible human dataset is 0.2 mm(the thickness of the sections of the skull base of the first case of Chinese visible human reported by our research group is 0.1 mm.), and the slices consist of several thousands of serial cross sections with several millions of pixels. The data files occupy several tens of GB or more than 100 GB. However, the thickness of the cross sections of the whole body of the dataset achieved in our research is 0.1 mm. The total slices consist of 18 398 serial cross sections with the photographic resolution of 11 million pixels and the total data file reaches 1 157.23 GB. The three indexes mentioned above are elevated by 1 log unit. ② We have solved the key technical problems in data acquisition of visible human such as super thin serial cross sectioning, enormous quantity of data storing and display of tiny blood vessels.