扫描行

In Part 3, we show our innovative points: Probability analysis based obstacle avoidance unit, human-machine interface based on serial scanning method, light-seeking radar, and self-adaptive position control.

本设计在特色部分论文分析了以Mega8芯片为主基于概率分析的避障单元的设计与实现，串行扫描方式实现的人机接口，寻光雷达，小车位姿控制等内容。

Methods Eighteen patients with biliary calculi underwent volume scanning using spiral CT (Hispeed Advantage CT/i GE ). All data were transferred to computer workstation, and CT biliary virtual endoscopy images with pseudocolor encoding were generated from the volumatric data using the Navigator Smooth soft-ware.

选择18例胆道结石患者行横轴面CT扫描，将容积数据重建后输入计算机工作站，用三维导航软件功能重建成仿真内窥镜图像，调整阈值并用伪彩色技术立体观察结石。

Methods 45 patients have pathologically proven NPC were studied prospectively with dynamic computed tomography. Recorded the perfusion data of the of neck metastasis lymph node and uninvolved lateral pterygoid muscle.

对经病理证实的45例鼻咽癌行治疗前螺旋CT动态扫描，计算颈部转移淋巴结和未受侵犯的翼外肌的灌注数据。

Results (1) Eight cases of radiolucent ureteral calculus were clearly showed by nonenhanced spiral CT.

注射对比剂后 10～ 15min行螺旋CT容积扫描，在工作站利用软件进行图像后处理，获得泌尿系立体图像。

Methods 136 patients with suspected or diagnosed coronary artery disease were studied with 16-slice spiral CT. Choosing left and right coronary artery in the axial enhancement scanning images, previewing 10 images at 0%-100% of the cardiocycle in increments of 10%, We evaluated grade of the image quality and number of the ratable coronary artery in different reconstruction phases. We selected the most clear image of left and right coronary artery, and recorded the phase. Raw data were reconstructed with thin images at the best phase.

对136例临床诊断或拟诊冠心病的患者行16层螺旋CT冠状动脉造影，选取增强扫描R-R心动周期0%~100%的10组图像（间隔10%），评价不同重建时相冠状动脉各主要分支的图像质量等级及可评价冠状动脉数，选择显示最清晰的一组记录时相。

Methods:Fifty paired embalmed cadaveric humeri (twenty-five pairs:fourteen from male donors and eleven from female donors) were scanned in medial-lateral and anterior-posterior position according to the humeral retroversion by CT. Images of the humeri in the transverse planes at the lowest border of neck,20mm and 40mm distal of LBN(LBN-20、LBN-40), isthmus, head-neck anterior-posteriorwere obtained. Sixty-one extracortical and intracortical parameters were measured exactly by image analytic computer software that included offset, head position, head-shaft angle, head to tuberosity height, head thickness, curvature radius, articular surface arc, neck diameter, isthmus position, proximal and distal border of isthmus, maximum coronal and sagittal diameter of medullary canal and thickness of cortical bone in four planes, including LBN, LBN-20,LBN-40 and isthmus.

50根成对防腐肱骨(男14对，女11对)按肱骨头扭转角置于冠状位和矢状位，行肱骨全长，头颈矢状面，解剖颈下缘及其下20mm、40mm，髓腔狭窄部四平面CT扫描，由CT软件测量冠、矢状位髓腔内外参数共61项，包括头心—干轴距，头位置，头干角，头—结节高度差，头厚度，头半径，关节面张角，解剖颈直径，髓腔狭窄部位置，解剖颈下缘及其下20mm、40mm和狭窄部四个平面髓腔的最大冠、矢状径，皮质骨厚度等。

Methods: 10 cases of normal brain specimens with axial and sagitta scans of SE sequences were chosen on MRI. Anatomical features of cerebral sulci were recorded and measured.

取10具非病变死亡的头颅标本，经福尔马林液固定后行MRI扫描及断层切片；测量大脑主要沟回的长度并对邻近脑沟回形成的特殊解剖标志进行了辨识。

Accuracy between two groups was calculated byχ~2 test.Calculate the average effective radiation dose of the 30 patients.Results In group A,seventeen patients underwent both DSCT coronary angiography and SCAG,among 255 segments of 17 patients,105 lesion sites of 70 segments were diagnosed stenosis or obstruction,of them,95 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 90.48%.The agreement of two methods have a high agreement(Kappa =0.853).In group B,13 patients underwent both DSCT coronary angiography and SCAG,among 195 segments of 13 patients,73 lesion sites of 57 segments were diagnosed stenosis or obstruction, of them,65 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 89.04%.The agreement of two methods have a high agreement(Kappa =0.835). There was no significant difference(χ~2=0.098,p＞0.05) between the accuracy of two groups.The effective radiation dose of 30 patients was 3.67±0.43 mSv.Conclusion Compared with SCAG,prospectively ECG-gated transverse DSCT is a valuable examination to detect and diagnose coronary artery disease with a low dose coronary angiography.The accuracy of the DSCT is approximate to the SCAG.There was no significant difference between the accuracy of two groups.

结果200例患者均成功完成了适应性前瞻性心电门控双源CT冠状动脉血管成像；30例同期行SCAG检查的患者，A组17例：HR≤75 bpm，可评价冠状动脉节段255个，70个冠状动脉节段有105处不同程度的狭窄，95处狭窄程度与金标准SCAG相符，其阳性诊断准确率为90.48%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.853)。B组13例；HR≥91 bpm，可评价冠状动脉节段195个，57个冠状动脉节段有73处不同程度的狭窄，65处狭窄程度与SCAG相符，其阳性诊断准确率为89.04%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.835)。2个心率组间的诊断准确率无明显统计学差异(x~2=0.098，p＞0.05)。30例患者的平均有效辐射剂量为3.67±0.43 mSv结论适应性前瞻性心电门控双源CT冠状动脉成像是一种有效减低辐射剂量的扫描方式，其诊断准确率与金标准SCAG相比得到较高的一致性，且高、低2个心率组间诊断准确率无明显统计学差异。

Mark'.'' to the next so that a new line of characters is visible to the scan head.

标'。''移到下一个，以使扫描头可读取一个新的字符行。

Read'.'' station from one timing mark to the next so that a new line of characters is visible to the scan head.

文件'。''，从一个时标移到下一个，以使扫描头可读取一个新的字符行。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。