查询词典 scan head

A radiologist should read a CAT head scan within 45 minutes of the patient's arrival.

放射学家应在病人抵达45分钟内对其进行头部造影扫描。

This head CT scan demonstrates a mass with irregular margins in the region of the sella. Such a mass may impinge upon the optic chiasm, just like a pituitary adenoma.

头颅CT显示颅咽管瘤，在蝶鞍可见边缘不规则的大肿块，象垂体腺瘤一样压迫视交叉。

Conventional MR imaging and DWI was used to scan 107 patients with nasopharyngeal non cornification anaplastic carcinoma for first time on a GE 1.5T EXCITE III scanner using head-neck coil.

采用GE 1.5T EXCITE III超导型磁共振成像仪、头颈联合线圈，连续对107例鼻咽癌初诊患者、55例健康志愿者行MRI常规扫描和DWI成像扫描。

Material and Methods:From March,2008 to January,2009,250 patients(146 Males and 104 Females,ranged from 18 to 82 years old,mean age was 48 years old) enrolled in the First Affiliated Hospital of Kunming Medical College were performed dual energy scan(Group A,200 patients) and Neuro-DSA scan(Group B,50 patients) using DSCT.The patients were randomly divided into Group A and Group B.Regarding to the justification of scan protocol,100 patients in Group A were selected as sub-group to explore the scan protocol.The image quality Was analyzed both in four categories(4.0/60、4.5/60、4.0/70、4.5/70) of flow rate and total amount of contrast-enhanced material and in three categories(100—150HU、150—200HU、200-250HU) of CT value of left common carotid artery.The comparison of two scan approach was based on image quality,radiation does, postprocessing methods,time of scanning and subtraction and data storage amount.To validate the diagnostic capability of DE-CTA virtual unenhanced images,100 patients in Group A were undergoing head scan both in routine non-contrast program and DE-CTA virtual unenhanced program.Mean CT values,signal-to-noise ratio,image quality,sensitivity of lesion identification,and radiation does were applied to comparison.According to diagnostic results of dual energy of cerebral arterial angiography,62 patients out of 200 patients in Group A were confirmed with cerebral vessel lesions,the results were complied with DSA findings(the time between the two methods were within 1 week).

材料与方法收集2008年3月到2009年1月间在昆明医学院第一附属医院行DSCT CTA检查者250例(男性146例，女性104例，年龄范围18-82岁，平均48岁)，随机分为A、B两组，A组200例行双能量头颅CTA扫描；B组50例行Neuro-DSA扫描。A组前100例按对比剂不同流率和总量分为4组(4.0/60、4.5/60、4.0/70、4.5/70)对图像质量比较；按触发时左颈总动脉内平均CT位分3组(100—150HU、150—200HU、200-250HU)，比较图像质量的差异；对A、B两组血管图像质量、辐射剂量、后处理的方法、扫描和后处理时间及数据的容量进行比较分析；A组中前100例行常规与DE-CTA虚拟平扫的平均CT值、信号噪声比、图像质量、病灶显示情况、辐射剂量的比较分析；A组中行DSA检查62例(两种方法间隔时间均1周内)，比较两种检查方法诊断结果是否符合，并对其中24例动脉瘤行动脉瘤部位、数目、形态、瘤颈显示程度、瘤颈大小及瘤体长径和短径的比较研究。

Aluminum foil in polychromatic overprinter photoelectricity scanner tracking color standard position correction and manipulation of order: first switched on automatically overprinter the total power switch device, open the channel computer power supply and track scan power, photoelectricity scanning head alignment reflector and adjust the distance from far and wide, so that the reflector to be rendered on the minimum light point, at which point the detection distance of about equal to the focal length of the photoelectricity scanning head.

铝箔众色套印洋差平电扫描器跟踪色不本场所订侧和操纵挨次为：不后不切断被迫套印安装的总电源开关，开放各通道计算机的把持电源和跟踪扫描电源，不兵平电扫描脚差准不直射不活，调度远近间隔，使不直射不活上表现的平不面最小，此时的检测间隔约即是平电扫描脚的焦距。

Internal cylindrical drum machanistic imagesetter scan records section of the main characteristics is that sencitivity is adsorbed on drums of intine, phototypesetting, drum does not rotate, but by scanning head side to side movement in turnused mediumso imaging, usually on the exposure from drum 360 degree of 270 degrees as a scan of the film to prevent blurry due to reflection.

边方滚筒扫描式激平照排机的扫描纪录局部的次要特不面是，感平质料被吸附在滚筒的边壁上，照排时，滚筒并不不停不静，而是靠扫描脚一背回旋扭不停，一背移不静在感平质料上曝平不败像，凡是只诳骗滚筒360量洋的270量息为感平胶片的扫描区，以避免不屈射引起的暧昧不隐象。

We use quasi-Newton method for a high-speed coarse scan over a large area of the head, and Levenberg-Marquardt method for a fine scan near the source area.

首先从数学物理中关于不定问题的定义来解释脑磁逆问题的不适定性，脑磁文献中没有这方面的详细讨论。

Objective To study Application of Brain CT Perfusion and scan from head side to foot side in multislice CT angiography in the head and neck.

目的 探讨脑CT灌注及头侧向足侧扫描在头颈部CTA中的应用。

Head MRI or head CT scan may be abnormal, especially in a region of the brain called the basal ganglia, but nonspecific.

头部或头部磁共振扫描可能正常，尤其是在一个地区称为脑基底节，但非特异性。

A numerical human head model based on CT scan image of alive head of a Chinese has been developed using finite element method and computer-aided-engineering techniques.

该项目从计算生物力学着手，以有限元法和计算机辅助工程技术为手段，建立中国人的头部损伤生物力学的数字化头颅。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。