查询词典 common carotid artery

Objective To study the power spectrum density of blood flow ultrasonic Doppler signal using wavelet analysis. Method Doppler signal of blood flow in human common carotid artery was studied with wavelet scalogram analysis, an affine smoothing Wigner Ville transform with a constant "Q" character. Result Wavelet scalogram of blood flow ultrasonic signal had a higher distinguishability than STFT spectrogram in the low frequency portion, but had poorer decussation terms than spectrogram.

对于平稳信号的处理工具仍然是Fourier变换，但是，在实际应用中的绝大多数信号是非平稳的，现在看来处理非平稳信号的主要工具将是小波变换，这主要是因为传统的Fourier变换分析信号时，时间和频率分辨率精度是固定不变的，而利用小波变换分析信号，在信号高频段时间分辨率精度也较高，在信号低频段频率分辨率精度较高，这很符合非平稳信号的特点。

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。

Abstract］ Objective To observe the influence of Rosiglitazone maleate to the intima-media thickness of common carotid artery in type 2 diabetic patients.

摘要］ 目的观察在2型糖尿病（T2DM）的患者中应用马来酸罗格列酮治疗对其颈总动脉内膜中层厚度的影响。

Forty adult female rats were divided randomly into 4 groups:① Pseudo-operation control group: no ovariotomy, no common carotid artery occlusion;② Cerebral ischemia reperfusion group: with CCAO only, no OE;③ Ovariotomized control group: with OE and CCAO, no estradiol;④ Estradiol supplement group: with OE, CCAO and estradiol supplemented (30 d after ovariotomy, estradiol was supplemented every day for 14 d). All the rats were sacrificed after 12h of reperfusion injury, 10% of brain tissue was homogenized and 10% alue was determined by UV spectrophotometer, NO content was detected, and frozen sections and NOSmRNA in-situ hybridization were performed.

取SD大鼠40只随机分为4组：①假手术对照组：不切除卵巢，不夹闭颈总动脉；②脑缺血再灌注组：作局灶性脑缺血再灌注手术，不切除卵巢；③去卵巢对照组：切除卵巢，作局灶性脑缺血再灌注手术，不补充雌激素；④补充雌激素组：切除卵巢，作局灶性脑缺血再灌注手术，补充雌激素（切除双侧卵巢30d开始补充雌激素，连续2周）。

Deligation of the common carotid artery and breathing in low-oxygen gas mixture was applied to prepare HIBD model.

采用结扎右侧颈总动脉并吸入低氧混合气体制备缺氧缺血性脑损伤模型。

Effects of ligaturing bilateral common carotid artery on learning and memory function as well as histomorphology in hippocampus in rats［J］.

双侧颈总动脉结扎对大鼠学习记忆功能和海马组织形态学的影响［J］。

To make the HIE model: Ligate left common carotid artery and then the rats were laid in the room including of 5% O2 and 95% Na.

郑州大学2001级硕士研究生毕业论文nNOS、iNOS在缺氧缺血新生大鼠耳蜗损伤中的作用 1。

Methods The effect of lumbricus on the formation of arterial thrombosis induced by the electrical stimulation in the common carotid artery was observed after the oral administration of0.2,0.4,0.8g/kg of lumbricus to rats for5days.

目的 比较不同工艺地龙的抗动脉血栓作用，确定地龙的免加热提取工艺提供实验依据方法鼠灌胃给3 工艺制备的地龙0.2g、0.4g、0.8g生药/kg，观察对电刺激颈总动脉闭塞性血栓形成时间的影响。

Results Powder,the decocted ex-tracts and the non-heating extracts of lumbricus prolonged the occlusion time of the common carotid artery induced by the electrical stimulation in the dose-dependent way.

结果 地龙磨粉、水煎液和免加热提取物均可剂量依赖性地延长电刺激诱导的颈总动脉堵塞时间，地龙磨粉和水煎液抗动脉血栓作用强度相当，地龙免加热提取物抗动脉血栓作用强于同剂量的地龙磨粉或水煎液。

Methods The effect of lumbricus on the formation of arterial thrombosis induced by the electrical stimulation in the common carotid artery was observed after the oral administration of0.2,0.4,0.8g/kg of lumbricus to rats for5days.

大鼠灌胃给3种工艺制备的地龙0.2g、0.4g、0.8g生药/kg，观察对电刺激颈总动脉闭塞性血栓形成时间的影响。

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％。