查询词典 Ct

The contrast agent having been injected, the abscissa of the time-density curve of the artery and the tissue in the dynamic CT image is the time, and the ordinate is the increased CT value after the injection.

注入对比剂后，动态CT图像中动脉及组织的时间-密度曲线的横坐标为时间，纵坐标为注药后增加的CT值

In 2007, we performed 804 SPET/CT services in many aspects. Integrating CT was used for CT attenuation correction or morphological image fusion.

统计2007年当年共计进行SPET/CT造影804例，主要应用CT在辅助进行衰减校正或病灶定位。

A difference in pattern classification on 3D CT was found between benign and malignant SPN. Conclusion: 3D CT can not only stereoscopically demonstrate the abnormal signs of SPN, but can also provide information concerning the anatomic relationship between SPN and adjacent bronchi, vessels and chest wall. Combined 3D with 2D CT, the diagnosis can be improved.

三维重建技术不仅能三维显示SPN的异常表现，而且能显示结节与支气管、血管和胸壁是的解剖关系及形态学特征。3D CT结合2D CT有助于提高诊断准确性，是鉴别SPN良恶性的有效的影像学检查方法。

A summary of CT signs of 20 cases of carcinoma of pancreas and 4 cases of cancer of Vater amp- ulla,all proved surgically and patho- logically,was presented,The overall CT diagnostic accuracy in this series was 95%.

总结手术、病理证实的20例胰腺癌和4例法特壶腹癌的 CT 表现。本组 CT 总的确诊率为95%。胰癌主要 CT 征象是腺体局部增大及轮廊改变、密度降低、双管征、胰周粘连淋巴结增大脂肪层受侵犯。壶腹癌主要特征是显著的胆道扩张，仅1例有胰头部癌浸润。

Methods:Conventional computed tomography and CTPI were performed in turn within 1~12 hours of symptom onset in 8 patients with acute cerebral ischemi diagnosed by clinic.All patients were counterchecked by regular CT in 3~7 days.Results:In 8 cases,1 cases diagnosed as cerebra linfarction obtained regular CT positive results.

对8例临床诊断急性缺血性脑血管病的患者于发病后1-12h内，先行常规CT平扫后再行CT灌注成像(computed tomography perfusion imaging，CTPI)，全部病例3-7天内复查CT及临床随访。

Results Total 78 cases were received 80 times of radio-frequency ablations through the guidance of CT.Reduced size of the pulmonary neoplasm and reduced chest CT number by 30~37 were founded in most cases(77.4%).

结果78例病人经CT引导行射频消融80例次，绝大多数病灶(77.4%)复查CT均有不同程度缩小或CT值下降30～37，疼痛等症状明显缓解。

We measured the CT value of different quality of the plague in the image of 64-slice CT coronary angiogram.

评估64层螺旋CT对冠状动脉狭窄性病变及支架诊断的准确性，在64层螺旋CT影像上测量不同类型斑块的CT值。

Results: l、The optimal scan parameters for chinese people are flow rate of 3. 0 mL/sec and total injection 125ml. 2、Visibility of coronary arteries and segments: only those proximal and mid segment is image quality sufficient to allow a semiquantitative assessment. 3、Detection of Atherosclerotic Plaque: CT coronary imaging revealed highest sensitivities for the detection of atherosclerotic wall changes the sensitivity of stenoses was 86. 3％. 4、MSCT coronary angiography is easy to prove the entire anatomic structure of coronary and it is an effective technique for evaluating coronary patency. 5、MSCT coronary angiography correctly identified all normal controls and all patients with coronary artery fistula. The anatomic course of the coronary artery fistula was correctly classified. 6、A11 severe lesion could be visualised by

结果：1、不同的扫描技术参数所获得的造影图像质量不同，注射速率3.0ml/s组以及125m1对比剂总量组比较适合国内患者。2、多层螺旋CT冠状动脉造影可显示冠状动脉的主要分支，尤其是冠状动脉的近、中段，显示率在90％以上。3、多层螺旋CT冠状动脉造影对狭窄病变的敏感性为87.3％，能检出冠状动脉造影不易发现的细小斑块，判断狭窄的原因及斑块的特征。4、多层螺旋CT冠状动脉造影可显示搭桥血管的形态、位置及通畅程度，显示桥血管及支架的内腔，安全便捷。5、多层螺旋CT显示冠状动脉畸形准确性高（3/3），多种成像方法可弥补冠状动脉造影显示的不足。6、仿真内窥镜可显示冠状动脉内膜和内腔，显示狭窄斑块的性质。

Methods CT water phantom was scanned using the regular condition of seaning first, then changed one of seaning conditions （ thick slice, exposure capacity, reconstruction of function, kV, FOV and CT- scanner） to scan the water phantom again.

通过固定扫描条件对机器自带水模进行扫描，然后在其它条件不变的情况下，改变其中1个扫描条件（层厚、曝光量、重建函数、仟伏、FOV、机器）再对水模各扫描1次，测量CT图像一定兴趣区的CT值与固定扫描条件的图像相对应ROI的CT值进行比较。

Methods the data on x ray films、ct and mri of the 12 patients with fat embolism syndrome were ananlyzed retrospectively.results the chest x ray films showed diffuse shadow of the pulmones in 3 cases,multiple patchy in 4 cases ,little pleural effusion in 1 case ,the left 4 casses were normal .the chest ct showed patchy ground glass opacity and nodules in 12 cases, pleural effusion in 2 cases.

回顾分析12例脂肪栓塞患者的x片、ct、mri检查资料。结果：肺部x片示3例弥漫密度增高影，4例多发片影，1例少量胸腔积液，4例正常。ct示12例斑片状、磨玻璃、结节影，2例胸腔积液；脑部ct示2例示低密度影，6例正常；mri示8例t2wi均为高信号。

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。