查询词典 Ct

Results 20 cases of CT examination had made proper diagnoses,the CT imaging finding about the most of peripheral cholangiocarcinoma included:There was the atactic low density tumour in liver,its borderline was unclear,enhanced scan appearances were irregular peripheral enhancement,centripetal enhancement,and delaying enhancement;There was concretion and dilatation of bile buct in or around the focus;The local envelope of liver was lacunose and the local liver was atrophied,There was abroad putrescence and liquescence in the focus.

结果 20例CT做出了正确的诊断，大部分周围型胆管细胞癌的CT表现为肝内不规则低密度肿块边界欠清，增强扫描表现病灶边缘呈不规则环状强化，有向心性强化的趋势，出现延迟强化；病灶内或周围可见结石，病灶内及周围肝内胆管扩张；局部肝包膜回缩、肝叶萎缩，病灶内大片坏死、液化。

Objective :To assess the overall value of lobulation sign and deep lobulation sign in the differential diagnosis of peripheral lung cancer and pulmonary tuberculoma in CT images.Methods : Firstly , articles about CT differential diagnosis between pulmonary tuberculoma and peripheral lung cancer were selected ,which were published in the period(from January 1990 to December 2008),and useful data were extracted.Then Meta-analysis was done using Meta-disc software,and SDOR value calculated.

方法搜集1990年1月至2008年12月国内外公然发表的关于四周型肺癌与肺结核球CT鉴别诊断的文献，对文献进行筛选，应用Meta-disc软件对符合条件的原始研究进行质量评估、异质性检验，计算阳性似然比、阴性似然比和诊断比值比，最后汇总敏感性和特异性，绘制SROC曲线并计算曲线下面积来综合评价分叶征及深分叶征在CT检查中对于四周型肺癌与结核球鉴别诊断的价值，进行敏感性和特异性分析。

Abstract］ objective to study the knowledge of the imaging manifestation of x-ray and ct in peripheral small lung cancer.methods to collect twenty cases with no symptom in early time diagnosed by clinic and to retrospectively analyze their imaging features.results x-ray appeared patch,small node.ct appeared patch,small node,light lobulation,peripheral vessel convergence,pleural indentation sign.most of the diameter was 1.5 to 2 cm,with no mediastinum and pulmonary hilar lymph nodes diversion.furthermore the clinical symptom was not obviously.conclusion to be familiar and handling the sign mentioned above is the key to boost the diagnosis of small peripheral lung cancer.

目的 探讨周围型小肺癌的x线、ct影像学表现。方法收集临床和病理证实的早期无症状肺癌20例，对其影像学进行回顾分析。结果本组早期肺癌x线为斑片状、小结节状。ct表现为斑片状、小结节状、轻度分叶状肿块，小毛刺、血管集束征、胸膜凹陷征，大多直径在1.5～2 cm。无纵隔淋巴及肺门转移，且临床症状不明显。结论熟悉并掌握上述征象是提高小肺癌早期诊断率的关键。

Results One case with infantile onset had macrocephaly. The CT scan and MRI showedprominent low-density white matter throughout the cerebral hemispheres. MRI showed prominent also increased T2 signal in the periventricular whitematter. Another patient had an onset at school-age. The CT scan demonstrated brain atrophy. Histological examination on brain biopsy revealed diffuse demyelination and fibrous gliosis.

结果1例婴儿期起病者头颅大，CT扫描示前额明显的广泛性脑白质密度减低特征，MRI示脑室旁白质T2高信号；另1例学龄期起病，CT扫描显示脑萎缩，脑活检光镜下发现脱髓鞘和胶质细胞增生，电镜下观察到大量Rosenthal纤维及不规则的颗粒状沉积物。

Tment and prognosis.conclusion the spiral ct scanning is preferred method in early diagnsis of traumatic cerebellar hemorrhage.dynamic ct of head and prognosis is the important criterion in judging injury degree of cerebellum in the clincal medical jurisprudence.

认为螺旋ct扫描是早期确诊外伤性小脑出血的首选方法，动态观察头颅ct与预后是临床法医学鉴定小脑损伤严重程度的重要指征。

Methods: The double-phase 16-slice spiral CT enhanced scanning was conducted in 58 cases of the cardia cancer, then multiple plane reconstruction was done on the CT images, and the cross-sectional images and the MPR images for the infiltration depth and invasion extent of the tumors and the situation of metabasis of lymph-gland surrounding it were observed.

对58例贲门癌患者行术前双期增强16层螺旋CT扫描，再将CT图像进行多平面重建（MPR，依横断面图像和MPR图像观察肿瘤浸润深度、外浸范围、周围淋巴结转移情况，与手术中情况及术

It is probable like a secondary TB. According to the videos, it is unlike miliary tuberculosis. If have CT, please send the CT on the internet.

从胸片看很像个继发性肺结核，粟粒性肺结核要慎重，影像不太像，最好有个CT，不妨把CT片发来看看。

The helical CT scanning is able to show the CT features of chronic nasopharyngitis and mnay cases are able to final diagnosis with CT. But biopsy and observation is necessary because its difficult differentiation from early nasopharyngeal carcinoma.

CT扫描能显示慢性鼻咽炎的影像学特征，多数病例可作出明确诊断，但与早期鼻咽癌鉴别诊断困难，活检及动态观察是必要的。

The dissertation mainly studied the key techniques which are the mathematics modeling of cone-beam CT simulation system, and the parallel rapid simulation of the projection imaging with STL phantom models. Then a cone-beam CT simulation system platform was developed, which provided the projection simulation for compounding phantoms, non-point X-ray source and multiple X-ray spectrums.

本文重点研究了锥束CT仿真系统的数学建模、STL样本模型投影成像的并行快速仿真等关键技术，开发构建了一个支持混合样本、非点光源与多光谱投影仿真的锥束CT仿真系统平台。

Objective: To study the value of CT perfusion combined with CT angiography in diagnosis of cervical vertigo.

目的：探讨脑CT灌注成像联合CT血管造影成像对颈性眩晕病因的诊断价值。

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。