查询词典 Ct

Evaluation of IEM103 in rabbit animal model.The evaluation was based on the control-challenge study (IEM101 as control). Rabbits were laparotomized, injecteded 10〓 cfu directly into proximal small bowel, and 28 days later, challenged with 0.25--2ug CT and 10〓-10〓 cfu 4 wild toxic strains with different biotypes and serotypes. Experimental group developed antitoxic and significant vibriocidal immune responses to vaccination, and could protect no less than 2ug CT and 10〓-10〓 cfu all wild strains challenge.

IEM103的免疫原性评价：经兔肠段结扎免疫〓cfu IEM103，7天后在外周血中可检测到外周淋巴细胞分泌性抗CT IgG，血清中可检测到抗CT抗体、杀弧菌抗体，P／N均≥2，且可持续至28天。28天后用0.25-2ug CT毒素，四种毒株滨-43，吴江-2，395，1119〓cfu菌量攻毒，实验组可保护至少2ug CT攻毒，而对照组可保护1ug以下CT攻毒，两组均可保护〓cfu四种毒株攻毒（以肠积液量≥1.0ml／cm为不保护判断标准）。

Methods A retrospective analysis was performed for images of CT,MRI and DSA of 12 patients with intracranial venous angiomas.In all cases,7 cases male,5 cases female,age ranged from 8 years old to 72 years old.All patients underwent the examinations of CT,MRI and/or DSA.Results All 12 patients had single lesion.In these cases,there were 6 cases （50%） located in cerebella,6 cases （50%） located in cerebra including 3 cases （25%） in lobus frontalis and 3 cases （25%） in lobus parietalis.Most patients had slight clinical symptoms and were detected the lesions accidentally when they were examined for other diseases.Compared the imaging features of CT,MRI and DSA,conventional CT scan was negative,but there were characteristic images which was "dendritic" sign in contrast-enhanced CT and MRI,and typical findings of "caput medusae"sign in venous phase of DSA.

结果 颅内静脉血管瘤均为单发；6例（50%）位於幕下小脑实质内，6例（50%）位於幕上额叶（3例25%）、顶叶（3例25%）脑实质内；患者临床症状轻微，多为合并其他病变检查时偶然发现；CT、MRI及DSA的影像比较，CT平扫为阴性，CT增强扫描与MRI平扫呈特征性表现，即树枝征，DSA静脉期可见典型表现蛇头征。

Results The PET/CT imaging was performed for 62 patients including 7 cases with central bronchial carcinoma, and 55 cases with peripheral lung cancer. 59 cases with confirmed diagnosis, the diagnostic accuracy rate was 95.16%. Some abnormal enrichment can be seen by 18F-FDG PET/CT. The largest SUV is 1.0～22.3. Radioactivity intussuscept can be seen by 11C-MET and PET-CT, and SUV is 0.5～4.9. Vessel bunch is available by CT enhancement scan that can clear the borderline of lession. Sublobe,spicule sign,depressed pleura,and bronchia obstruction can be seen by HRCT.

结果 62例肺癌患者中，中央型肺癌7例，周围型肺癌55例，明确诊断59例，诊断率95.16%。18F-FDG PET/CT检查见病灶有不同程度放射性异常浓聚，最大SUV1.0～22.3； 11C-MET PET/CT检查的病灶均见不同程度放射性摄取，SUV0.5～4.9；CT增强扫描病灶边界清晰，明显强化，可见血管"集束征"， HRCT检查见病灶有分叶、毛刺征、胸膜凹陷征及支气管阻断。

Clinical pulmonary ventilation function test, Pulmo CT measurement of vital capacity, and spiral CT scan under the control of spirometer were performed in 40 patients and 20 health adults in order to assess the accuracy of spirometrically controlled CT and to analyze CT quantitative data in correspondence with clinical pulmonary ventilation function.

为检测呼吸门控的准确性、了解定量的CT资料与肺通气功能的相关性，对患者组40例和对照组20例行临床肺通气功能检查、Pulmo CT肺活量检测和呼吸门控下螺旋CT扫描。

Objective:To discuss CT findings and evaluate diagnostic value of the elderly patients with pulmonary tuberculosis.Methods:CT findings in 56 cases of the elderly patients with pulmonary tuberculosis confirmed by surgery, pathology, endoscopy,tubercle bacillus culture were retrospectively analyzed. All cases were scanned by CT and enhanced study was done,the location of lesions slice thickness:2mm.

目的：探讨老年肺结核的CT表现并评估CT的诊断价值方法：回顾性分析经手术病理、纤支镜、痰菌培养所证实的56例老年肺结核的CT表现，常规CT平扫和增强扫描，病灶部位2mm薄层扫描。

The section thickness was 5mm,the best section was selected before injection of nonionic contrast material, hen nonionic contrast material l.5m1/kg were injected via the antecubital vein in the rate of 2ml/sec, two serial scannings were obtained began at 6s and 2mm, for the first series the scanning internal was 3 seconds, for the second series, the scanning internal was 7 seconds.3 Methods of studying figureThe CT numbers of lesion on plain CT and on contrasted CT at serial phases were recorded, on which the time-intensity was produced.

计算出不同时相时的CT增强值，绘出动态增强曲线。在不知道病变病理结果的情况下，由三位有经验的医师在不知道病理结果的情况下记录上述病例的动态增强模式及其动态变化。 4。增强峰值与肺血供来源和血管密度的关系的评价其中32例准备手术的SPN，术前行CT同层动态增强扫描后测量增强后第一次循环肺动脉期与主动脉期CT值。然后分别与平扫时CT值比较；术后对瘤体CT测量兴趣区取材并行HE染色，随机取5次，在放大40倍的显微镜下观察5mm范围内直径0.02～0.1mm和＞0.1mm的微血管数目，5次的平均值颀士学泣衫艾中文赂要即为兴趣区对应的血管数目，井将其与瘤体增强峰值作相关性分析。

Results The resection rate for low and undifferentiated adenocarcinoma and mucinous carcinoma on gastroscopic biopsy was low (64.1%), and the rate for diffuse infiltrative gastric carcinoma (6.7%) was significantly lower than that of mass tumor type (66.7%) and ulcerative type (61.8%). The total accuracy rate of CT staging was 91.21%. Sensitivity rate of CT diagnosis of perigastric invasion and/ or metastasis was 72.22%. For lymph node staging the accuracy rate of CT was 74.2%, sensitivity rate was 74.1% and specificity rate was 74.3%. CT diagnosis of lymph node groups was blur.

结果 胃镜活检低分化腺癌和黏液腺癌手术切除率(64.1%)较低，弥漫浸润型胃癌的切除率(6.7%)明显低于肿块型(66.7%)和溃疡型(61.8%)；CT分期总准确率为91.21%，CT诊断对胃周脏器受侵和转移的敏感性为72.22%，CT对淋巴结分期的准确率为74.2%，敏感性为74.1%，特异性为74.3%，CT诊断对淋巴结分组比较模糊。

objective according to 14 cases of patients with post-traumatic bronchial rupture of the ct and x-ray findings.analysis of its causes,trauma type,and ct,x-ray value and the advantages and disadvantages.methods 14 cases of bronchial rupture in patients with clinical data,x-ray,ct-chip analysis and summing up.results traumatic bronchial rupture study the performance of the main image①bronchial cut-off levy;②atelectasis and pulmonary fall levy③pleural effusion,pneumatosis;④mediastinum,subcutaneous emphysema;⑤many thoracic fractures;⑥traumatic wet lung,and so on.conclusion for traumatic bronchial rupture combined with x-ray and ct examination can be clearly diagnosed early.

目的 根据14例患者外伤后支气管断裂的ct和x线表现，分析其起因、外伤类型和ct、x线应用价值及优劣势。方法对14例支气管断裂患者的临床资料、x线平片、ct片进行分析、总结。结果外伤性支气管断裂的主要影像学表现①支气管截断征；②肺不张与肺坠落征；③胸腔积液、积气；④纵隔、皮下气肿；⑤胸廓多发骨折；⑥合并创伤性湿肺等。结论对于外伤性支气管断裂结合x线摄片和ct检查是可以早期明确诊断的。

Advancement of CT machine: Since CT machine has been applied, with unceasing development of computer technique, detector technique, X-ray technique and new micro-electron and micro-technique have been used, thereby performance of computerized X-ray tomography machine has been improved greatly, it is era-changing identification of computerized X-ray tomography scan from bed plane scan to spiral scan.

CT机的进展：CT机器自问世以来，随着计算机技术，探测器技术，X线技术的不断发展以及新的微电子和显微技术不断的应用于CT机，从而提高了CT机的性能，标志着CT扫描从层面扫描到螺旋扫描的换代。2）图象后处理技术：螺旋CT的出现及计算机软件的开发，利用导航技术做出具有3D仿真内窥镜的图象，既，这种新的影像学方法，引起了广泛的关注。

In this paper, the development of CT imaging, CT clinical progress of two major aspects of the past 10 years, further elaborated the medical CT imaging technology development: CT is the emergence of traditional X-ray photography and computer technology combined with the results of imaging Technical people with a new epoch-making stage.

本文从CT成像技术的发展，CT临床应用的进展两个大的方面进一步阐述了近十年来医学影像CT技术的发展现状：CT 的出现是传统X线摄影和计算机技术结合的结果，将影像检查技术带人一个新的划时代的阶段。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。