查询词典 Ct

As part of my teaching to residents, I tell them that, after 2 weeks of experience in CT scanning, a first-year radiology resident is a better diagnostician than any of the greatest clinicians in the pre-CT era, including Sir William Osler and everyone else; medical imaging is that powerful a tool, and CT has been the modality that has most represented this new diagnostic age.

在向住院医师们授课时，我告诉他们，经过二周的CT扫描经历，第一年的放射医师可以是一个好的诊断者，而此前没有CT的时候的资深临床医生却不及前者，包括William Osler也不例外。

Methods 200 cases (252 knees) of total knee arthroplasty were randomly divided into two groups: Experience group (64 cases): femoral prothesis rotational certification was depended on the palpation of the femoral epicondyle axes combined with Whiteside line in operation. CT scan group (136 cases): femoral prothesis rotational certification was depended on the preoperation CT scan, by which could modulate the lateral rotation angle. The other procedure was same to the standard TKA.

将200例（252膝）TKA患者随机分为两组：①经验组（64例）：TKA术中根据术者触摸外科股骨上髁轴线联合Whiteside线联合确定股骨假体外旋角度；②CT扫描组（136例）：术前CT扫描确定股骨后髁角，术中采用可调外旋定位器复制CT确定的外旋角度，其余TKA手术操作相同。

Results ct examination showed all the 12 cases had most of the cerebroventricular hematocele cleared in 72 hours. nine of them showed basic clearance in 7 days and 2 of them in 10 days. one case indicated fair removal of hematoma in 12 days. all the 12 cases, after 4 weeks' treatment, were evaluated by gos. of them 5 were fine, 3 slightly disabled, 2 severely disabled and 1 dead.

结果 本组12例患者， 72 h头颅ct显示脑室积血大部分清除，7 d头颅ct显示9例基本清除，10 d头颅ct显示2例基本清除，12 d头颅ct显示1例血肿基本清除。12例患者，经治疗4周时，gos评分：优良5例，轻残3例，重残2例，死亡2例。

Results (1) 6 cases of Tuberous Sclerosis. Diffused subependymal nodular calcification lesions were found in all cases on unenhenced CT. 4 patients are 2 pairs of mother/child relationship. Both of the two mothers are found to suffer from renal angiomyolipoma.(2)1 case of neurofibromatosis showed abnormal spinal canal: scoliosis of thoracic and lumbar spine, concave change of vertebral posterior border. Bilateral renal hypogenesis was found in this patient. Diffused hyper-density lesions were found in kidney and fatty accumulation was found in back skin.(3)6 cases of Sturge-Weber syndrome. On unenhenced CT, curving and strip-shaped calcifications were found along the parietal and occipital gyrus.

结果 ①结节性硬化6例，所有病例CT平扫见两侧脑室室管膜下多发小结节状高密度钙化灶，其中4例为两对母子关系，并见两位母亲合并有肾脏错构瘤，；②神经纤维瘤病1例，MRI表现为椎管异常，胸腰段脊柱侧弯，椎体后缘呈明显的切凹改变；伴有双肾发育不良，CT示肾内多个高密度影，背部皮肤多量脂肪堆积，③脑颜面血管瘤综合征6例， CT可见顶枕部沿脑回分布的弯曲的条状高密度钙化，部分延伸致侧脑室内，增强后见病灶内有扭曲的条状和结节状明显强化的血管影；④小脑血管瘤病4例，影像学表现为小脑内大囊、小结节样占位性病变。

After calculating the CT numbers of the different log tomography images,this paper set the CT window width and window level during log testing.

使用计算机断层扫描技术进行原木无损检测，通过对原木树种断层 CT 值的统计，对 CT 设备在检测过程中的窗宽与窗位进行了设定，同时拟合出了木材 CT 值一密度值的线性方程，为原木缺陷的无损检测及木材密度的测定提供一种新方法。

Methods Retrospective analyze the CT signs and pathology of the 16 cases with chronic nasopharyngitis who had underwent CT scanning within recent years in our hospital were analyzed retrospectively.The results were compared with that of disease in pharynx which had the resemble CT signs.

回顾性分析近年来在我院作CT检查的16例慢性鼻咽炎的CT表现，所有病例均经病理证实，并与同期影像表现相似的鼻咽部疾病进行比较分析。

Objective To discuss arteriovenous malformation imaging display of CT,MRI,CTA,MRA,DSA and its pathology.Methods To collection arteriovenous malformation45cases and confirmed by CT,MRI,CTA,MRA,DSA and pathology after surgical operation.Results In the CT,imaging display mass,honeycomb,nodosity,strip,patch and blotch forms.

目的 探讨脑内动静脉畸形CT、MRI、CTA、MRA、DSA等影像学诊断及其与病理学表现的相关性方法本文收集颅内动静脉畸形54例，其中脑动静脉畸形45例，脑膜动静脉畸形1例，硬脑膜动静脉畸形1例，硬脑膜动静脉瘘7例，并经过CT、MRI、CTA、MRA、DSA及手术明确诊断。

Change in bone:destruction of bone could be found in 6 CT cases and osteosclerosis in 15 CT cases and osteoporosis in 4 CT cases,change in bone couid be found in 12 MRI cases⑥gas in bone could be found in 5 cases which could be observed by CT.

髋关节骨质改变：CT显示单纯性骨质破坏6例，骨质硬化为15例，骨质疏松5例。MRI显示骨质改变为12例。

Results It was found that the dense artery sign of MCA existed in the first CT scanning. The dense artery sign of MCA was like a"stick"or"punctiform", and its CT value was over 60 Hu.

对26例一侧大脑中动脉梗死患者的CT 资料进行回顾性分析，所有病例均做了发病早期（1～6h）CT扫描及发病后24h小时CT扫描，均经临床诊断。

Results It was found that the dense artery sign of MCA existed in the first CT scanning. The dense artery sign of MCA was like a"stick"or"punctiform", and its CT value was over 60 Hu. In the second CT scanning (24 hours after the first scan), a big area of low density in the region supplied by MCA was shown.

结果 26例患者发病早期（1～6h）的CT 检查均见一侧大脑中动脉致密动脉征，呈"条状"或"点状"，CT值大于60Hu；发病后24h复查，该侧大脑中动脉血供区均呈大片状低密度影。

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。