钙化血栓

Results 69 aneurysms were detected in 64 patients (five patients have two aneurysms), of which 28 aneurysms lies in ICA, 3 in ACA, 14 in anterior communicating artery, 6 in MCA, 1 in PCA, 11 in post communicating artery and 6 were in vertebral-basilar artery. 3 cases complicated with thromb, 2 with calcification, 15 with parenchymal haematoma, 11 with hematocele in ventricle and 5 with cerebral angio spasm.

结果 发现64例动脉瘤患者共69个颅内动脉瘤（5例患者为2处动脉瘤），其中颈内动脉28例，大脑前动脉3例，前交通动脉14例，大脑中动脉6例，大脑后动脉1例，后交通动脉11例，椎基底动脉6例；并发瘤内血栓3例；钙化2例；伴脑实质血肿15例，脑室积血11例，脑血管痉挛5例。

Curvilinear calcification suggests an aneurysm but is a less specific finding because it can also occur in craniopharyngiomas and sphenoidal masses. The intense enhancement of the residual lumen is relatively specific, but differentiation from other masses may be difficult on CT scans depending on the timing and degree of vascular enhancement. The MR imaging features are usually diagnostic, although they can be very subtle [2]. Significant signal heterogeneity is seen with T1 hyperintense signal due to subacute thrombus or flow related enhancement. Areas of T2 hypointensity can be seen due to intracellular deoxy or methemoglobin, calcification, or flow void.

线样钙化提示动脉瘤，但不是一个非常特异的征像，因为这也可以见于颅咽管瘤和蝶骨肿瘤，管腔样明显强化更特异些，但是在CT上与其他肿瘤鉴别可能是困难的，因为这取决与增强的时间与血管强化的程度，MR的特征性表现是更具有诊断意义的，即使有时候可能表现的非常细微，在T1上可以看到明显的不同信号成分，这是由于亚急性的血栓或流动相关增强效应，T2序列上可以看到低信号区域，这是由于细胞内脱氧或高铁血红蛋白，钙化，或流空效应。

The aortic wall thickness and lumenal diameter had no significant change but obvious stiffness and calcification were found.

术后6个月切取带瓣管道见：带瓣管道无扩张、血栓形成、瓣膜粘连、增厚、狭窄及关闭不全等改变，带瓣管道管壁厚度和管腔大小与术前无明显变化，但管壁明显僵硬，有局限性钙化现象。

The parenchymal hemangiomas consist of honeycombed vascularspaces with stagnant blood flow.This slow flow within the cavernoushemangioma often thromboses,resulting in fibrous organization and calcification.Their feeding artery and draining vein are small,often invisible angiographically.

脑内的海绵状血管瘤由于缺乏明显的供血动脉，病变内血流缓慢，易形成血栓而导致病变的机化和钙化，加之病变与周围脑组织界限明确，除位于脑干的病变外，手术切除相对比较容易，手术后并发症和死亡率较低，预后良好。

Ruptured aneurysms may have high density blood in basal cisterns and sulci adjacent to them, in addition to subarachnoid hemorrhage.

破裂的动脉瘤可能在基底池及邻近脑沟内有高密度出血，未破裂的动脉瘤伴有部分或完全的血栓可以表现为稍高密度影，常常会有环状钙化壁或附壁血栓，增强扫描，伴有部分血栓的动脉瘤最特异的表现是靶征，完全血栓形成的动脉瘤可以有反应性的边缘强化，没有血栓形成的动脉瘤表现为明显均匀性管腔样强化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。