查询词典 sphenoidal

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 middle nasal concha, nasal septum, optic nerve, internal carotid artery, sphenoidal sinus, dorsum sellae, hypophysis and vomer were semiautomatically segmented with software such as Photoshop, 3D-Doctor and were volume rendering and surface rendering by reconstruction on computer.

重建结构可多结构、多色彩模式显示，在三维空间绕任意轴旋转，也可对三维结构进行透明显示、任意缩放，对有关径线进行方便的测量。

Results: The lesion located in the left choana region and left sphenoidal sinus of this case involved the left pharyngeal mucous space, left infratemporal fossa and its adjacent bone structure. CT showed that the rhinoscleroma in granulomatous stage was a soft mass which was irregular in shape, with a well-defined margin, inhomogeneous density and bone destruction. MRI showed heterogeneous hyperintensity on T1WI and isointensity on T2WI with an intermediate heterogeneous enhancement.

结果：病变起源于左侧后鼻孔及左侧蝶窦区，累及左侧咽粘膜间隙、左侧颞下窝及邻近骨质；结合本病例及文献复习，肉芽肿期鼻硬结病CT表现为不规则软组织肿块，轮廓清楚，密度不均匀，可见骨质破坏，残存骨质呈硬化改变；MRI表现为T1WI高信号T2WI等信号影，信号不均匀，增强后中度不均匀强化。

Based the above research, we chosen 48 cephalometric radiographs of skeletal classⅢocclusion (18-39 years old, ANB4°) and measured with computer assistant Delaire cephalometric analysis. The data were deal with ANOVA analysis through SAS9.0 statistical software. The research divided the cranio-maxillo-facial hard tissue structure feature of skeletal classⅢinto four classifications through Delaire cephalometric analysis including hypo-divergent, hyper-divergent, maxilla normal and glenoid fossa retrocession, nine parameters of four groups have significantly variability through ANOVA analysis(P.05),for example, anterior cranial base angle, sphenoidal angle, percentage of craniospinal area to cranial depth ,percentage of craniofacial area to cranial depth and so on.

在上述研究的基础上，首先选取48例骨性Ⅲ类错牙合畸形患者(18-39岁，ANB角4°)应用Delaire头影测量分析法进行测量，经SAS9.0行ANOVA分析，将骨性Ⅲ类错牙合畸形区分为低角型、高角型、上颌正常型和关节窝后移型四组，四组均数ANOVA分析发现九项分析指标的均数差异均有统计学意义(P.05)，如蝶鞍角、前颅基底角、颅面区比和颅颈区比。

No light perception, disturbance of consciousness and presence of blood within the sphenoidal or ethmoidal sinus are the risk factors to the visual prognosis of traumatic optic neuropathy.

伤后无光感、意识障碍和蝶、筛窦积血是影响外伤性视神经病变视力预后的危险因素。

Accessory nasal cavities with ACC always involved ethmoidal and sphenoidal sinus.

副鼻窦ACC易累及筛窦和上颌窦。

METHODS:Forty cases of traumatic optic neuropathy were analyzed retrospectively. Univariate analysis (Chi-square test) and logistic regression were performed to filter the risk factors to the visual prognosis of traumatic optic neuropathy. Eight variables were tested, including corticosteriod treatment in 2 days after trauma,no light perception,frontal or temple trauma,orbital hemorrhage and/or fracture,disturbance of consciousness,age ,other ocular trauma and presence of blood within the sphenoidal or ethmoidal sinus.

回顾分析40例外伤性视神经病变患者的临床资料，将伤后2d内是否接受激素治疗，伤后有无光感，有无意识障碍，是否有额颞部受伤，有无眶内积血和或眼眶骨折，患者年龄，是否合并其它眼外伤及是否有蝶、筛窦积血等8个变量纳入研究，通过单因素分析（χ 2检验）和多因素分析（Logistic回归分析），筛选出影响外伤性视神经病变视力预后的危险因素。

The unit of radioreaction in ethmoidal sinus was ethmoidal cell. Several ethmoidal sinus cells were fused to patch in severe cases. The radioreactions in ethmoidal sinus, maxillary sinus and sphenoidal sinus were seen within three months, after three months and after one year respectively. And nasal sinus radioreactions of most cases were not absorbed spontaneously after one year. When the two kinds of radiotherapies were equal in dosing level, there was no obvious difference between them in respect to the radioreaction of accessory sinus, but when the dosing level was above 3182GBq, the radioreaction of accessory sinus was remarkably increased, compared with those caused by lower-dose radiotherapies.

筛窦放射反应以筛窦小房为单位，重者也可以多个小房融合成片状；筛窦的放射反应在放疗后3个月内即可出现，上颌窦常在3个月以后出现放射反应，而蝶窦一般在放疗后1年以后才出现；大多数病例副鼻窦放射反应在1年以后难以自动吸收、消退；两种方法放疗剂量相同时所致副鼻窦放射反应无明显差别，但放疗剂量在3182 GBq以上时所致副鼻窦放射反应较其它放疗剂量时明显增高。

Methods: The nose, nasal septum, sphenopalatine artery, anterior region of the aperture of sphenoidal sinus, sphenopalatine artery and adjacent structures of hypophysial fossa were dissected, observed, measured and photographed in different operational angle under the operation microscope by use 15 adult cadaveric heads and 20 adult cranial bones.

用15例(30侧)成人头颅标本及20侧(40侧)成人骨性标本，模拟手术角度，在手术显微镜下对鼻、鼻中隔、蝶窦开口前区、蝶腭动脉及垂体窝周围的结构等进行直接解剖、观察和测量，同时行显微摄像。

The patient with sphenoidal meningocele complicated by cerebrospinal fluid leakage, visual decrease and endocrine disorder can be treated by surge

对合并脑脊液鼻漏及明显视力下降、内分泌障碍的蝶窦脑膜脑膨出病人，可考虑手术治疗；内镜经鼻手术是首选外科治疗方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐