畸形学的

So it is necessary to induce the NTDs model and to study the etiology and mechanism by the point of view of the embryogenesis and biotomy.

因此建立神经管缺陷的动物模型，从胚胎发育学和生物解剖学角度研究畸形的病因和发生机制是有必要的。

The CT and MRI manifestations of pachygyria and agyria are presented with a review of the pathological features of the disorders and an evaluation of the diagnostic value of both imaging modalities.

结合巨脑回和无脑回畸形的病理特点，研究两种病变的 CT、MRI表现特征，以评价两种影像学检查方法该病变的诊断价值。

Objective: To study the clinical and imaging feature of cerebral arteriovenous malformations.

目的：研究脑动静脉畸形的临床特点和影像学特徵。

Objective To evaluate the image manifestations of intracranial aneurysm and arteriovenous of posterior circulation.

目的研究颅内后循环动脉瘤和动静脉畸形的影像学表现。

Spiral CT reconstruction can provide the most accurate and integrity imaging information and is very useful in the diagnosis of atlantoaxial injuries and deformity.

螺旋CT重建技术能够提供准确、完整的影像学信息，在寰枢椎损伤与畸形的诊断中具有重要应用价值。

Purpose: To discuss the forming mechanism d overlapping teratism in renal pelvis and ureter and the best method of examination.

文章摘要：目的：探讨肾盂、输尿管重复畸形的形成机制及其影像学检查方法。

The objective of the study is to clarify the effect of MTHFR thermolabile polymorphism on genetic susceptibility of NTD in Chinese population.

目的：应用分子生物学方法进行遗传流行病学研究，探讨MTHFR基因多态性在神经管畸形的遗传易感性中的作用。

CTU and 3D reconstruction were an important technique for diagnosis of duplex kidney and double ureters, as well as a guidance for the selection of operative modality.

CTU检查及三维重建是重肾和双输尿管畸形一种重要的影像学诊断方法，能够准确作出诊断，并可指导术式选择。

MATERIAL AND METHODS: Thirty 30 healthy Sprague- Dawley adult male rats were randomly divided into 3 groups: control, alcohol 7.5 g/kg and alcohol 7.5 g/kg ＋ vitamin A 50 μ g/kg. Alcohol and vitamin A were administrated to the rats for 13 weeks by a gastric tube. The sperm counting ,motility and the percentage of abnormal sperm were observed. Serum testosterone was determined. The patholgical changes of testicle tissue of rats were observed by light and electron microscopy.

材料与方法： 30只健康雄性成年 SD 大鼠随机分为对照组、酒精组、酒精＋ VA 组，各组每日分别灌胃给予酒精0、7.5 g/kg 、酒精7.5 g/kg ＋ VA 50 μ g/kg ，连续13周后对各组大鼠的精子计数、精子活动率、精子畸形率、血清睾酮(Serum testosterone，T )进行检测，光、电镜观察睾丸生精上皮的组织学改变。

Purpose: To study the correlation between clinical features and imaging classification of spinal vascular malformations .

目的：分析研究脊髓血管畸形的l临床特征与影像学分类的相关关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。