病因

Objective To study a kind of scientific method in the exploration of the risk factors of epidemic diseases.

目的 为人类流行性疾病病因学研究提供一种科学的分析方法。

Objective: To investigate the etiology, diagnosis and treatment of abdominal cocoon.

目的：探讨腹茧症病因诊断和治疗的方法。

Methods:The MSCT datas of 65 mechanical intestinal obstructions confirmed by operation and pathology were collected and reconstructed with multiplanar reconstruction technique,including 43 cases underwent plain scan;the remaining 22 cases underwent plain and contrast-enhanced scan.Results: Contrast to operation and pathology,there were 25 adhesions,24 neoplasms,5 bowel torsions,5 bezoarhs,4 intussusceptions,2 Crohn's diseases in 65 mechanical intestinal obstructions,the diagnostic accuracy of MPR in mechanical intestinal obstruction was 100%,and the accuracy of the pathogeny was 84.6%.

以往在肠梗阻的诊断中应用最多的为腹部X线平片，但因其信息量不足，对大部分病人不能提出肯定诊断，且对梗阻的病因及病变肠管的血供都无法判断。16层螺旋CT在肠梗阻的诊断中具有明显优势，快速、薄层扫描可得到高质量的各向同性后处理重建图像，在显示肠壁、肠腔和周围结构等方面具有较大优势，有利于肠梗阻的梗阻部位及病因、并发症的诊断。

Results Perinatal factor 66 cases,mother milk jaundice 46 cases,germs infection 37 cases,hemolytic disease of the newbron 14 cases,hypercythemia of the newbron 32 cases,hepatitis synd...

结果 围产因素 66例，母乳性黄疸 46例，细菌感染 3 7例，新生儿溶血症 14例，新生儿红细胞增多症 3 2例，肝炎综合症 2例，先天性胆道阻塞 1例；黄疸程度与病因有关，不同病因与治疗所需时间有所不同；除死亡 2例和放弃治疗 6例，其余患儿均痊愈出院。

Results The main causes of SICH in yo ung adults were brain arteriovenous malformations, the ...

结果病因中AVM最常见，其次高血压，部分病因未明。

3D-TOF-MRA appeared to be the best imaging test for the pathogenesis of HFS now. The major causes of HFS might be different neurovascular compressions in the REZ of the seventh cranial nerve, with real compression, entrapping or tight contact.

研究提示，3D-TOF磁共振血管成像为目前面肌痉挛病因诊断的最佳影像检查方法，HFS的主要病因为患侧面神经根部受血管压迫、包绕或与其紧密接触。

Although a coronavirus had been identified as the cause of SARS, certain scientific guidelines laid down in the late 19th century by German microbiologist Robert Koch must be met to establish a pathogen as the cause of a disease.

虽然已鉴定出冠状病毒是 SARS 的病因，但是确定一种病原体作为一种病的病因，必须符合以19世纪末德国微生物学家 Robert Koch 所定的确认科学标准。

Abstract］ Objective To identify the effect of ECG for the etiological diagnosis of heart disease and investigate some differential diagnosis criteria of ECG.Methods ECG findings from 75 cases of excessive volume load of left ventricle were discriminated.QRS amplitude variability was studied from 3 diseases such as mitral and aortic insufficiency and patent ducts arteriosus.

目的 了明确心电图对心脏病病因诊断的作用，探讨ECG的某些鉴别诊断标准方法采用75例左室容量负荷过重病因的心电图鉴别，研究二尖瓣关闭不全、主动脉瓣关闭不全及动脉导管未闭等3 疾病的QRS振幅变化特征。

The causes of acrtic valve diseases in the three groups were analyzed. Results: Rheumatism was the most common reason, accounting for 59.7%(43 cases) of simple aortic stenosis, while bicuspid valves accounted for 23.6%(17 cases). The most common cause for aortic insufficiency was root dilation (38 patients, 43.2%).

结果：风湿性、二叶式主动脉瓣、主动脉根部扩张以及退行性主动脉瓣病变是主要的病因类型，其中单纯主动脉瓣狭窄以风湿性（43例，占59.7%）及二叶瓣17例(23.6%)病因为主，单纯主动脉瓣关闭不全以根部扩张（38例，占43.2%）为主，主动脉瓣狭窄合并关闭不全则以风湿性（70例，占88.5%）为主。

The characteristics and changes of etiology were analyzed. All cases with aortic diseases were divided into single aortic stenosis, single aortic insufficiency, and combined aortic stenosis plus insufficiency group.

分别以主动脉瓣狭窄、主动脉瓣关闭不全、主动脉瓣狭窄合并关闭不全3组分析，具体病因包括风湿性、二叶式主动脉、退行性主动脉瓣、主动脉根部扩张、感染性心内膜炎、少见及未确定等6类病因。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。