Preservation or loss of extranuclear DNA introduced inherited mechanism of plastid and mitochondrion in angiosperms'pollen.

Application of MR Cholangiopancreatography in the Diagnosis of Extrahepatic Biliary Ducts Obstruction

磁共振胆胰管成像在肝外胆道梗阻疾病中的应用

Methods: MRCP images of 52 patients with extrahepatic biliary obstruction disease were retrospectively reviewed to conclude the lumen morphological abnormalities of benign versus malignant bile duct obstructions, which were confirmed by pathology and clinic observation.

方法对52例经病理或随访证实的肝外胆管梗阻性疾病患者的MRCP资料进行回顾性分析，总结良恶性肝外胆管梗阻的不同MRCP表现。

Advances in studies on the etiology of extrahepatic biliary atresia

婴儿肝外胆道闭锁病毒病因学研究进展

Methods: Liver tissues of 2 cases of extrahepatic biliary atresia and a control case were observed.

方法：对2例肝外胆道闭锁和1例对照的肝组织进行二维病理观察。

Investigation on Differential Diagnosis Between Infantile Hepatitis Syndrome and Extrahepatic Biliary Atresia

婴儿肝炎综合征与肝外胆道闭锁鉴别诊断程序的探讨

A Study of Relationship between Extrahepatic Biliary Atresia and Cytomegalovirus Infection

肝外胆道闭锁与巨细胞病毒感染相关性研究

Purpose: To study appearance of CT scanning of extrahepatic cholestasis biliary cirrhosis ( ECBC) and value of CT in diagnosing ECBC.

目的：探讨肝外梗阻性胆汁性肝硬化的CT诊断价值。

The quantitative differential diagnosis between intrahepatic and extrahepatic cholestasis

肝内胆汁淤滞和肝外梗阻性黄疸的计量鉴别诊断

Diagnostic Value of CT Scanning on Extrahepatic Cholestasis Biliary Cirrhosis

CT扫描对肝外梗阻性胆汁性肝硬化的诊断价值

CT Differential Diagnosis of Extrahepatic Billary Obstruction

CT对肝外胆管梗阻性质的鉴别诊断

Conclusions Bile alkaline phosphatase isoenzyme could be a useful marker in diagnosis of malignant extrahepatic biliary obstruction.

结论胆汁型ALP可作为恶性肝外胆道阻塞的有用诊断指标。

Thus, it is considered that extrahepatic biliary obstruction may induce intestinal bacterial translocation in man.

提示肝外胆道梗阻可导致人体肠道细菌易位。

Value of ultrasound in etiological diagnosis of extrahepatic biliary obstruction

超声对肝外胆管梗阻的病因诊断价值

Results The mean value of this isoenzyme in patients with malignant extrahepatic obstruction was significantly higher than that of patients with benign extrahepatic obstruction, as well as intrahepatic cholestasis and primary liver cancer.

结果恶性肝外胆道阻塞的胆汁型ALP显著高于非恶性肝外胆道阻塞、肝内梗阻性黄疸以及原发性肝癌，正常体检者血清中不存在胆汁型ALP；

Most cases of prehepatic hypertension in children resulted from extrahepatic obstruction of portal or splenic flow with normal function and structure of the liver. The prognosis was good.

结论：小儿肝前型门脉高压症主要是由于门静脉主干或脾静脉梗阻、栓塞而致门静脉压力增高，而肝脏功能、结构均正常，预后好。

Differential Diagnosis of Measuring between Intrahepatic and Extrahepatic Obstruction Jaundice

肝内与肝外重度黄疸的计量鉴别诊断

A New Feature Extracting Algorithm Based Gray Level Co-Occurrence Matrix

一种新的灰度共现矩阵特征提取算法

The Method of Extracting the Liquid Level Value of a Pumping Well from the Echo Signal of Liquid Surface

环抽（一种抽签方法）从抽油井液位回音信号中提取液位值的方法

Robust Estimation and Its Fast Algorithm for Extracting Relative Grey Level Feature of Digital Images

提取数字图像相对灰度特征的Robust估计及其快速算法

To bridge the gap between low-level features and high semantics, extracting high level semantic concept is becoming one of the most challenging research contents in multimedia domain at present.

如何跨越低层特征和高层语义概念间的语义鸿沟，以语义概念来管理、访问视频数据，已成为多媒体领域颇具挑战性的研究课题。