超急性的

Objective:To research expression and function of c-myc gene in hyperacute r ejection of xenotransplantation.

目的：研究c-myc基因在异种移植超急性排斥反应时的表达及功能。

Acute myocardial infarction is a common cause for sudden and unexpected death. However, it is difficult to detect the myocardial changes in medico-legal practice with traditional macroscopic examination or routine histological stains when the sudden death occurs in the hyper-acute phase of infarction (＜3h).

急性心肌梗死是引起猝死的常见原因，然而，在法医实践中，对于心肌梗死的超急性期（＜3小时）发生死亡的心脏用传统的肉眼观察或常规组织学检查的方法很难发现心肌的形态学改变从而提供客观的诊断依据。

Objective to explore the way of identify the size and evolving process of reversible damaged region and irreversible damaged region.

目的：对急性脑梗塞可逆性损伤区和不可逆性损伤区进行界定并观察其演变规律，为超急性期溶栓治疗的必要性及时间窗等问题提供影像学依据。

CTPI can evaluate the brain homodynamic of cerebral ischemia-reperfusion animal model in living state as a rapid, accurate, non-invasive method, show the cerebral infarction ischemic region's site, size, extent, and has important clinical value for the ultra-acute cerebral infarction to treatment and review.

第二部分CT灌注成像在超急性脑梗死实验中的诊断价值目的：应用CT灌注成像(CT perfusion imaging ，CTPI)技术，观察大鼠超急性脑梗死不同时间点脑血流动力学变化及半暗带(Ischemic penumbra ，IP)的演变，为临床早期诊断治疗提供依据和指导。

Objective To explore the diagnostic value of hyperacute intracerebral hemorrhage with ultra-low field MRI.

目的 探讨老年人超急性期脑出血的超低场MRI表现特点。

Objective To determine the feasibility of superparamagnetic iron oxide perfusion T2WI for detecting hyperacute cerebral ischemia.

目的 观察国产超顺磁性氧化铁灌注T2WI诊断超急性期脑缺血的可行性。

Methods: a comprehensive analysis of 20 cases with acute left ventricular failure as the first manifestations of acute subendocardial myocardial infarction patients with a history of 20 cases and clinical characteristics, according to ECG, dynamic changes of enzymes, Killip classification of cardiac function and cardiac color report indicators of cardiac function, acute acute subendocardial myocardial infarction with acute left heart failure occurred in the characteristics and causes.

综合分析20例以急性左心衰竭为首发表现的急性心内膜下心肌梗死20例病人的病史和临床特点，根据心电图、心肌酶的动态变化、 Killip 心功能分级和心脏彩超报告的心功能指标，探讨急性急性心内膜下心肌梗死发生急性左心衰竭的特征和原因。

Methods Both conventional MRI and DWI were performed in 27 patients with superacute cerebral infarction. The MRI observations were carried out consecutively at acute (6-72 h), subacute (3-14 d) and chronic (15-30 d) stages to investigate the dynamic changes of the infarction. The change in signal intensity of the infarct lesions on DWI was observed.

对27例临床确诊的超急性期脑梗死患者行常规磁共振和弥散加权成像扫描，并分别于脑梗死的急性期(6~72h)、亚急性期（4~14天）和慢性期（15~30天）进行3次磁共振随访，观察脑梗死后不同时间DWI信号强度的变化。

In infarction patients group,DTI can early detect some small infarction lesions in white matter. With the pathophysiological evolution of the disease, FA and ADCAV changes regularly. In hyper-acute stroke, FA of lesions have no consistent change, appreciably elevated or decreased. In acute, sub-acute and chronic stages of cerebral infarction, FA of lesions unrecovered declined.

在脑梗死患组DTI能早期发现较小的白质内梗死灶，脑梗死后脑组织FA值、ADCAV值随病理生理演变呈一定规律性变化，病侧FA值在超急性期较对侧无一致性变化，可轻度升高或者轻度降低，随后(急性期、亚急性期、慢性期)呈不可复性减低趋势。

This lesson is to understand the changes of the acute cerebral infarction rabbits' blood-brain barrier after being prinked ,with the observation of image and super microstructural, more study the mechanism that the acupuncture treats the acute cerebral nfarction.

本课题通过脑组织动态CT分析和超微结构的观察，了解针刺后急性脑梗死家兔血脑屏障的改变，进一步探讨针灸治疗急性期脑梗死的机理。

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。