目的: 探讨128排256层螺旋计算机断层扫描(CT)血管造影术在评估非ST段抬高心肌梗死(NSTEMI)危险程度中的应用。方法: 选取2017年7月至2018年2月本院NSTEMI患者152例,所有患者均给予128排256层螺旋CT血管造影术、冠脉造影(CAG)检查,分析CT血管造影术对NSTEMI冠脉狭窄及其危险程度的评估价值。结果: 在检查NSTEMI无、轻度、中度、重度冠脉狭窄方面,CAG检查分别为18例、30例、62例、42例,CT血管造影术分别为19例、31例、62例、40例；以CAG为对照,CT血管造影术评估NSTEMI冠脉狭窄的敏感度、特异度、准确度分别为98.51%、94.44%、98.03%,差异无统计学意义(P>0.05)；以CAG为对照,CT血管造影术评估NSTEMI轻度、中度、重度冠脉狭窄的符合率分别为为86.67%、90.32%、90.48%,Kappa值为0.765,两种检查具有良好的的相关性。结论: 128排256层螺旋CT血管造影术可有效评估NSTEMI的冠脉狭窄及其危险程度,可作为一种早期评估NSTEMI病情的无创、简易、准确筛查方法,值得临床作进一步推广。

目的：探讨心舒宝对大鼠心肌梗死的保护作用及其药理机制,为临床用药提供理论依据。方法：0.25 g/mL心舒宝灌胃二周后诱导大鼠心肌梗死模型,二周后进行大鼠心肌组织的Masson’s Trichrome 染色实验;利用胰酶消化方法分离大鼠心脏原代内皮细胞,并培养于培养液。用0.005%,0.01%,0.05%的心舒宝处理细胞后,缺氧培养24 h、48 h,流式细胞仪分析其凋亡率。结果：心舒宝处理组的大鼠心肌梗死面积及其切面胶原明显小于对照组（P＜0.01）;0.005% 心舒宝处理的大鼠心脏原代内皮细胞在缺氧48 h后,其凋亡明显降低（P＜0.01）。结论：心舒宝可能通过降低大鼠心脏原代内皮细胞的凋亡而发挥保护大鼠心肌梗死的作用。

利用激光光镊拉曼光谱系统, 测定了健康者红细胞和心肌梗死患者的红细胞拉曼光谱, 研究其拉曼光谱之间存在的差异性, 探讨其红细胞内容物的改变情况及其变化机理, 为疾病的诊断提供一种新的、快速简便的光谱分析手段, 为临床诊断提供有力的实验依据。

We have recently proposed an optical method for assessing heart structure that uses polarized light measurement of birefringence as an indicator of tissue anisotropy. The highly aligned nature of healthy cardiac muscle tissue has a detectable effect on the polarization of light, resulting in a measurable phase shift (“retardance”). When this organized tissue structure is perturbed, for example after cardiac infarction (heart attack), scar tissue containing disorganized collagen is formed, causing a decrease in the measured retardance values. However, these are dependent not only on tissue anisotropy, but also on the angle between the tissue’s optical anisotropy direction and the beam interrogating the sample. To remove this experimental ambiguity, we present a method that interrogates the sample at two different incident beam angles, thus yielding enough information to uniquely determine the true magnitude and orientation of the tissue optical anisotropy. We use an infarcted porcine heart model to compare these polarimetryderived anisotropy metrics with those obtained with diffusion tensor magnetic resonance imaging (DT-MRI). The latter yields the anisotropy and the direction of tissue water diffusivity, providing an independent measure of tissue anisotropy. The optical and MR results are thus directly compared in a common ex vivo biological model of interest, yielding reasonable agreement but also highlighting some technique-specific differences.

目的: 观察尿激酶静脉溶栓治疗急性心肌梗死的疗效.方法:将66例急性心肌梗塞住院患者随机分成两组,溶栓组35例在常规治疗的同时,用尿激酶静脉溶栓治疗,非溶栓组仅用常规治疗,两组进行比较分析.结果: 溶栓组血管再通率74.3%,非溶栓组为25.81%,两组间有明显差异(P<0.05),住院4周的病死率,溶栓组为2.86%,非溶栓组为16.16%,两组间有显著差异(P<0.01).结论: 尿激酶静脉溶栓能明显提高急性心肌梗死患者的血管再通率和抢救成功??降低近期病死率.