排序方式: 共有86条查询结果,搜索用时 156 毫秒
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通过对猪心在10℃、19℃、30℃条件下存放的感官检验及TVB—N值的测试,结果经统计分析得环境温度对猪心变质点处TVB—N值无显著性影响(P>0.05),该温度范围内鲜度指标界值为7.3928—mg/100g。 相似文献
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三维超声心动图评价右室容量的实验研究 总被引:1,自引:0,他引:1
目的 评价三维超声重建定量测定右心室容量的准确性。方法 15个离体新鲜猪心模型 ,采用三维超声测量其右室容量 ,并与实测值比较。结果 新鲜猪心模型右室容量的三维超声测量值与实测值分别为 2 3 5 8± 6 4 2ml和 2 1 70± 5 5 1ml,两者间无统计学差异 (P >0 0 5 ) ;且高度相关 (r=0 93,P <0 0 0 1)。结论 三维超声心动图为定量测定右室容量提供了准确和切合临床实用的新方法。用Pearson相关分析。结果一、右室容量 :三维法测量值与实测值分别为2 3 5 8± 6 4 2和 2 1 70± 5 5 1ml ,两者间无统计学差异 (P >0 0 5 ) ,详见表 1。表 1 三维法测量离体新鲜猪心右室容量与实测值比较编号三维法 (ml)实测值 (ml)编号三维法 (ml)实测值 (ml)115 92 16 8917 2 615 32 2 2 3 12 0 5 10 2 6 5 82 2 23 18 2 0 17 5 1118 2 82 1 64 2 6 10 2 2 612 18 5 416 95 3 8 83 3 2 113 2 6 85 2 3 762 5 65 2 3 2 14 2 1 9619 773 4 2 93 5 2 15 19 5 417 882 3 462 0 4二、三维法测量值与实测值之间关系 :相关分析表明 ,两者之间高度相关 (r=0 93,P <0 0 0 1) ,其直线回归方程为Y =1 0 9X +0 0 6 ,(见图 1)。图 1 三维法测量值与实测值之间的关系讨论目前 ,多种影像学技术如心血管造影、 相似文献
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猪心解剖的实践教学与探讨 总被引:2,自引:0,他引:2
心脏是血液循环的动力器官,心脑血管病也已成为当今人类生命各健康受到严重威胁的疾病[1],掌握心脏结构与功能有着重要的意义。猪心的结构与人类几乎相同,观察猪心结构、分析猪心功能对人类心脏结构与功能了解帮助极大,笔者在解剖学实验教学中,充分运用猪心进行替代解剖,取得了 相似文献
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Objective Based on the Helical Ventricular Myocardial Band (HVMB) theory proposed by Torrent-Guasp,the ventricular myocardial hand extends from the root of the pulmonary artery to the root of the aorta with two helical coils.This new theory is considered as a revolutionary concept for further understanding the global, three-dimensional and functional architecture of the ven- tricular myocardium. No repot had described techniques for disecting HVMB while keepin~ the integrity of the coronmy artery sys- tern. We explored techniques for dissecting HVMB in swine.Methads 33 fresh swine hearts were randomly divided intoll groups, 3 bearts in each. 160% barium sulfate (type I)suspmmion was injected into the coronary artery system. The coronary arteries were li- gated. The strial tissue was removed following puuing the hearts in boiling water then cooling for several hours. The superficial coro- nary vessels and fat tissue around the atrio-ventricular taxi inter-ventricular sulcus we~'e preserved. Some branches of the left anterior descending artery, distal segment, of posterior descending branch, and middle and distal segment of obtuse marginal branches were mu- tilated appropriately. HVMB dissection was completed with fingers in accordnce with Torrent Guasp' s technique. Results A contin- ued bundle of muscle, originated at the root of pulmonary artery and ended at the root of aorta, was unwrapped along the major dire- tion of the cardiac muscle fiber in all of the 33 hearts with spating of the coronary artery. The swine hearts' ventricular myocandium was cumosed of two loops, with basal loop firm the root of the pulmonart artery to the anterior papillary muscle and apical from the beginning of the anterior papillary muscle to the root tithe aorta. Each loop consisted of two segments: the right segment-coincid- ing with the right ventricular free wall and the left segment-coinciding with the basal d the left ventricular free wall. Posterior papillary muscle, which belongs to the descendant segment, denmrcated the border between the descendent and the ascendant of the HVMB's apical loop. Conclusion Although controversies about the theory of the HVMB remain, we have dissected the HVMB in the swine hearts' ventricular myocardium successfully with sparing of the coronary artery systems. This dissection procedure provides technical information for the studies of associated diseases based on the theory of HVMB. 相似文献
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目的:综合利用心传导系显示技术,制作满足解剖学教学要求的心传导系标本。方法:用新鲜猪心,经常规解剖显示其大体结构。综合利用一系列心传导系显示技术处理标本。结果:该技术制作的标本,心传导系各结构显示清晰全面,便于教学。结论:该方法制作的心传导系标本能够满足教学及科研使用。 相似文献
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