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差异向量:对变化或干预效果的评估。

The difference vector: assessment of effects of changes or interventions.

作者信息

Nelson C V, Hodgkin B C, Bonner R A, Angelakos E T

出版信息

Am Heart J. 1978 Feb;95(2):220-7. doi: 10.1016/0002-8703(78)90466-0.

DOI:10.1016/0002-8703(78)90466-0
PMID:622955
Abstract

Vector dipole moments were measured on young pigs before and one week after ligation of the left anterior descending coronary artery. Vectors were obtained for the three peaks of vector spatial magnitude, M. Preoperative, postoperative, and difference vectors were measured for each peak. If excitation is normal except through the infarcted tissue, the difference vector should be more closely related to the infarct because the normal excitation cancels out. It was found that the postoperative vector was changed by the infarct but that the difference vector was a better indication of infarction. This paper was designed to introduce the method using experimental data for a small number of pigs.

摘要

在年轻猪身上,于结扎左冠状动脉前降支之前及之后一周测量向量偶极矩。针对向量空间大小M的三个峰值获取向量。对每个峰值测量术前、术后及差值向量。如果除梗死组织外兴奋正常,由于正常兴奋相互抵消,差值向量应与梗死更密切相关。结果发现,术后向量因梗死而改变,但差值向量更能准确指示梗死情况。本文旨在介绍利用少量猪的实验数据的方法。

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