Measurement of Rat Magnetocardiograms by Using a High-TC SQUID Magnetometer System

被引：3

作者：

Kim, In-Seon ^{[1
]}

Kwon, Hyuckchan ^{[1
]}

Ahn, San ^{[2
]}

Song, Jong-Hyun ^{[2
]}

机构：

[1] Korea Res Inst Stand & Sci, Taejon 305340, South Korea

[2] Chungnam Natl Univ, Taejon 305764, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

关键词：

Biomagnetic measurement; high-T-C SQUID; magnetocardiography; rat; REPOLARIZATION;

D O I：

10.1109/TASC.2010.2094994

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have measured biomagnetic signals in rat by using a high-T-C SQUID magnetometer system employing a small magnetically shielded box. For the rat cardiac magnetic field measurements, a healthy rat with body weight of about 350 g was anesthetized and fixed on a plastic xyz-stage in supine position inside the magnetically shielded box. We could obtain strong R-peak amplitude up to 56 pT with well defined P-, QRS-, T-wave, and ST-segment separating T-wave from QRS complex. We measured and analysed rat MCG waveforms for 5 x 5 grid measurements covering 60 mm x 60 mm area and 12 circular measurements centered at the heart position. This work demonstrates that the potential advantages of high-T-C SQUID magnetometer system in evaluating the rat MCG measurement for animal models of cardiac electrical activities.

引用

页码：497 / 500

页数：4