使用新开发的151通道磁传感器系统进行胎儿S-T段的无创产前记录。
Noninvasive antepartum recording of fetal S-T segment with a newly developed 151-channel magnetic sensor system.
作者信息
Lowery Curtis L, Campbell Joshua Q, Wilson James D, Murphy Pam, Preissl Hubert, Malak Sharp F, Eswaran Hari
机构信息
Department of Obstetrics and Gynecology, University of Arkansas at Little Rock, USA.
出版信息
Am J Obstet Gynecol. 2003 Jun;188(6):1491-6; discussion 1496-7. doi: 10.1067/mob.2003.367.
OBJECTIVE
The objective of this study was to evaluate the efficiency of the detection of the S-T segment in the fetal PQRST complex that is recorded in the antepartum period with the use of a newly developed noninvasive 151-channel magnetic sensor array.
STUDY DESIGN
One hundred two fetal magnetocardiographic recordings were performed on normal fetuses with gestational ages that ranged from 27.5 to 39.5 weeks. After the removal of the interfering maternal heart signals, the fetal heart data were inspected to detect the presence of P, QRS, and T segments.
RESULTS
The QRS complex was detectable in 100%, the P wave was detectable in 95.1%, and the T wave was detectable in 87.3% of the recordings.
CONCLUSION
Fetal magnetocardiography was recorded successfully, the QRS complex was observed in all subjects, and the T detection rate increased, with the gestational age reaching a peak of 97%. Further study of the S-T segment through the antepartum period could lead to advances in the detection of fetal jeopardy before labor.
目的
本研究的目的是评估使用新开发的无创151通道磁传感器阵列在产前记录的胎儿PQRST复合波中检测S-T段的效率。
研究设计
对102例孕周在27.5至39.5周之间的正常胎儿进行胎儿磁心动图记录。去除干扰的母亲心脏信号后，检查胎儿心脏数据以检测P、QRS和T段的存在。
结果
在100%的记录中可检测到QRS复合波，在95.1%的记录中可检测到P波，在87.3%的记录中可检测到T波。
结论
成功记录了胎儿磁心动图，所有受试者均观察到QRS复合波，T波检测率随着孕周增加而提高，在孕周达到97%时达到峰值。通过产前阶段对S-T段的进一步研究可能会在分娩前胎儿危险检测方面取得进展。
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