We evaluated the validity of total ejection isovolume(TEI) index measurement
by continuous wave Doppler method in 82 patients with various heart diseases.
Validity was evaluated by correlation and regression analyses of the values
measured by the continuous wave Doppler method and those recorded by the
standard pulsed Doppler method. In addition, we also studied the effect
on left ventricular dilatation, which may account for a difference between
the values obtained by the pulsed Doppler and continuous wave Doppler methods.
Our results showed a good correlation between the TEI indices measured
by the continuous wave Doppler method and those recorded by the pulsed
Doppler method. However, a significant constant systematic error was observed,
and the value obtained by the continuous wave Doppler method was larger.
Therefore, while it is possible to measure TEI index using the continuous
wave Doppler method, evaluation criteria different from those adopted in
the pulsed Doppler method may have to be used. Left ventricular dilatation
has little influence on the difference between the two methods.
[Rinsho Byori 50 : 820〜823, 2002]
*1Department of Clinical Laboratory, Teikyo University Ichihara Hospital, Ichihara 299-0111
【Key Words】total ejection isovolume index，myocardial performance index，pulsed Doppler echocardi-ography(パルスドプラ心エコー図)，continuous wave Doppler echocardiography(連続波ドプラ心エコー図)
受付2002年4月25日・受理2002年7月11日
*1,2帝京大学医学部附属市原病院中央検査部(〒299-0111 市原市姉崎3426-3)
E-mail :kim@med.teikyo-u.ac.jp