Why the study?
Does thoracic impedance cardiography accurately measure cardiac index compared to Doppler echocardiography in healthy volunteers?
Does thoracic impedance cardiography accurately measure cardiac index compared to Doppler echocardiography in healthy volunteers?
Thoracic impedance cardiography using the Niccomo device is unreliable for assessing absolute or changing cardiac index compared to Doppler echocardiography.
ICG with Niccomo is unreliable for CI vs echocardiography in volunteers; leaves open its validity and should not yet change practice.
Poor correlation and lack of agreement between absolute values of CI measured by ICG and transthoracic Doppler echocardiography were found in resting healthy volunteers. The Niccomo device was also unreliable for monitoring changes in CI during hemodynamic load challenge.
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Fellahi et al. (2009) studied this question.
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