Biplane stress echocardiography using a prototype matrix-array transducer - 28/08/11
Abstract |
Background |
Rapid image acquisition after cessation of exercise is essential for accurate stress echocardiography. Recently, a prototype matrix-array transducer has been developed that allows simultaneous acquisition of 2 imaging planes (biplane [BP] imaging).
Methods |
In all, 19 healthy volunteers underwent 2 separate stress echocardiographic studies. Images were acquired in traditional 2-dimensional or BP format pre-exercise and postexercise.
Results |
Total image acquisition time for 2-dimensional stress echocardiography was 38 ± 8 seconds versus 29 ± 8 seconds for BP imaging (P < .05). Heart rates were acquired closer to age-predicted maximum with BP imaging in the apical 3- and 2-chamber and parasternal long- and short-axis views (82%, 75%, 70%, 70% for BP vs 76%, 72%, 68%, 66% for 2-dimensional, respectively).
Conclusion |
BP imaging using a recently developed matrix-array probe allows more rapid imaging postexercise, resulting in acquisition of poststress images at higher heart rates without compromising image quality.
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Vol 16 - N° 9
P. 937-941 - septembre 2003 Retour au numéro
Article précédent
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