Usefulness of Z-score of early diastolic velocities using tissue Doppler imaging in evaluating left ventricular diastolic function in children with dilated cardiomyopathy / 中华超声影像学杂志
Chinese Journal of Ultrasonography
; (12): 27-30, 2019.
Article
in Zh
| WPRIM
| ID: wpr-745130
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WPRO
ABSTRACT
Objective To evaluate the impact of Z-score of early diastolic velocities using tissue Doppler imaging(TDI) in children with dilated cardiomyopathy(DCM) . Methods Fifty-eight children with DCM and 58 healthy children (control group) were selected ,tissue Doppler velocities were converted to Z-score on the basis of body-surface-area-adjusted . The Z-score head-to-head with the raw velocities were compared.Results ①Lateralwalle'velocitiesandinterventricularseptale'velocitieswerepositively correlated with age ( r = 0 .710 ,0 .622;all P < 0 .05 ) . Tissue Doppler velocities and Z-score of mitral annular in DCM children were lower than the normal children( P <0 .001) . ② The discriminant capacity was higher for the Z-score than for the e'raw velocities ,which were assessed by the area under the receiver operating characteristic curves . Conclusions The Z-score of early diastolic velocities are better than the raw velocities in evaluating left ventricular diastolic function in children with dilated cardiomyopathy
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WPRIM
Language:
Zh
Journal:
Chinese Journal of Ultrasonography
Year:
2019
Type:
Article