| Autor: |
Jennifer Romanowicz, Alessandra M. Ferraro, Jamie K. Harrington, Lynn A. Sleeper, Adi Adar, Philip T. Levy, Andrew J. Powell, David M. Harrild |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography. |
| ISSN: |
1097-6795 |
| Popis: |
Strain values vary with age in children and are both vendor- and platform-specific. Philips QLab 10.8 and Tomtec AutoStrain are two widely-utilized strain analysis platforms, and both incorporate recent EACVI-ASE-Industry Strain Standardization Task Force guidelines. We sought to establish normal strain values and Z-scores for both platforms using a large dataset of healthy children and to compare values among these two platforms and a previous version-QLab 10.5-which predated the Task Force guidelines.Echocardiograms from 1,032 subjects21 years old with structurally and functionally normal hearts were included. Images were obtained on the Philips EPIQ platform. Left ventricular (LV) and right ventricular (RV) strain were analyzed using QLab 10.8 and AutoStrain and measurement reliability was assessed. Z-score equations were derived as a function of age for QLab 10.8 (LV longitudinal and circumferential strain) and AutoStrain (LV and RV longitudinal strain). A subset (n=309) was analyzed by QLab 10.5. Strain values were compared among the three platforms.For both of the newer platforms, strain varied with age, with magnitude reaching a maximum at 4-5 years. For LV longitudinal strain, the largest differences in value were observed in the youngest patients when using QLab 10.5; the other two platforms were similar. LV circumferential strain measurements (QLab 10.5 vs 10.8) were different for all ages, as were measurements of RV longitudinal strain (QLab 10.8 vs AutoStrain). Reliability was greater for AutoStrain than for QLab 10.8, and greater for LV than for RV strain.We generated normal RV and LV strain values and Z-scores from a large cohort of children for two commonly-utilized platforms in pediatric echocardiography laboratories. Following incorporation of Task Force guidelines, the greatest improvement in standardization was seen in infants. Small differences persist between modern platforms; however, these results support the cautious consideration of comparing inter-platform measurements. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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