Research Article
Semiautomatic, Quantitative Measurement of Aortic Valve Area Using CTA: Validation and Comparison with Transthoracic Echocardiography
Table 2
Observer variability.
| | Relative difference (%) |
| Intraobserver variability, manual | 8.4 ± 7.1 | Intraobserver variability, semiautomatic | 5.8 ± 4.5 | Interobserver variability, manual | 27.6 ± 16.0 | Interobserver variability, semiautomatic | 16.8 ± 12.7 |
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