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Table 4 Correlation coefficient (r) and agreement (mean of difference) studies between in-vivo (from raw or filtered images) ex-vivo left ventricular weight estimation

From: Improving the evaluation of cardiac function in rats at 7T with denoising filters: a comparison study

 

Observer 1

Observer 2

Difference (%)

r

Difference (%)

r

No filter

2.4 ± 5.4

0.961

−2.9 ± 6.7

0.947

Anisotropic filter

8.3 ± 6.4

0.960

−2.5 ± 5.3

0.951

Total variation filter

8.8 ± 6.2

0.960

−1.6 ± 7.5

0.943

Optimized Rician Non-Local Means filter

2.3 ± 5.1

0.960

−0.2 ± 3.8

0.986