One study including 85 ATTR and 79 AL amyloidosis patients reported mean native T1 values of 1097 ± 43 ms for ATTR and 1130 ± 68 ms for AL, with an area under the curve (AUC) around 0.85 for distinguishing amyloidosis from other hypertrophic phenotypes [65]. This evidence concerns the gene TTR and axial length measurement.