Fig. 4From: Splenic T1-mapping: a novel quantitative method for assessing adenosine stress adequacy for cardiovascular magnetic resonanceROC curves of native ΔT1spleen for replicating the gadolinium-based “splenic switch-off” sign. A ΔT1spleen threshold of ≥ −30 ms replicated the “splenic switch-off” sign (AUC 0.90 ± 0.05, p < 0.0001), with high sensitivity 90%, specificity 88% and diagnostic accuracy 90%Back to article page