Fig. 5
Potential splenic ΔT1spleen-guided protocol for real-time assessment and optimization of stress adequacy before gadolinium perfusion. Practical T1spleen assessment using ShMOLLI typically takes around 30 s: breath-hold instructions (5 s), T1-map acquisition over 9-heart-beats (~10 s, shorter with higher stress heart rates), on-screen image reconstruction (5–10 s), splenic-ROI placement directly on CMR console screen by the operator (5 s) followed by immediate display of T1spleen/SD estimations (as indicated). The ability of this protocol to improve the quality of stress responses deserves validation in future studies