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Table 2 Summary of physiological effects on ShMOLLI T1 measurements

From: Normal variation of magnetic resonance T1 relaxation times in the human population at 1.5 T using ShMOLLI

Physiologic Factor Myocardial T1 Blood T1
Gender (female, <45 years) +24 ms +130 ms
↑ Age (females only) ↓ 8 ms/10 years ↓ 20 ms/10 years
↓ Hematocrit - ↑↑ 11 ms/%
↑ Heart rate ↑ 6 ms/10 bpm ↓ 20 ms/10 bpm
↑ Myocardial thickness - ↓ 23 ms/mm
↑ Height - -
↑ Weight - ↓ 20 ms/10 kg
↑ BMI - ↓ 7 ms/kg/m2