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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