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Table 3 The relationship between heart rate and T1 mapping measurements

From: The dynamics of extracellular gadolinium-based contrast agent excretion into pleural and pericardial effusions quantified by T1 mapping cardiovascular magnetic resonance

RR (ms)HR (bpm)T1 (ms)Curve fit uncertainty in SD (ms)T1* (ms)Relaxation (%)
60010033631000100098%
700862948882153096%
800752853464194994%
900672808256219895%
1000602818158238995%
1100552827106249896%
120050285973260497%
130046286754261297%
140043287841264598%
150040291033267498%
  1. The T1 values of a phantom with a reference T1 value of 3011 ms imaged using MOLLI acquisitions with increasing heart rates (HR). The curve fit uncertainty was obtained from the SD maps provided by the MOLLI reconstruction, T1* is the apparent T1 relaxation time constant and relaxation the percentage of relaxation after 8 RR-intervals, immediately before the second inversion of the MOLLI sequence