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Fast and precise T1 imaging using a TOMROP sequence.

G Brix·L R Schad·M Deimling·W J Lorenz
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Abstract

Proton spin-lattice (T1) relaxation time images were computed from a data set of 32 gradient-echo images acquired with a fast TOMROP (T One by Multiple Read Out Pulses) sequence using a standard whole-body MR imager operating at 64 MHz. The data acquisition and analysis method which permits accurate pixel-by-pixel estimation of T1 relaxation times is described. As an example, the T1 parameter image of a human brain is shown demonstrating an excellent image quality. For white and gray brain matter, the measured longitudinal relaxation processes are adequately described by a single-component least-squares fit, while more than one proton component has to be considered for fatty tissue. A quantitative analysis yielded T1 values of 547 +/- 36 msec and 944 +/- 73 msec for white and gray matter, respectively.

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G Brix, L R Schad, M Deimling, W J Lorenz. 1990. Fast and precise T1 imaging using a TOMROP sequence.. https://doi.org/10.1016/0730-725x(90)90041-y

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