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. 1987 Jan-Feb;8(1):65-70.

MR imaging: possibility of tissue characterization of brain tumors using T1 and T2 values

M Komiyama, H Yagura, M Baba, T Yasui, A Hakuba, S Nishimura, Y Inoue

MR imaging: possibility of tissue characterization of brain tumors using T1 and T2 values

M Komiyama et al. AJNR Am J Neuroradiol. 1987 Jan-Feb.

Erratum in

  • AJNR 1987 Mar-Apr;8(2):270

Abstract

To evaluate the usefulness of T1 and T2 values for tissue characterization of brain tumors, 37 histologically confirmed brain tumors were examined with a 0.5-T superconductive MR system. With spin-echo and inversion-recovery imaging sequences, computed T1 and T2 images were reconstructed, and T1 and T2 values of the tumors were calculated. Relaxation rates (1/T1 and 1/T2), T1/T2 ratios, and malignancy indexes, which were originally designed for gastrointestinal tumors, were also calculated. Values of all these parameters were so wide-ranged that it was impossible to characterize the tumor tissue types.

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