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Abstract

MR enhancement of brain lesions: increased contrast dose compared with magnetization transfer.

M Knauth, M Forsting, M Hartmann, S Heiland, T Balzer and K Sartor
American Journal of Neuroradiology November 1996, 17 (10) 1853-1859;
M Knauth
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M Forsting
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M Hartmann
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S Heiland
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T Balzer
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K Sartor
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Abstract

PURPOSE To compare image contrast and lesion conspicuity of enhancing intracranial lesions obtained with T1-weighted and magnetization transfer T1-weighted spin-echo sequences after administration of standard (0.1 mmol/kg body weight) and triple doses of gadobutrol.

METHODS Twenty-four patients with a total of 34 enhancing intracranial lesions were studied with T1-weighted and magnetization transfer T1-weighted spin-echo MR imaging. An incremental dose technique was used with intravenous injections of 0.1 and 0.2 mmol/kg body weight gadobutrol. Lesion-to-white matter contrast and white matter-to-edema contrast were calculated.

RESULTS The lesion-to-white matter contrast of the magnetization transfer T1-weighted studies was significantly higher than that of the T1-weighted studies when identical doses of gadobutrol were compared. The lesion-to-white matter contrast was not significantly different on the triple-dose T1-weighted study and the standard-dose magnetization transfer T1-weighted study. Two lesions were visible only on the standard-dose magnetization transfer T1-weighted and the triple-dose studies.

CONCLUSION Standard-dose magnetization transfer T1-weighted and triple-dose T1-weighted spin-echo MR studies are equally well suited to increase the lesion-to-white matter contrast in patients with enhancing intracranial lesions. Triple-dose magnetization transfer T1-weighted studies further increase lesion-to-white matter contrast but do not show additional lesions.

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American Journal of Neuroradiology
Vol. 17, Issue 10
1 Nov 1996
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MR enhancement of brain lesions: increased contrast dose compared with magnetization transfer.
M Knauth, M Forsting, M Hartmann, S Heiland, T Balzer, K Sartor
American Journal of Neuroradiology Nov 1996, 17 (10) 1853-1859;

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MR enhancement of brain lesions: increased contrast dose compared with magnetization transfer.
M Knauth, M Forsting, M Hartmann, S Heiland, T Balzer, K Sartor
American Journal of Neuroradiology Nov 1996, 17 (10) 1853-1859;
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