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Title: Fast spin-echo and fast fluid-attenuated inversion-recovery versus conventional spin-echo sequences for MR quantification of multiple sclerosis lesions
Authors: Bastianello, S.
Bozzao, A.
Paolillo, A.
Giugni, E.
Gasperini, C.
Koudriavtseva, T.
Millefiorini, E.
Horsfield, Mark A.
Colonnese, C.
Toni, D.
Fiorelli, M.
Pozzilli, C.
Bozzao, L.
First Published: 1997
Publisher: American Society of Neuroradiology.
Citation: American Journal of Neuroradiology, 1997, 18, pp.699-704.
Abstract: PURPOSE: To compare fast spin-echo (FSE) and fast fluid-attenuated inversion recovery (FLAIR) sequences with conventional spin-echo (CSE) MR imaging in the quantification of the number and volume of multiple sclerosis lesions. METHODS: In 30 patients with relapsing-remitting multiple sclerosis, we calculated the total number and volume of lesions detected with each of the three sequences using a semiautomated program. RESULTS: On CSE sequences, we calculated a total of 2,583 lesions with a global volume of 836.3 cm3. With FSE sequences, we observed a 16% relative reduction in the number of lesions detected and a 25% relative reduction in global volume as compared with CSE. With fast FLAIR sequences, we detected a significantly lower number and volume of infratentorial lesions, whereas at the cortical/subcortical level the lesions were both more numerous and bulkier than on CSE sequences. Finally, we observed a higher lesion/white matter contrast, a significant reduction in time required for the quantification of lesion load, and a very low interobserver variability in favor of fast FLAIR sequences. CONCLUSION: Despite its limitations in the detection of infratentorial lesions, the fast FLAIR sequence in conjunction with a semiautomated quantification program provides a reliable means to evaluate the total lesion burden in patients with MS.
Type: Article
Description: This article was published in American Journal of Neuroradiology and is available through their website at
Appears in Collections:Published Articles, Dept. of Cardiovascular Sciences

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