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. 1988 Dec;38(12):1822-5.
doi: 10.1212/wnl.38.12.1822.

Criteria for an increased specificity of MRI interpretation in elderly subjects with suspected multiple sclerosis

F Fazekas  1 , H Offenbacher, S Fuchs, R Schmidt, K Niederkorn, S Horner, H Lechner
Affiliations

Criteria for an increased specificity of MRI interpretation in elderly subjects with suspected multiple sclerosis

F Fazekas et al. Neurology. 1988 Dec.

Abstract

We reviewed the MRIs of 49 asymptomatic volunteers (age range, 31 to 77 years) and of 50 MS patients (age range, 14 to 63) for areas of increased signal (AIS) and features discriminating MS lesions from lesions seen with normal aging. We obtained optimal specificity of MRI interpretation (100%) if we required at least two of the following three AIS features--size greater than or equal to 6 mm, abutting ventricular bodies, infratentorial location--for a positive MRI diagnosis of MS. Applying these criteria to the MRIs of elderly patients with suspected MS should significantly improve specificity (p less than 0.001) over current quantitative criteria (at least three AIS greater than or equal to 3 mm) without significantly decreasing sensitivity.

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