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European Radiology
Published in: European Radiology 8/2017

Open Access 01-08-2017 | Head and Neck

Practical use of visual medial temporal lobe atrophy cut-off scores in Alzheimer’s disease: Validation in a large memory clinic population

Authors: Jules J. Claus, Salka S. Staekenborg, Dana C. Holl, Jelmen J. Roorda, Jacqueline Schuur, Pieter Koster, Caroline E. M. Tielkes, Philip Scheltens

Published in: European Radiology | Issue 8/2017

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Abstract

Objective

To provide age-specific medial temporal lobe atrophy (MTA) cut-off scores for routine clinical practice as marker for Alzheimer’s disease (AD).

Methods

Patients with AD (n = 832, mean age 81.8 years) were compared with patients with subjective cognitive impairment (n = 333, mean age 71.8 years) in a large single-centre memory clinic. Mean of right and left MTA scores was determined with visual rating (Scheltens scale) using CT (0, no atrophy to 4, severe atrophy). Relationships between age and MTA scores were analysed with regression analysis. For various MTA cut-off scores, decade-specific sensitivity and specificity and area under the curve (AUC) values, computed with receiver operator characteristic curves, were determined.

Results

MTA strongly increased with age in both groups to a similar degree. Optimal MTA cut-off values for the age ranges <65, 65–74, 75–84 and ≥85 were: ≥1.0, ≥1.5, ≥ 2.0 and ≥2.0. Corresponding values of sensitivity and specificity were 83.3% and 86.4%; 73.7% and 84.6%; 73.7% and 76.2%; and 84.0% and 62.5%.

Conclusion

From this large unique memory clinic cohort we suggest decade-specific MTA cut-off scores for clinical use. After age 85 years, however, the practical usefulness of the MTA cut-off is limited.

Key Points

• We suggest decade-specific MTA cut-off scores for AD.
• MTA cut-off after the age of 85 years has limited use.
• CT is feasible and accurate for visual MTA rating.
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Metadata
Title
Practical use of visual medial temporal lobe atrophy cut-off scores in Alzheimer’s disease: Validation in a large memory clinic population
Authors
Jules J. Claus
Salka S. Staekenborg
Dana C. Holl
Jelmen J. Roorda
Jacqueline Schuur
Pieter Koster
Caroline E. M. Tielkes
Philip Scheltens
Publication date
01-08-2017
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 8/2017
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-016-4726-3

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