The SIENA/FSL whole brain atrophy algorithm is no more reproducible at 3T than 1.5T for Alzheimer's disease

Keith S. Cover, Ronald A. van Schijndel, Veronica Popescu, Bob W. Van Dijk, Alberto Redolfi, Dirk L. Knol, Giovanni B. Frisoni, Frederik Barkhof, Hugo Vrenken

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The back-to-back (BTB) acquisition of MP-RAGE MRI scans of the Alzheimer's Disease Neuroimaging Initiative (ADNI1) provides an excellent data set with which to check the reproducibility of brain atrophy measures. As part of ADNI1, 131 subjects received BTB MP-RAGEs at multiple time points and two field strengths of 3. T and 1.5. T. As a result, high quality data from 200 subject-visit-pairs was available to compare the reproducibility of brain atrophies measured with FSL/SIENA over 12 to 18 month intervals at both 3. T and 1.5. T. Although several publications have reported on the differing performance of brain atrophy measures at 3. T and 1.5. T, no formal comparison of reproducibility has been published to date. Another goal was to check whether tuning SIENA options, including -B, -S, -R and the fractional intensity threshold (f) had a significant impact on the reproducibility. The BTB reproducibility for SIENA was quantified by the 50th percentile of the absolute value of the difference in the percentage brain volume change (PBVC) for the BTB MP-RAGES. At both 3. T and 1.5. T the SIENA option combination of "-B f=0.2", which is different from the default values of f=0.5, yielded the best reproducibility as measured by the 50th percentile yielding 0.28 (0.23-0.39)% and 0.26 (0.20-0.32)%. These results demonstrated that in general 3. T had no advantage over 1.5. T for the whole brain atrophy measure - at least for SIENA. While 3. T MRI is superior to 1.5. T for many types of measurements, and thus worth the additional cost, brain atrophy measurement does not seem to be one of them.

Original languageEnglish
Pages (from-to)14-21
Number of pages8
JournalPsychiatry Research - Neuroimaging
Volume224
Issue number1
DOIs
Publication statusPublished - 2014

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Atrophy
Alzheimer Disease
Brain
Neuroimaging
Publications
Magnetic Resonance Imaging
Costs and Cost Analysis

Keywords

  • Alzheimer's
  • Back-to-back
  • Brain atrophy
  • FSL
  • Reproducibility'

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Radiology Nuclear Medicine and imaging
  • Neuroscience (miscellaneous)
  • Medicine(all)

Cite this

The SIENA/FSL whole brain atrophy algorithm is no more reproducible at 3T than 1.5T for Alzheimer's disease. / Cover, Keith S.; van Schijndel, Ronald A.; Popescu, Veronica; Van Dijk, Bob W.; Redolfi, Alberto; Knol, Dirk L.; Frisoni, Giovanni B.; Barkhof, Frederik; Vrenken, Hugo.

In: Psychiatry Research - Neuroimaging, Vol. 224, No. 1, 2014, p. 14-21.

Research output: Contribution to journalArticle

Cover, Keith S. ; van Schijndel, Ronald A. ; Popescu, Veronica ; Van Dijk, Bob W. ; Redolfi, Alberto ; Knol, Dirk L. ; Frisoni, Giovanni B. ; Barkhof, Frederik ; Vrenken, Hugo. / The SIENA/FSL whole brain atrophy algorithm is no more reproducible at 3T than 1.5T for Alzheimer's disease. In: Psychiatry Research - Neuroimaging. 2014 ; Vol. 224, No. 1. pp. 14-21.
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