Examining the relationship between semiquantitative methods analysing concentration-time and enhancement-time curves from dynamic-contrast enhanced magnetic resonance imaging and cerebrovascular dysfunction in small vessel disease

Bernal J, Valdés-Hernández M, Escudero J, Sakka E, Armitage PA, Makin S, Touyz RM, Wardlaw JM (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Journal of Imaging MDPI

Book Volume: 6

Article Number: 43

Journal Issue: 6

DOI: 10.3390/jimaging6060043

Abstract

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) can be used to examine the distribution of an intravenous contrast agent within the brain. Computational methods have been devised to analyse the contrast uptake/washout over time as reflections of cerebrovascular dysfunction. However, there have been few direct comparisons of their relative strengths and weaknesses. In this paper, we compare five semiquantitative methods comprising the slope and area under the enhancement-time curve, the slope and area under the concentration-time curve (SlopeCon and AUCCon), and changes in the power spectrum over time. We studied them in cerebrospinal fluid, normal tissues, stroke lesions, and white matter hyperintensities (WMH) using DCE-MRI scans from a cohort of patients with small vessel disease (SVD) who presented mild stroke. The total SVD score was associated with AUCCon in WMH (p < 0.05), but not with the other four methods. In WMH, we found higher AUCCon was associated with younger age (p < 0.001) and fewer WMH (p < 0.001), whereas SlopeCon increased with younger age (p > 0.05) and WMH burden (p > 0.05). Our results show the potential of different measures extracted from concentration-time curves extracted from the same DCE examination to demonstrate cerebrovascular dysfunction better than those extracted from enhancement-time curves.

Involved external institutions

University of Edinburgh GB United Kingdom (GB) University of Sheffield GB United Kingdom (GB) University of Glasgow GB United Kingdom (GB)

How to cite

APA:

Bernal, J., Valdés-Hernández, M., Escudero, J., Sakka, E., Armitage, P.A., Makin, S.,... Wardlaw, J.M. (2020). Examining the relationship between semiquantitative methods analysing concentration-time and enhancement-time curves from dynamic-contrast enhanced magnetic resonance imaging and cerebrovascular dysfunction in small vessel disease. Journal of Imaging, 6(6). https://doi.org/10.3390/jimaging6060043

MLA:

Bernal, Jose, et al. "Examining the relationship between semiquantitative methods analysing concentration-time and enhancement-time curves from dynamic-contrast enhanced magnetic resonance imaging and cerebrovascular dysfunction in small vessel disease." Journal of Imaging 6.6 (2020).

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