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Dynamic contrast-enhanced MRI for oncology drug development.

J Magn Reson Imaging. 2016 Aug;44(2):251-64. doi: 10.1002/jmri.25173. Epub 2016 Feb 8.

Dynamic contrast-enhanced MRI for oncology drug development.

Sung YS, Park B, Choi Y, Lim HS, Woo DC, Kim KW, Kim JK.

 

Abstract

 

 

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a promising tool for evaluating tumor vascularity, as it can provide vasculature-derived, functional, and quantitative parameters. To implement DCE-MRI parameters as biomarkers for monitoring the effect of antiangiogenic or vascular-disrupting treatment, two crucial elements of surrogate endpoint, ie, validation and qualification, should be satisfied. Although early studies have shown the accuracy and reliability of DCE-MRI parameters for evaluating treatment-driven vascular alterations, there have been an increasing number of studies demonstrating the limitations of DCE-MRI parameters as surrogate endpoints. Therefore, in order to improve the application of DCE-MRI parameters in drug development, it is necessary to establish a standardized evaluation method and to determine the correct therapeutics-oriented meaning of individual DCE-MRI parameter. In this regard, this article describes the biophysical background and data acquisition/analysis techniques of DCE-MRI while focusing on the validation and qualification issues. Specifically, the causes of disagreement and confusion encountered in the preclinical and clinical trials using DCE-MRI are presented in detail. Finally, considering these limitations, we present potential strategies to optimize implementation of DCE-MRI. J. Magn. Reson. Imaging 2016;44:251-264.

KEYWORDS:

DCE-MRIdrug development; qualification; validation

 

PMID:

26854494

DOI:

10.1002/jmri.25173

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