Quantitative error mapping of MR relaxation times

Wilburn E. Reddick; Robert J. Ogg

doi:10.1117/12.208332

8 May 1995 Quantitative error mapping of MR relaxation times

Wilburn E. Reddick, Robert J. Ogg

Author Affiliations +

Proceedings Volume 2432, Medical Imaging 1995: Physics of Medical Imaging; (1995) https://doi.org/10.1117/12.208332
Event: Medical Imaging 1995, 1995, San Diego, CA, United States

Abstract

We present statistically based error maps which graphically display the spatial distribution of two computational errors ensuing from quantitative T1 measurements. These computational errors, chi-squared error and coefficient of variation, represent the measures of goodness-of-fit and of the reliability of the fitted parameters, respectively. Visualization of the spatial distribution and assessment of the magnitude of these errors for each pixel allows one to compare and optimize quantitative MR imaging techniques to estimate tissue relaxation parameters and provides clinicians a method to differentiate the unreliable regions. This error mapping technique is demonstrated for a control study of seventy-one healthy volunteers to illustrate the patterns characteristic in these examinations.

Citation Download Citation

Wilburn E. Reddick and Robert J. Ogg "Quantitative error mapping of MR relaxation times", Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); https://doi.org/10.1117/12.208332

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