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  • Title: Cardiac amyloidosis: MR imaging findings and T1 quantification, comparison with control subjects.
    Author: Krombach GA, Hahn C, Tomars M, Buecker A, Grawe A, Günther RW, Kühl HP.
    Journal: J Magn Reson Imaging; 2007 Jun; 25(6):1283-7. PubMed ID: 17520735.
    Abstract:
    In cardiac amyloidosis an interstitial deposition of amyloid fibrils causes concentric thickening of the atrial and ventricular walls. We describe the results of tissue characterization of the myocardium by T1 quantification and MRI findings in a patient with cardiac amyloidosis. The T1 time of the myocardium was elevated compared to that in individuals without amyloidosis. The T1 time of the myocardium was 1387 +/- 63 msec (mean value obtained from four measurements +/- standard deviation [SD]) in the patient with cardiac amyloidosis, while the reference value obtained from the myocardium of 10 individuals without known myocardial disease was 1083 +/- 33 msec (mean value +/- SD). In combination with other MR findings suggestive of amyloidosis, such as homogeneous thickening of the ventricular and atrial walls, thickening of the valve leaflets, restrictive filling pattern, and reduction of systolic function, T1 quantification may increase diagnostic confidence.
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