Tissue Characterisation

Three workflows for a complete analysis of tissue characteristics of the myocardial tissue

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Tissue Characterisation

Caas MR Tissue Characterization includes three workflows: Viability, First-Pass Perfusion, and Tissue Mapping. Differentiate between viable and non-viable tissue using regional infarct classification based on delayed-enhanced MR images. Assess myocardial edema based on T2-weight­ed images. By combining segmental infarct and edema areas, salvageable areas in the area at risk can be identified. Analyze rest and stress perfusion image sets side by side in the first-pass perfusion workflow to determine myocardial per­fusion. Tissue mapping by discriminating between T1 and T2 tissue contrast is a unique strength of MRI. It allows the analysis of T1, T2, and T2* relaxation values. Relaxation values are translated into a color map for easy visualization of affected tissue. Visualization of T1 relaxation values is supported for look-locker and modified look-locker sequences.

Key Results:

• Infarct volume and transmurality
• Salvageable area index
   
• Time-Intensity curve parameters
• Myocardial Perfusion Reserve Index (MPRi) derived by comparing rest and stress
   
• T1, T2, T2* relaxation values
• Parametric color maps

The Viability Analysis workflow is not 510(k) cleared and therefore not meant for clinical decision making.