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102 THE REPRODUCIBILITY AND ANALYSIS TIME OF CARDIAC MAGNETIC RESONANCE FEATURE TRACKING: POTENTIAL FOR CLINICAL APPLICATION
  1. R J Taylor,
  2. F Umar,
  3. W E Moody,
  4. J Townend,
  5. R P Steeds,
  6. F Leyva
  1. University Hospital Birmingham

    Abstract

    Background Myocardial strain imaging has the potential for clinical application in the detection of pre-clinical disease, stress induced myocardial dysfunction and dyssynchrony. Feature-tracking cardiovascular magnetic resonance (FT-CMR) uses routine CMR imaging (steady-state free-precession imaging) to calculate myocardial strain.

    Table 1

    Methods Healthy volunteers (n=20, age: 42±13 years, 11 (55%) male) underwent a standard protocol CMR. Endocardial and epicardial borders were manually drawn and automatically tracked through the cardiac cycle.

    Results As shown in the Table, circumferential strain (Ecc) was the most reproducible, followed by longitudinal strain (ELL) and radial strain (Err). FT-CMR analysis time was 3±1 mins.

    Conclusions FT-CMR is highly reproducible within operators, particularly with respect to Ecc. This, together with a short time required for analysis, enhances the potential of this imaging modality in clinical practice.

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