5 - Excellent
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Blood pool is hyper intense with excellent contrast against the myocardium; myocardium is uniformly bright throughout the cardiac cycle with little evidence of flashing.
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Papillary and endocardial trabeculae are clearly visible in the bright backdrop of the blood pool.
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Image is nearly artifact free.
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4 - Good
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Blood pool is significantly brighter than the myocardium, or myocardial signal intensity is fairly uniform throughout the cardiac cycle.
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Papillary and endocardial trabeculae are visible but somewhat blurred during the cardiac cycle.
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Some motion artifact is present but does not affect overall image quality.
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3 - Moderate
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Image is of diagnostic quality but features significant loss of blood to myocardial contrast or noticeable variation in myocardial signal throughout the cardiac cycle.
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Myocardial walls are barely distinguishable from endocardial trabeculae.
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Motion artifacts are visible, but image is still of diagnostic quality.
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2 - Poor
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Blood-to-myocardial contrast is poor, but the image is still of diagnostic quality.
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Myocardial walls and endocardial trabeculae are significantly blurred.
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Images are nearly nondiagnostic with significant artifacts.
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1 - Nondiagnostic
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Blood-to-myocardial contrast is poor; image was deemed nondiagnostic.
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Blood-to-myocardial edge definition is poor; image was deemed nondiagnostic.
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Image is of nondiagnostic quality.
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