How Timing Affects Scar Visibility in Heart Imaging
Author Information
Author(s): Vijayakumar Sathya, Kholmovski Eugene G, Marrouche Nassir F
Primary Institution: University of Utah, Salt Lake City, UT, USA
Hypothesis
What time post contrast injection would give optimal contrast between post-ablation scar and blood and scar and normal myocardium?
Conclusion
LGE imaging performed between 25 to 45 minutes post contrast injection gives comparable visibility of post-ablation scar.
Supporting Evidence
- LGE imaging can evaluate post-ablation scar and pre-ablation remodeling of the left atrium.
- The study used a 3T Verio scanner and a full dose of contrast agent.
- CNR was computed for scar visibility in relation to normal myocardium and blood.
Takeaway
This study looked at how long after getting a special dye for heart imaging you should wait to see scars clearly. They found that waiting between 25 to 45 minutes works well.
Methodology
The study analyzed LGE data from 36 patients, divided into three groups based on time post contrast injection, and computed Contrast to Noise Ratios.
Participant Demographics
Patients who underwent post-ablation LGE imaging.
Statistical Information
P-Value
p=0.24, p=0.69, p=0.97, p=0.54
Digital Object Identifier (DOI)
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