Objectives: To investigate the diagnostic accuracy of the current criterion, noncompacted-to-compacted (NC/C) wall ratio > 2.3 on
cardiac magnetic resonance imaging (CMRI) for the diagnosis of left ventricular noncompaction (LVNC).
Materials and Methods: We retrospectively enrolled 37 patients as an LVNC group and a total of 97 participants with ischemic,
hypertrophic, and dilated cardiomyopathy and healthy controls as a control group. The NC/C ratio was measured perpendicularly
on short-axis cine images for segments 1-16 and four-chamber cine images for the apex during the end-diastole. The sensitivity,
specificity, and diagnostic accuracy of NC/C ratio > 2.3 for the diagnosis of LVNC were calculated.
Results: LVNC patients comprised 24 males (64.8%) and 13 females (35.2%) with the mean age of 29.24 ± 11.79 years. The NC/C ratio
> 2.3 detected in all but one of the LVNC patients (97.3%). On the other hand, the specificity of NC/C ratio > 2.3 was 79.4% for the
diagnosis of the LVNC patients. Using NC/C ratio > 2.66 and > 2.8 yielded 91.9% sensitivity and 97% specificity, and 81% sensitivity
and 100% specificity, respectively.
Conclusion: NC/C ratio > 2.3 might lead to overdiagnosis of LVNC. We suggest using higher NC/C cut-off value in individuals
without high clinical suspicion of LVNC.
Primary Language | English |
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Subjects | Clinical Sciences |
Journal Section | Original Research |
Authors | |
Publication Date | October 31, 2019 |
Published in Issue | Year 2019 Volume: 32 Issue: 3 |