Abstract
To analyze cardiac magnetic resonance imaging (CMR) characteristics in patients with isolated left ventricular noncompaction (IVNC) and assess its value in the diagnosis of IVNC in a Chinese adult Han population. We collected a consecutive series of 30 patients with IVNC from January 1, 2007, to December 31, 2008. During the same period, we prospectively included patients drawn from groups given a potential differential diagnosis for IVNC. All magnetic resonance images were analyzed using 17-segment model. Left ventricular ejection fraction was significantly lower for patients with DCM (16.2 ± 5.2%, P < 0.001) and higher in AR (47.6 ± 16.2%, P = 0.009), AS (54.6 ± 21.1%, P = 0.001) and HHD (62.4 ± 6.8%, P < 0.001) compared with IVNC (33.0 ± 14.1%). The two-layered structure was most frequently seen at the apical segments, followed by the mid-cavity and basal segments in patients with INVC. The anterior and lateral walls were more commonly involved in patients with IVNC. The number of noncompacted segments and end-diastolic ratio of non-compacted to compacted myocardium (NC/C ratio) was greater in patients with IVNC than in other five groups. The end-diastolic NC/C ratio of >2.5 had 96.4% sensitivity and 97.4% specificity for identifying patients with IVNC. CMR provides an accurate and reliable evaluation of the localization and extent of noncompacted myocardium at end-diastole. The end-diastolic NC/C ratio of >2.5 had high diagnostic accuracy for IVNC in a Chinese adult Han population.
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Acknowledgments
The authors express their heartfelt gratitude to the staff and members of the department of radiology, department of echocardiography and division of cardiology for their assistance in various measurements, diagnosis and other organizational aspects of this study. This work was supported in part by grants No. 30670609 and 81071199 from the National Natural Science Foundation of China, by grant No. 20050023042 from Research Fund for the Doctoral Program of Higher Education of China and by grant No. 2009-1004 from Research Foundation of Capital Medical Development.
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Cheng, H., Zhao, S., Jiang, S. et al. Cardiac magnetic resonance imaging characteristics of isolated left ventricular noncompaction in a Chinese adult Han population. Int J Cardiovasc Imaging 27, 979–987 (2011). https://doi.org/10.1007/s10554-010-9741-x
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DOI: https://doi.org/10.1007/s10554-010-9741-x