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Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients

OBJECTIVE: To retrospectively summarize the cardiac magnetic resonance imaging (CMRI) findings of isolated noncompaction of ventricular myocardium (INVM). MATERIALS AND METHODS: Eleven patients (M:F = 9:2; mean age, 35 years) were evaluated. Steady-state free precession (SSFP), fast spin echo (SE) s...

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Autores principales: Yun, Hong, Zeng, Meng-su, Jin, Hang, Yang, Shan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Society of Radiology 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3194772/
https://www.ncbi.nlm.nih.gov/pubmed/22043150
http://dx.doi.org/10.3348/kjr.2011.12.6.686
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author Yun, Hong
Zeng, Meng-su
Jin, Hang
Yang, Shan
author_facet Yun, Hong
Zeng, Meng-su
Jin, Hang
Yang, Shan
author_sort Yun, Hong
collection PubMed
description OBJECTIVE: To retrospectively summarize the cardiac magnetic resonance imaging (CMRI) findings of isolated noncompaction of ventricular myocardium (INVM). MATERIALS AND METHODS: Eleven patients (M:F = 9:2; mean age, 35 years) were evaluated. Steady-state free precession (SSFP), fast spin echo (SE) sequence, SSFP cine imaging, and delayed enhanced inversion recovery spoiled gradient echo (IR-SPGR) sequence were used for showing abnormal myocardium, measuring ratio of noncompacted/compacted myocardium layers (NC/C ratio), and detecting myocardial viability. The left ventricle was divided into nine segments and a NC/C ratio > 2.3 in diastole was used as cutoff value in diagnosing left INVM. The right ventricle was assessed qualitatively. RESULTS: Cardiac MRI indicated left INVM in seven patients, right INVM in one patient and biventricle INVM in three patients. Characteristic CMRI changes included prominent trabeculations, deep intertrabecular recesses and an increase in the NC/C ratio. The most frequently involved segments was left ventricular apex. Three patients had abnormal high signals within the trabecular structures on SE T2 weighted image. One ventricular aneurysm and one apical thrombus were also observed. Delayed enhancement was seen in six of nine patients with subendocardial and transmural patterns. CONCLUSION: There are CMRI features that might be characteristic for INVM.
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spelling pubmed-31947722011-11-01 Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients Yun, Hong Zeng, Meng-su Jin, Hang Yang, Shan Korean J Radiol Original Article OBJECTIVE: To retrospectively summarize the cardiac magnetic resonance imaging (CMRI) findings of isolated noncompaction of ventricular myocardium (INVM). MATERIALS AND METHODS: Eleven patients (M:F = 9:2; mean age, 35 years) were evaluated. Steady-state free precession (SSFP), fast spin echo (SE) sequence, SSFP cine imaging, and delayed enhanced inversion recovery spoiled gradient echo (IR-SPGR) sequence were used for showing abnormal myocardium, measuring ratio of noncompacted/compacted myocardium layers (NC/C ratio), and detecting myocardial viability. The left ventricle was divided into nine segments and a NC/C ratio > 2.3 in diastole was used as cutoff value in diagnosing left INVM. The right ventricle was assessed qualitatively. RESULTS: Cardiac MRI indicated left INVM in seven patients, right INVM in one patient and biventricle INVM in three patients. Characteristic CMRI changes included prominent trabeculations, deep intertrabecular recesses and an increase in the NC/C ratio. The most frequently involved segments was left ventricular apex. Three patients had abnormal high signals within the trabecular structures on SE T2 weighted image. One ventricular aneurysm and one apical thrombus were also observed. Delayed enhancement was seen in six of nine patients with subendocardial and transmural patterns. CONCLUSION: There are CMRI features that might be characteristic for INVM. The Korean Society of Radiology 2011 2011-09-27 /pmc/articles/PMC3194772/ /pubmed/22043150 http://dx.doi.org/10.3348/kjr.2011.12.6.686 Text en Copyright © 2011 The Korean Society of Radiology http://creativecommons.org/licenses/by-nc/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Yun, Hong
Zeng, Meng-su
Jin, Hang
Yang, Shan
Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients
title Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients
title_full Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients
title_fullStr Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients
title_full_unstemmed Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients
title_short Isolated Noncompaction of Ventricular Myocardium: a Magnetic Resonance Imaging Study of 11 Patients
title_sort isolated noncompaction of ventricular myocardium: a magnetic resonance imaging study of 11 patients
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3194772/
https://www.ncbi.nlm.nih.gov/pubmed/22043150
http://dx.doi.org/10.3348/kjr.2011.12.6.686
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