Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases
Introduction: Rheumatic heart disease is the most common cause of valvular heart disease throughout the world. Echocardiography is the dominant imaging investigation in the assessment of cardiac valvular disease and the role of Magnetic Resonance Imaging (MRI) is so far limited. However, due to...
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JCDR Research and Publications Private Limited
2016-03-01
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| author | PHANI CHAKRAVARTY MUTNURU SN SINGH JOHN D’ SOUZA LAKSHMI MANASA PERUBHOTLA |
| author_facet | PHANI CHAKRAVARTY MUTNURU SN SINGH JOHN D’ SOUZA LAKSHMI MANASA PERUBHOTLA |
| author_sort | PHANI CHAKRAVARTY MUTNURU |
| collection | DOAJ |
| description | Introduction: Rheumatic heart disease is the most common
cause of valvular heart disease throughout the world.
Echocardiography is the dominant imaging investigation in the
assessment of cardiac valvular disease and the role of Magnetic
Resonance Imaging (MRI) is so far limited. However, due to
rapid improvements in the cardiac MRI technology in past few
years, this non invasive technique is gaining interest in the
examination of cardiac valves.
Aim: Our study was undertaken to define the role of MRI in the
evaluation of Rheumatic valvular heart disease and to compare
the role of MRI with transthoracic echocardiography with regard
to quantity of stenosis and volume regurgitation.
Materials and Methods: ECG gated Cardiac MRI was
performed with a 1.5-Tesla system (MAGNETOM SYMPHONYModel 2005) using basic cardiac software (Argus viewer)
by a phased-array multicoil on 50 subjects who were known
cases of Rheumatic valvular heart disease. A chest radiograph
and echocardiography were done in all patients before MR
examination. Informed consent was taken from all patients.
Results: Mitral stenosis either as an isolated valvular
abnormality or in combination with other valvular abnormalities
constituted the major bulk of Rheumatic valvular heart disease
in our study population. The average ejection fraction by ECHO
is 64.94±7.11 and by MRI 67.52±7.84. The average mitral valve
area by ECHO is 1.79±0.43 cm2
and by MRI 1.82±0.47 cm2
. The
average aortic valve area by ECHO is 1.10±0.21 cm2
and by
MRI 1.12±0.25 cm2
. The Coefficient of Correlation (r) is 0.82 for
ejection fraction, 0.98 for mitral valve area and 0.92 for aortic
valve area which means a strong positive association between
the results by ECHO and MRI. In all instances, the p-value is
<0.00001, suggesting that the test is highly significant.
Conclusion: In our study echocardiography was found to be
the gold standard for the diagnosis of Rheumatic valvular heart
disease and the role of MRI remained only complimentary to
Echocardiography. However with advanced cardiac software,
more advanced techniques, and faster imaging sequences, MRI
may become a valuable procedure for investigation and followup of patients with valvular heart disease. |
| first_indexed | 2024-12-11T15:09:20Z |
| format | Article |
| id | doaj.art-a7fda2f48338479b909f905be8905d58 |
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| issn | 2249-782X 0973-709X |
| language | English |
| last_indexed | 2024-12-11T15:09:20Z |
| publishDate | 2016-03-01 |
| publisher | JCDR Research and Publications Private Limited |
| record_format | Article |
| series | Journal of Clinical and Diagnostic Research |
| spelling | doaj.art-a7fda2f48338479b909f905be8905d582022-12-22T01:00:48ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2016-03-01103TC06TC0910.7860/JCDR/2016/18059.7405Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart DiseasesPHANI CHAKRAVARTY MUTNURU0SN SINGH1JOHN D’ SOUZA2LAKSHMI MANASA PERUBHOTLA3Assistant Professor, Department of Radiology, Nizam’s Institute of Medical Sciences, Punjagutta, Hyderabad, India.Head of Department, Department of Radiology, INHS Kalyani, Visakhapatnam, India.Professor, Department of Radiology, Bharati Vidyapeeth Medical Foundation, Pune, India.Ex Lecturer, Department of Pathology, Nizam’s Institute of Medical Sciences, Punjagutta, Hyderabad, India.Introduction: Rheumatic heart disease is the most common cause of valvular heart disease throughout the world. Echocardiography is the dominant imaging investigation in the assessment of cardiac valvular disease and the role of Magnetic Resonance Imaging (MRI) is so far limited. However, due to rapid improvements in the cardiac MRI technology in past few years, this non invasive technique is gaining interest in the examination of cardiac valves. Aim: Our study was undertaken to define the role of MRI in the evaluation of Rheumatic valvular heart disease and to compare the role of MRI with transthoracic echocardiography with regard to quantity of stenosis and volume regurgitation. Materials and Methods: ECG gated Cardiac MRI was performed with a 1.5-Tesla system (MAGNETOM SYMPHONYModel 2005) using basic cardiac software (Argus viewer) by a phased-array multicoil on 50 subjects who were known cases of Rheumatic valvular heart disease. A chest radiograph and echocardiography were done in all patients before MR examination. Informed consent was taken from all patients. Results: Mitral stenosis either as an isolated valvular abnormality or in combination with other valvular abnormalities constituted the major bulk of Rheumatic valvular heart disease in our study population. The average ejection fraction by ECHO is 64.94±7.11 and by MRI 67.52±7.84. The average mitral valve area by ECHO is 1.79±0.43 cm2 and by MRI 1.82±0.47 cm2 . The average aortic valve area by ECHO is 1.10±0.21 cm2 and by MRI 1.12±0.25 cm2 . The Coefficient of Correlation (r) is 0.82 for ejection fraction, 0.98 for mitral valve area and 0.92 for aortic valve area which means a strong positive association between the results by ECHO and MRI. In all instances, the p-value is <0.00001, suggesting that the test is highly significant. Conclusion: In our study echocardiography was found to be the gold standard for the diagnosis of Rheumatic valvular heart disease and the role of MRI remained only complimentary to Echocardiography. However with advanced cardiac software, more advanced techniques, and faster imaging sequences, MRI may become a valuable procedure for investigation and followup of patients with valvular heart disease.https://jcdr.net/articles/PDF/7405/18059_CE[Ra1]_F(GH)_PF1(Ro_Om)_PFA(AK)_PF2(PAG).pdfnoninvasive imagingstenosisregurgitation |
| spellingShingle | PHANI CHAKRAVARTY MUTNURU SN SINGH JOHN D’ SOUZA LAKSHMI MANASA PERUBHOTLA Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases Journal of Clinical and Diagnostic Research noninvasive imaging stenosis regurgitation |
| title | Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases |
| title_full | Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases |
| title_fullStr | Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases |
| title_full_unstemmed | Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases |
| title_short | Cardiac MR Imaging in the Evaluation of Rheumatic Valvular Heart Diseases |
| title_sort | cardiac mr imaging in the evaluation of rheumatic valvular heart diseases |
| topic | noninvasive imaging stenosis regurgitation |
| url | https://jcdr.net/articles/PDF/7405/18059_CE[Ra1]_F(GH)_PF1(Ro_Om)_PFA(AK)_PF2(PAG).pdf |
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