Related Experiment Videos
Constrictive pericarditis and restrictive cardiomyopathy: evaluation with MR imaging.
T Masui1, S Finck, C B Higgins
1Department of Radiology, University of California, San Francisco 94143.
Radiology
|February 1, 1992
Summary
Magnetic resonance (MR) imaging accurately diagnoses constrictive pericarditis, distinguishing it from restrictive cardiomyopathy. This noninvasive technique identifies pericardial thickening, a key indicator of constrictive pericarditis.
Area of Science:
- Cardiology
- Radiology
- Medical Imaging
Background:
- Constrictive pericarditis and restrictive cardiomyopathy present similar clinical signs.
- Accurate differentiation is crucial for appropriate patient management.
- Noninvasive diagnostic tools are needed to distinguish these conditions.
Purpose of the Study:
- To evaluate the accuracy of spin-echo magnetic resonance (MR) imaging for diagnosing constrictive pericarditis.
- To compare the morphologic features of constrictive pericarditis with restrictive cardiomyopathy using MR imaging.
Main Methods:
- Electrocardiographically gated transverse spin-echo MR imaging was performed on 29 patients with suspected constrictive pericarditis.
- Diagnosis was confirmed by surgery and/or catheterization in 17 patients.
- Morphologic features and pericardial thickness were analyzed.
Main Results:
- MR imaging demonstrated 88% sensitivity, 100% specificity, and 93% accuracy for constrictive pericarditis.
- Thickened pericardium was present in 88% of confirmed constrictive pericarditis cases, absent in restrictive cardiomyopathy.
- Indirect findings of impaired right ventricular diastolic filling were noted in both conditions.
Conclusions:
- Spin-echo MR imaging is a definitive, noninvasive tool for diagnosing constrictive pericarditis.
- MR imaging effectively differentiates constrictive pericarditis from restrictive cardiomyopathy based on pericardial thickness.