| Quantitative three dimensional echocardiography in patients with pulmonary hypertension and compressed left ventricles: comparison with cross sectional echocardiography and magnetic resonance imaging. | |
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MedLine Citation:
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PMID: 8983683 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate the accuracy of quantitative three dimensional echocardiography in patients with deformed left ventricles. DESIGN: Three dimensional and cross sectional echocardiographic estimates of left ventricular volume and ejection fraction were prospectively compared to those obtained from magnetic resonance imaging. SETTING: Echocardiography laboratory of a university hospital. PATIENTS: 26 patients (9 months to 42 years, median age 11 years) with pulmonary hypertension and fixed reversal of normal interventricular septal curvature. MAIN OUTCOME MEASURES: Left ventricular end diastolic and end systolic volumes and ejection fraction. RESULTS: Three dimensional echocardiographic comparison to magnetic resonance imaging (MRI) yielded r values of 0.94 and 0.87 with a bias of -6.9 (SD 6.9) ml and -16 (11.2) ml for systolic and diastolic volumes respectively. Inter-observer variability was minimal (8.3% and 7.6% respectively). Cross sectional echocardiography gave correlation coefficients of 0.62 and 0.80 and bias of 3.1 (14.1) ml and 16.3 (18.3) ml for systolic and diastolic volumes respectively. Ejection fraction by three dimensional echocardiography also had closer agreement with MRI (bias = 1.1 (7.7)%) than cross sectional echocardiography (bias = 4.4 (13.9)%). CONCLUSIONS: Three dimensional echocardiography provides reliable estimates of left ventricular volumes and ejection fraction, comparable to magnetic resonance imaging in pulmonary hypertension patients with compressed ventricular geometry. Because it eliminates the need for geometric assumptions it shows closer agreement with magnetic resonance imaging in that setting than cross sectional echocardiography. |
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Authors:
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H D Apfel; Z Shen; A S Gopal; V Vangi; D Solowiejczyk; K Altmann; R J Barst; L M Boxt; L D Allan; D L King |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Heart (British Cardiac Society) Volume: 76 ISSN: 1355-6037 ISO Abbreviation: Heart Publication Date: 1996 Oct |
Date Detail:
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Created Date: 1997-01-08 Completed Date: 1997-01-08 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 9602087 Medline TA: Heart Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 350-4 Citation Subset: AIM; IM |
Affiliation:
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Department of Pediatrics, Babies and Children's Hospital, New York, NY 10032, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Child Child, Preschool Echocardiography Heart Ventricles / pathology, ultrasonography* Humans Hypertension, Pulmonary / pathology, ultrasonography* Infant Magnetic Resonance Imaging |
| Comments/Corrections | |
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