| MRI planimetry for diagnosis and follow-up of valve area in mitral stenosis treated with valvuloplasty. | |
| | |
MedLine Citation:
|
PMID: 16862504 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: We sought to determine whether noninvasive planimetry by magnetic resonance imaging (MRI) is suitably sensitive and reliable for visualizing the mitral valve area (MVA) and for detecting increases in the MVA after percutaneous balloon mitral valvuloplasty (PBMV). MATERIALS AND METHODS: In 8 patients with mitral valve stenosis, planimetry of the MVA was performed before and after PBMV with a 1.5 T MR scanner using a breath-hold balanced gradient echo sequence (True FISP). The data was compared to the echocardiographically determined MVA (ECHO-MVA) as well as to the invasively calculated MVA by the Gorlin formula at catheterization (CATH-MVA). RESULTS: PBMV was associated with an increase of 0.79 +/- 0.30 cm (2) in the MVA (Delta MRI-MVA). The correlation between Delta MRI-MVA and Delta CATH-MVA was 0.92 (p < 0.03) and that between Delta MRI-MVA and Delta ECHO-MVA was 0.90 (p < 0.04). The overall correlation between MRI-MVA and CATH-MVA was 0.95 (p < 0.0001) and that between MRI-MVA and ECHO-MVA was 0.98 (p < 0.0001). MRI-MVA slightly overestimated CATH-MVA by 8.0 % (1.64 +/- 0.45 vs. 1.51 +/- 0.49 cm (2), p < 0.01) and ECHO-MVA by 1.8 % (1.64 +/- 0.45 vs. 1.61 +/- 0.43 cm (2), n. s.). CONCLUSION: Magnetic resonance planimetry of the mitral valve orifice is a sensitive and reliable method for the noninvasive quantification of mitral stenosis and visualization of small relative changes in the MVA. This new method is therefore capable of diagnosing as well as following the course of mitral stenosis. It must be taken into consideration that planimetry by MRI slightly overestimates the MVA as compared to cardiac catheterization. |
| | |
Authors:
|
B Djavidani; K Debl; S Buchner; C Lipke; W Nitz; S Feuerbach; G Riegger; A Luchner |
Related Documents
:
|
8077074 - Assessment of tricuspid regurgitation by doppler color flow imaging: angiographic corre... 2097304 - Quantification of regurgitant lesions by mri. 2191714 - Colour doppler imaging in the demonstration of an orbital varix. 2008004 - Duplex ultrasonography for persistent gestational trophoblastic tumor. 11274534 - Automated polyp detection at ct colonography: feasibility assessment in a human populat... 17234544 - A comparative study of cone-beam computed tomography and conventional panoramic radiogr... |
Publication Detail:
|
Type: Clinical Trial; Journal Article |
Journal Detail:
|
Title: RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin Volume: 178 ISSN: 1438-9029 ISO Abbreviation: Rofo Publication Date: 2006 Aug |
Date Detail:
|
Created Date: 2006-07-24 Completed Date: 2006-09-12 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7507497 Medline TA: Rofo Country: Germany |
Other Details:
|
Languages: eng Pagination: 781-6 Citation Subset: IM |
Affiliation:
|
Institut für Röntgendiagnostik, Universitätsklinikum Regensburg, Regensburg. behrus.djavidani@klinik.uni-regensburg.de |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Anatomy, Cross-Sectional
/
methods* Balloon Dilatation / methods* Female Follow-Up Studies Humans Image Interpretation, Computer-Assisted / methods* Magnetic Resonance Imaging / methods* Male Middle Aged Mitral Valve / pathology* Mitral Valve Stenosis / diagnosis*, therapy* Prognosis Reproducibility of Results Sensitivity and Specificity Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Contrast-enhanced MR and MSCT for the assessment of myocardial viability
Next Document: Signal loss in magnetic resonance imaging caused by intraoral anchored dental magnetic materials