| Comparison of accuracy of axial slices versus short-axis slices for measuring ventricular volumes by cardiac magnetic resonance in patients with corrected tetralogy of fallot. | |
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MedLine Citation:
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PMID: 19539090 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The best method to measure right (RV) and left (LV) ventricle volumes of patients with corrected tetralogy of Fallot is considered cardiac magnetic resonance (CMR). However, to date, no standard protocol to measure RV volumes by CMR exists. RV volumes can be measured from a stack of short-axis slices or a stack of axial slices through the patient's chest. Therefore, the aim of this study was to determine whether short-axis or axial slices are more reliable for routine measurement of RV and LV volumes in patients with corrected tetralogy of Fallot. We studied consecutive patients with corrected tetralogy of Fallot (n = 46) undergoing routine CMR. The end-diastolic and end-systolic RV and LV volumes were measured by 2 investigators unaware of the results of the other measurements using short-axis and axial slices, and the inter- and intraobserver variances were compared. The design of the study was based on the Standards for Reporting of Diagnostic Accuracy. Interobserver variance was significantly smaller using axial slices than using short-axis slices for the RV end-systolic volumes (127.9%(2) vs 315.1%(2); p = 0.003), LV end-diastolic volumes (11.4%(2) vs 36.1%(2); p <0.001), and LV end-systolic volumes (31.9%(2) vs 176.1%(2); p <0.001). Intraobserver variance was significantly smaller using axial slices than using short-axis slices for the RV end-diastolic volumes (26.7%(2) vs 51.1%(2); p = 0.032), LV end-diastolic volumes (11.0%(2) vs 23.5%(2); p = 0.012), and LV end-systolic volumes (34.3%(2) vs 86.1%(2); p = 0.003). In conclusion, axial slices are more reproducible than short-axis slices for measuring ventricular volumes of patients with corrected tetralogy of Fallot by CMR. |
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Authors:
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Sohrab Fratz; Annika Schuhbaeck; Christine Buchner; Raymonde Busch; Christian Meierhofer; Stefan Martinoff; John Hess; Heiko Stern |
Publication Detail:
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Type: Comparative Study; Journal Article Date: 2009-05-04 |
Journal Detail:
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Title: The American journal of cardiology Volume: 103 ISSN: 1879-1913 ISO Abbreviation: Am. J. Cardiol. Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2009-06-22 Completed Date: 2009-07-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: United States |
Other Details:
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Languages: eng Pagination: 1764-9 Citation Subset: AIM; IM |
Affiliation:
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Department of Paediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München an der Technischen Universität München, Munich, Germany. fratz@dhm.mhn.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Cardiac Surgical Procedures / methods* Cardiac Volume / physiology* Child Female Follow-Up Studies Heart Ventricles / pathology*, physiopathology Humans Magnetic Resonance Imaging / methods* Male Middle Aged Reproducibility of Results Retrospective Studies Tetralogy of Fallot / diagnosis*, physiopathology, surgery Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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