| Cardiac MRI of the fetal heart using a novel triggering method: Initial results in an animal model. | |
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MedLine Citation:
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PMID: 22246623 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: To investigate MRI of the fetal heart by way of a novel triggering method with the use of an MR-compatible cardiotocography (CTG) in an animal model. MATERIALS AND METHODS: Fetal cardiac MRI was performed on four pregnant ewes on a 1.5 Tesla (T) MR system. A CTG was rendered MR compatible and its signal was used for the triggering of the fetal heart to perform cardiac cine MRI of the fetal heart with maternal free-breathing with cine steady-state free precession. The left ventricular volume and function were measured from the short-axis (view). The image quality of anatomical structures was assessed. RESULTS: All cardiac valves and the foramen ovale could be visualized. Myocardial contraction was depicted in cine sequences. The average blood volume at the end systole was 1.7 mL (SD ± 0.12). The average volume at the end diastole was 4.6 mL (± 0.4); thus the average stroke volumes of the left ventricle were 2.87 mL (± 0.31) with ejection fractions of 60.53% (± 4.17). CONCLUSION: The newly developed MR compatible CTG could be used as a tool for cardiac triggering method of the fetal heart. This novel device might help fetal cardiac MRI technology in the future. J. Magn. Reson. Imaging 2012;. © 2012 Wiley Periodicals, Inc. |
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Authors:
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Jin Yamamura; Inga Kopp; Michael Frisch; Roland Fischer; Klaus Valett; Kurt Hecher; Gerhard Adam; Ulrike Wedegärtner |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-13 |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: - ISSN: 1522-2586 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Wiley Periodicals, Inc. |
Affiliation:
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Department of Diagnostic and Interventional Radiolog, Oakland, California, USA. j.yamamura@uke.uni-hamburg.de. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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