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Dynamic imaging of the fetal heart using metric optimized gating
Magnetic resonance in medicine, 2013-12, Vol.70 (6), p.1598-1607
Roy, Christopher W.
Seed, Mike
van Amerom, Joshua F. P.
Al Nafisi, Bahiyah
Grosse-Wortmann, Lars
Yoo, Shi-Joon
Macgowan, Christopher K.
2013
Volltextzugriff (PDF)
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Autor(en) / Beteiligte
Roy, Christopher W.
Seed, Mike
van Amerom, Joshua F. P.
Al Nafisi, Bahiyah
Grosse-Wortmann, Lars
Yoo, Shi-Joon
Macgowan, Christopher K.
Titel
Dynamic imaging of the fetal heart using metric optimized gating
Ist Teil von
Magnetic resonance in medicine, 2013-12, Vol.70 (6), p.1598-1607
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2013
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
Purpose Advances in fetal cardiovascular magnetic resonance imaging have been limited by the absence of a reliable cardiac gating signal. The purpose of this work was to develop and validate metric‐optimized gating (MOG) for cine imaging of the fetal heart. Theory and Methods Cine MR and electrocardiogram data were acquired in healthy adult volunteers for validation of the MOG method. Comparison of MOG and electrocardiogram reconstructions was performed based on the image quality for each method, and the difference between MOG and electrocardiogram trigger times. Fetal images were also acquired, their quality evaluated by experienced radiologists, and the theoretical error in the MOG trigger times were calculated. Results Excellent agreement between electrocardiogram and MOG reconstructions was observed. The experimental errors in adult MOG trigger times for all five volunteers were ± (7, 25, 17, 8, and 13) ms. Fetal images captured normal and diseased cardiac dynamics. Conclusion MOG for cine imaging of the fetal myocardium was developed and validated in adults. Using MOG, the first gated MR images of the human fetal myocardium were obtained. Small moving structures were visualized during radial contraction, thus capturing normal fetal cardiac wall motion and permitting assessment of cardiac function. Magn Reson Med 70:1598–1607, 2013. © 2013 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0740-3194
eISSN: 1522-2594
DOI: 10.1002/mrm.24614
Titel-ID: cdi_proquest_journals_1459165417
Format
–
Schlagworte
Adult
,
Algorithms
,
Cardiac-Gated Imaging Techniques - methods
,
Female
,
Fetal Heart - anatomy & histology
,
fetal magnetic resonance imaging
,
gating
,
Humans
,
Image Enhancement - methods
,
Image Interpretation, Computer-Assisted - methods
,
image metric
,
Magnetic Resonance Imaging, Cine - methods
,
Male
,
post-processing
,
Prenatal Diagnosis - methods
,
Reproducibility of Results
,
Sensitivity and Specificity
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