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Pubmed for Handhelds

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  • Title: Single breath-hold extended free-breathing navigator-gated three-dimensional coronary MRA.
    Author: Huber ME, Oelhafen ME, Kozerke S, Weber OM, Boesiger P.
    Journal: J Magn Reson Imaging; 2002 Feb; 15(2):210-4. PubMed ID: 11836779.
    Abstract:
    PURPOSE: To acquire the center of k-space while extending three-dimensional free-breathing navigator-gated coronary magnetic resonance (MR) angiography by an initial single breath-hold. MATERIALS AND METHODS: This approach was successfully applied in eight healthy adult subjects. Resulting images were compared with conventionally acquired free-breathing navigator-gated MR angiograms. RESULTS: The acquisition of k-space center during the single breath-hold resulted in a 26% increase (P < 0.05) of signal-to-noise ratio. Visible length of the right coronary artery, as well as contrast-to-noise ratio between the blood and the myocardial muscle, were identical. CONCLUSION: The breath-hold extension was shown to be a valuable technique that may be combined with first-pass contrast-enhanced MR imaging.
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