Free breathing high temporal resolution time resolved contrast enhanced MRA (4D MRA) at high heart rates using keyhole S

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Free breathing high temporal resolution time resolved contrast enhanced MRA (4D MRA) at high heart rates using keyhole SENSE CENTRA in congenital heart disease Rajesh Krishnamurthy*, Timothy Slesnick, Lorna Browne, Michael D Taylor, Arnie Nutting and Raja Muthupillai Address: Texas Children's Hospital, Houston, TX, USA * Corresponding author

from 13th Annual SCMR Scientific Sessions Phoenix, AZ, USA. 21-24 January 2010 Published: 21 January 2010 Journal of Cardiovascular Magnetic Resonance 2010, 12(Suppl 1):O31

doi:10.1186/1532-429X-12-S1-O31

Abstracts of the 13th Annual SCMR Scientific Sessions - 2010

Meeting abstracts - A single PDF containing all abstracts in this Supplement is available here. http://www.biomedcentral.com/content/files/pdf/1532-429X-11-S1-info

This abstract is available from: http://jcmr-online.com/content/12/S1/O31 © 2010 Krishnamurthy et al; licensee BioMed Central Ltd.

Introduction In children with CHD, achieving adequate separation of right-sided, left-sided, and venous structures using conventional CEMRA is hampered by high heart rates and the fast circulation. The need for visualizing small structures prolongs the acquisition time, and necessitates intubation and breath-holding to reduce motion induced blurring.

Purpose To investigate the feasibility of a free-breathing time resolved CEMRA (trCEMRA) acquisition that is suitable for children with high heart rates using a keyhole approach combined with parallel imaging.

Methods 18 patients age range 0-10 years (12/18 were