CMR in pediatric patients with congenital heart disease: comparison at 1.5T and at 3.0T
- PDF / 85,132 Bytes
- 2 Pages / 595.28 x 793.7 pts Page_size
- 42 Downloads / 147 Views
POSTER PRESENTATION
Open Access
CMR in pediatric patients with congenital heart disease: comparison at 1.5T and at 3.0T Kim-Lien Nguyen1,2*, Sarah Khan3, John Moriarty3, Kiyarash Mohajer3, Pierangelo Renella3, Gary Satou3, Ihab Ayad3, Swati Patel3, Ines Boechat3, J Paul Finn3 From 15th Annual SCMR Scientific Sessions Orlando, FL, USA. 2-5 February 2012 Background Despite the theoretical advantages of higher field strength, widespread adoption of CMR at 3.0T has been slow. To the best of our knowledge, there have been no published reports on the use of 3.0T for imaging in pediatric congenital heart disease (CHD). We sought to assess the feasibility of CMR in pediatric patients with CHD at 3.0T and to compare the technical and diagnostic performance with an age-matched and clinically comparable control group at 1.5T. Methods Forty-six pediatric patients with suspected or known CHD were referred for clinical CMR evaluation. Twenty-three underwent imaging at 1.5T (age 1 day to 7.8 years, mean 28.7±33 months) and 23 underwent imaging at 3.0T (age 3 days to 8 years, mean 47.8±31.4 months). SSFP cine imaging, time-resolved magnetic resonance angiography (TR-MRA), and high resolution contrast-enhanced MRA (CE-MRA) were performed routinely. Two readers independently evaluated the data sets for overall image quality, thoraco-abdominal vessel and cardiac chamber definition, and presence of artefacts. SNR and CNR from both data sets were calculated. Results 95% of SSFP cine images at 3T were rated as good or excellent image quality with 73% having mild and 24% having moderate artefacts (k=0.07). 100% of Arterial and venous phase CE-MRA images were considered good or excellent quality (k=0.18, k=0.23 respectively). Cardiac chamber definition was considered good or excellent in 1 Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA Full list of author information is available at the end of the article
95% of arterial and venous phase CE-MRA images (k=0.08). 100% of Arterial and venous phase CE-MRA images showed good or excellent definition of the thoraco-abdominal vessels (k=0.08). For SSFP cine images, the SNR were 45.0±22.3 and 19.0±6.3 (P
Data Loading...
