Abstract

Abstract Multislice breath‐held coronary imaging techniques conventionally lack the coverage of free‐breathing 3D acquisitions but use a considerably shorter acquisition window during the cardiac cycle. This produces images with significantly less motion artifact but a lower signal‐to‐noise ratio (SNR). By using the extra SNR available at 3 T and undersampling k ‐space without introducing significant aliasing artifacts, we were able to acquire high‐resolution fat‐suppressed images of the whole heart in 17 heartbeats (a single breath‐hold). The basic pulse sequence consists of a spectral‐spatial excitation followed by a variable‐density spiral readout. This is combined with real‐time localization and a real‐time prospective shim correction. Images are reconstructed with the use of gridding, and advanced techniques are used to reduce aliasing artifacts. Magn Reson Med, 2006. © 2006 Wiley‐Liss, Inc.

Keywords

UndersamplingAliasingArtifact (error)Shim (computing)Spiral (railway)Computer scienceImage qualityMultisliceArtificial intelligenceMathematicsNuclear magnetic resonancePhysicsMedicineImage (mathematics)

Affiliated Institutions

Related Publications

Publication Info

Year
2006
Type
article
Volume
55
Issue
2
Pages
371-379
Citations
68
Access
Closed

External Links

View on DOI.org

Social Impact

Altmetric
PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

68
OpenAlex

Cite This

Juan M. Santos, Charles H. Cunningham, Michael Lustig et al. (2006). Single breath‐hold whole‐heart MRA using variable‐density spirals at 3t. Magnetic Resonance in Medicine , 55 (2) , 371-379. https://doi.org/10.1002/mrm.20765

Identifiers

DOI
10.1002/mrm.20765