Work

Improved image reconstruction incorporating non-rigid motion correction for cardiac MRI using BLADE acquisition

Year: 2009

Type: article

Abstract: The application of the BLADE sequence for dark blood T2-weighted cardiac MRI has the potential for increasing the spatial resolution thereby improving the detailed depiction of morphology [ 1 ]. While the BLADE sequence using periodically rotating overlapping parallel lines (PROPELLER) [ 2 ] inherently provides a degree of motion tolerance, significant respiratory motion may result in image artifacts. Rigid body motion correction applied to PROPELLER MRI [ 2 ] is well suited to applications such brain imaging but is problematic in cardiac MR where the motion is not rigid. Non-rigid image registration has been successfully applied for motion corrected averaging in cardiac MR [ 3 ]. In the present study, non-rigid motion correction was applied to individual BLADE images prior to combination as a high resolution image, to migitate respiratory motion artifacts that arise despite the use of a navigator.

Source: Journal of Cardiovascular Magnetic Resonance

DOI: 10.1186/1532-429x-11-s1-p227

Authors: Peter Kellman, Magalie Viallon, Christophe Chefd'hotel, Alto Stemmer, Pierre Croisille

Institutions: National Institutes of Health, University Hospital of Geneva, Siemens (United States), Hôpital Louis Pradel

Language: English

Topic: Advanced MRI Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $3,000