Paper Info
Title
Temporal diffeomorphic free form deformation (TDFFD) applied to motion and deformation quantification of tagged MRI sequences
Abstract
This paper presents strain quantification results obtained from the Tagged Magnetic Resonance Imaging (TMRI) sequences acquired for the 1st cardiac Motion Analysis Challenge (cMAC). We applied the Temporal Diffeomorphic Free Form Deformation (TDFFD) algorithm to the phantom and the 15 healthy volunteers of the cMAC database. The TDFFD was modified in two ways. First, we modified the similarity metric to incorporate frame to frame intensity differences. Second, on volunteer sequences, we performed the tracking backward in time since the first frames did not show the contrast between blood and myocardium, making these frames poor choices of reference. On the phantom, we propagated a grid adjusted to tag lines to all frames for visually assessing the influence of the different algorithmic parameters. The weight between the two metric terms appeared to be a critical parameter for making a compromise between good tag tracking while preventing drifts and avoiding tag jumps. For each volunteer, a volumetric mesh was defined in the Steady-State Free Precession (SSFP) image, at the closest cardiac time from the last frame of the tagging sequence. Uniform strain patterns were observed over all myocardial segments, as physiologically expected.
Year
DOI
Venue
2011
10.1007/978-3-642-28326-0_7
STACOM
Keywords
Field
DocType
mri sequence,tag jump,closest cardiac time,temporal diffeomorphic free form,cmac database,steady-state free precession,last frame,frames poor choice,good tag tracking,healthy volunteer,cardiac motion analysis challenge,deformation quantification
Precession,Computer vision,Imaging phantom,Free-form deformation,Steady-state free precession imaging,Artificial intelligence,Critical parameter,Deformation (mechanics),Cardiac motion,Diffeomorphism,Mathematics
Conference
Citations 
PageRank 
References 
11
1.06
1
Authors
7
Name
Order
Citations
PageRank
M De Craene141141.85
C Tobón-Gomez217714.41
Constantine Butakoff333632.52
N Duchateau419920.53
G Piella536643.86
Kawal S. Rhode675978.72
Alejandro F. Frangi74333309.21