Single-breath-hold 3-D CINE imaging of the left ventricle using Cartesian sampling.
MAGMA
; 31(1): 19-31, 2018 Feb.
Article
in En
| MEDLINE
| ID: mdl-28550650
ABSTRACT
OBJECTIVES:
Our objectives were to evaluate a single-breath-hold approach for Cartesian 3-D CINE imaging of the left ventricle with a nearly isotropic resolution of [Formula see text] and a breath-hold duration of [Formula see text]19 s against a standard stack of 2-D CINE slices acquired in multiple breath-holds. Validation is performed with data sets from ten healthy volunteers. MATERIALS ANDMETHODS:
A Cartesian sampling pattern based on the spiral phyllotaxis and a compressed sensing reconstruction method are proposed to allow 3-D CINE imaging with high acceleration factors. The fully integrated reconstruction uses multiple graphics processing units to speed up the reconstruction. The 2-D CINE and 3-D CINE are compared based on ventricular function parameters, contrast-to-noise ratio and edge sharpness measurements.RESULTS:
Visual comparisons of corresponding short-axis slices of 2-D and 3-D CINE show an excellent match, while 3-D CINE also allows reformatting to other orientations. Ventricular function parameters do not significantly differ from values based on 2-D CINE imaging. Reconstruction times are below 4 min.CONCLUSION:
We demonstrate single-breath-hold 3-D CINE imaging in volunteers and three example patient cases, which features fast reconstruction and allows reformatting to arbitrary orientations.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Magnetic Resonance Imaging, Cine
/
Cardiac Imaging Techniques
/
Heart Ventricles
Type of study:
Evaluation_studies
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
MAGMA
Journal subject:
DIAGNOSTICO POR IMAGEM
Year:
2018
Type:
Article
Affiliation country:
Germany