High-Frame-Rate Deformation Imaging in Two Dimensions Using Continuous Speckle-Feature Tracking.
The study describes a novel algorithm for deriving myocardial strain from an entire cardiac cycle using high-frame-rate ultrasound images. Validation of the tracking algorithm was conducted in vitro prior to the application to patient images. High-frame-rate ultrasound images were acquired in vivo from 10 patients, and strain curves were derived in six myocardial regions around the left ventricle from the apical four-chamber view. Strain curves derived from high-frame-rate images had a higher frequency content than those derived using conventional methods, reflecting improved temporal sampling.
Department of Health Science and Technology, Aalborg University, Aalborg, Denmark. Electronic address: mvan@hst.aau.dk.
Martin V
MV
Andersen
Duke Biomedical Engineering Department, Duke University, Durham, North Carolina, USA.
Cooper
C
Moore
Duke Department of Medicine, Duke University Hospital, Durham, North Carolina, USA.
Kristine
K
Arges
Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Peter
P
Søgaard
Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.
Lasse R
LR
Østergaard
Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.
Samuel E
SE
Schmidt
Duke Department of Medicine, Duke University Hospital, Durham, North Carolina, USA.
Joseph
J
Kisslo
Duke Biomedical Engineering Department, Duke University, Durham, North Carolina, USA.
Olaf T
OT
Von Ramm
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D004452:Echocardiography / Q000379:methods*; D005260:Female; D006331:Heart Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology*; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D014463:Ultrasonography / Q000379:methods
Algorithm; Deformation imaging; Echocardiology; Feature; Feature tracking; High frame rate; Speckle; Speckle tracking; Strain; Ultrasound