Time-varying, 3-D echocardiography using a fast-rotating probe.
A fast continuous rotating ultrasound scan-head transducer was used to perform three-dimensional (3-D) echocardiography with 2-D images acquired during a single cardiac cycle. The 3-D images were reconstructed by interpolating 2-D data acquired with the probe. Two experiments were carried out to validate the image reconstructions. A dynamic cardiac phantom was used as a known reference to compare the minimal and maximal volumes estimated manually on the reconstructed 3-D images. The left ventricle (LV) volume of 30 healthy volunteers also were estimated using a semiautomatic ellipse approach and compared to measurements obtained with standard 2-D examination. Results showed a good agreement between 3-D and reference measurements.
Blancher
Jérôme
J
Léger
Christophe
C
Nguyen
Long Dang
LD
D000465:Algorithms; D019560:Echocardiography, Three-Dimensional / Q000295:instrumentation* / Q000379:methods*; D019544:Equipment Failure Analysis; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods*; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012399:Rotation; D012680:Sensitivity and Specificity; D013318:Stroke Volume; D013997:Time Factors; D014159:Transducers