A fast rotating scanning unit for real-time three-dimensional echo data acquisition.
Ultrasound Med Biol
; 26(5): 863-9, 2000 Jun.
Article
de En
| MEDLINE
| ID: mdl-10942833
ABSTRACT
Most three-dimensional (3-D) echocardiography (3-DE) systems today are based on off-line methods where a large number of cross-sectional 2-D scans have to be acquired sequentially before a 3-D image can be reconstructed. Because acquisition is done step-by-step based on ECG triggering plus respiratory gating, this introduces motion artefacts and takes significant acquisition time. Another 3-D approach is based on 2-D transducers and parallel beam-forming. Such a system is very complex. In this manuscript, a fast continuously-rotating scanning unit, based on a 64-element phased-array transducer, is described. Typical rotation speed of the 3-D unit is 8 rotations per s. Therefore, 16 3-D volume datasets can be acquired per s in real-time. The first clinical examples as acquired with this probe are presented.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Traitement d'image par ordinateur
/
Échocardiographie
/
Ventricules cardiaques
Limites:
Humans
Langue:
En
Journal:
Ultrasound Med Biol
Année:
2000
Type de document:
Article
Pays d'affiliation:
Pays-Bas