Ultrasonic diagnostic apparatus

Details Ultrasonic diagnostic apparatus Ultrasonic diagnostic apparatus

1994-01-13

1995-05-23

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

054172195

ABSTRACT:
In an ultrasonic imaging apparatus, ultrasound beams are diffused in the slice direction perpendicular to the scanning direction to thereby scan a three-dimensional region of a subject under examination with wide ultrasound beams. Thus, echoes are detected accumulated in the slice direction. Echoes from the surface of a region of interest, such as a fetus, are stronger than echoes from within the region of interest. As a consequence, an ultrasonic image is produced which approximates a surface image. The amount of data required to produce an ultrasonic image, the ultrasonic beam scanning procedure, and the signal processing system are the same as before, which permits real-time operation. A conventional ultrasonic imaging apparatus can be used without modification except a probe adapter for diffusing ultrasound beams in the slice direction.

REFERENCES:
patent: 4867169 (1989-09-01), Machida et al.
patent: 4972838 (1990-11-01), Yamazaki
patent: 5127410 (1992-07-01), King et al.
patent: 5174294 (1992-12-01), Saito et al.
patent: 5305756 (1994-04-01), Entrekin et al.
"Real-time 3-D ultrasound imaging with a 1-D fan beam transducer array", Rob Entrekin, et al., SPIE vol. 1733:264-272 1992).

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