The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1988
Filed:
Dec. 22, 1986
Kouroku Namekawa, Tokyo, JP;
Aloka Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an ultrasonic blood flow imaging forming apparatus in which ultrasonic beams are transmitted into and reflected by a living body to color-display the distribution of velocity in a moving member and the properties of the living body's tissue on a CRT screen in the two-dimensional manner. The ultrasonic blood flow imaging apparatus includes a color processing section for forming an image in accordance with vector signals, the color processing section including a color processor responsive to vector angles in the vector signals to change the hue, and a brightness processor responsive to amplitude of the vector signals to change the brightness of the hue. The apparatus also includes a complementary color mixing processor responsive to the third data of the living body obtained from the ultrasonic received signals to mix the hue which is outputted from the color processor with its complementary color. For example, when the motion of the moving reflective member is displayed, the directions of the moving reflective member are indicated with different hues corresponding to vector angles in the vector signals while the velocities of the moving reflective member are represented with different brightnesses corresponding to amplitude of the vector signals. Furthermore, the third data including velocity deviations and others are displayed with a color saturation obtained by mixing the hue determined by the corresponding vector angle with its complementary color. Therefore, various states of the moving reflective member, that is, the velocity, brightness and direction can easily be observed with changes of the hue. Furthermore, the variance of the velocity represented by the velocity deviations can be observed with changes of the color saturation.