Title:
超音波診断装置
Document Type and Number:
Japanese Patent JP4574551
Kind Code:
B2
Abstract:
An ultrasonic diagnostic apparatus includes a transmission unit that transmits at least one ultrasonic pulse from a surface of a skin of a subject toward a blood vessel (21) thereof, a reception unit (3) that receives an ultrasonic echo reflected by the blood vessel and converts the same into an electric signal to obtain a signal of the ultrasonic echo along a depth direction from the surface of the skin, a movement detection unit (5) that analyzes a phase of the ultrasonic echo signal in a direction traversing the blood vessel so as to calculate a movement amount in each of a plurality of parts included in a blood vessel wall constituting the blood vessel and a vicinity of the blood vessel wall, and a boundary detection unit (7) that detects a boundary position between the blood vessel wall and a blood flow region (22) in a lumen of the blood vessel through which blood flows based on a variation in the calculated movement amount in each part. Instability occurring when a brightness signal in image data is used can be eliminated, so that a state of a blood vessel, such as an IMT value, can be measured correctly using ultrasonic waves.
Inventors:
Yoshinobu Watanabe
Anti-china Yunao
Takao Suzuki
Nao Hagiwara
Kazuhiro Sunagawa
Anti-china Yunao
Takao Suzuki
Nao Hagiwara
Kazuhiro Sunagawa
Application Number:
JP2005507334A
Publication Date:
November 04, 2010
Filing Date:
June 24, 2004
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
A61B8/08; A61B
Domestic Patent References:
| JP2001137241A | 2001-05-22 |
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners