Title:
ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD FOR CONTROLLING ULTRASONIC DIAGNOSTIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2005/112774
Kind Code:
A1
Abstract:
An ultrasonic diagnostic apparatus comprises a transmission section (14) for driving an ultrasonic probe (13) used for transmitting an ultrasonic transmission wave toward a body tissue of an organism, a reception section (15) for receiving an ultrasonic reflected wave produced when the ultrasonic transmission wave is reflected at the body tissue by means of the ultrasonic probe, a phase detecting section (16) for phase-detecting the ultrasonic reflected wave, and a calculating section (19) for calculating the position displacements of positions to be measured of the organism tissue from the signal generated by the phase detection and the maximum thickness variation and/or elastic characteristic between two points selected from the positions to be measured from the position displacements. The calculating section (19) calculates the maximum and minimum values of the thickness or thickness variation between two points from the position displacements of the two points determined for a partial period of one heart cycle and calculates the maximum thickness variation and/or elastic characteristic from the difference between the maximum and minimum values.
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Inventors:
KATO MAKOTO
SUNAGAWA KAZUHIRO
SUNAGAWA KAZUHIRO
Application Number:
PCT/JP2005/009162
Publication Date:
December 01, 2005
Filing Date:
May 19, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
KATO MAKOTO
SUNAGAWA KAZUHIRO
KATO MAKOTO
SUNAGAWA KAZUHIRO
International Classes:
A61B5/107; A61B8/08; (IPC1-7): A61B8/08
Foreign References:
| JP2001292995A | 2001-10-23 | |||
| JP2001218768A | 2001-08-14 | |||
| JP2000333955A | 2000-12-05 | |||
| EP1421905A1 | 2004-05-26 | |||
| EP1273267A2 | 2003-01-08 |
Other References:
See also references of EP 1688094A4
HOEKS, A.P.G ET AL.: "Assessment of the Distensibility of Superficial Arteries", ULTRASOUND IN MEDICINE AND BIOLOGY, vol. 16, no. 2, 1 January 1990 (1990-01-01), pages 121 - 128, XP023259461, DOI: doi:10.1016/0301-5629(90)90139-4
HOEKS, A.P.G ET AL.: "Assessment of the Distensibility of Superficial Arteries", ULTRASOUND IN MEDICINE AND BIOLOGY, vol. 16, no. 2, 1 January 1990 (1990-01-01), pages 121 - 128, XP023259461, DOI: doi:10.1016/0301-5629(90)90139-4
Attorney, Agent or Firm:
Okuda, Seiji (10th Floor Osaka Securities Exchange Bldg.,
8-16, Kitahama 1-chome, Chuo-k, Osaka-shi Osaka, JP)
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