Title:
ULTRASONIC IMAGING DEVICE AND INFORMATION PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/102221
Kind Code:
A1
Abstract:
Provided is an ultrasonic imaging device that noninvasively measures the stiffness of the cardiac muscle, which is the heart muscle, or intracardiac pressure, which is the blood pressure inside the heart. The ultrasonic imaging device includes: an ultrasonic probe (2) that transmits and receives ultrasonic waves to and from the heart, which is the target organ inside the body; a signal-processing section (15) that processes reflected echo signals received by the ultrasonic probe; a display section (14) that displays the results of signal processing as an image; and an input section (10) for setting a predetermined point on the image displayed on the display section. The signal-processing section (15) includes: a shape-extracting section (152) that perceives information on the shape of the heart from the reflected echo signals; a natural-frequency detecting section (153) that detects the natural frequency of the heart from the reflected echo signals; and a calculating section (154) that calculates the stiffness of the cardiac muscle or the intracardiac pressure, wherein the calculating section (154) accurately calculates the stiffness of the cardiac muscle from the natural frequency of the heart and calculates the intracardiac pressure from the stiffness of the cardiac muscle that has been calculated.
Inventors:
TANAKA TOMOHIKO (JP)
AZUMA TAKASHI (JP)
TABARU MARIE (JP)
HASHIBA KUNIO (JP)
AZUMA TAKASHI (JP)
TABARU MARIE (JP)
HASHIBA KUNIO (JP)
Application Number:
PCT/JP2011/052116
Publication Date:
August 25, 2011
Filing Date:
February 02, 2011
Export Citation:
Assignee:
HITACHI MEDICAL CORP (JP)
TANAKA TOMOHIKO (JP)
AZUMA TAKASHI (JP)
TABARU MARIE (JP)
HASHIBA KUNIO (JP)
TANAKA TOMOHIKO (JP)
AZUMA TAKASHI (JP)
TABARU MARIE (JP)
HASHIBA KUNIO (JP)
International Classes:
A61B8/00
Foreign References:
| JPH105226A | 1998-01-13 | |||
| JPH105226A | 1998-01-13 |
Other References:
HIROSHI KANAI ET AL.: "Noninvasive Measurement of Spatial Distribution of Small Vibrations in Heart Wall", JOURNAL OF MEDICAL ULTRASONICS, vol. 26, no. 4, April 1999 (1999-04-01), pages 670
H.KANAI ET AL.: "Imaging Spatial Distribution of High-Frequency Small Vibrations on the Heart Wall", PROC. IEEE ULTRASON. SYMP., 1998, vol. 2, 1998, pages 1689 - 1692, XP010331141
MICHIE SATO ET AL.: "Measurement of left ventricle end-diastolic pressure by analysis of small vibration on heart wall", JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN, vol. 52, no. 9, 1996, pages 703 - 710
H.HONDA ET AL.: "Noninvasive measurement of left ventricular myocardial elasticity", AM. J. PHYSIOL., vol. 266, no. 3, March 1994 (1994-03-01), pages 881 - 890
See also references of EP 2537469A4
S. H. ADVANI; Y. C. LEE, J, JOURNAL OF SOUND AND VIBRATION, vol. 12, no. 4, 1970, pages 453 - 463
H. HONDA, AMERICAN JOURNAL OF PHYSIOLOGY - HEART AND CIRCULATORY PHYSIOLOGY, vol. 266, 1994, pages H881 - H890
M. SATO, ELECTRONIC LETTERS, vol. 32, no. 11, 1996, pages 949 - 950
I. MIRSKY; W. W. PARMLEY: "Cardiac Mechanics", 1974
H.KANAI ET AL.: "Imaging Spatial Distribution of High-Frequency Small Vibrations on the Heart Wall", PROC. IEEE ULTRASON. SYMP., 1998, vol. 2, 1998, pages 1689 - 1692, XP010331141
MICHIE SATO ET AL.: "Measurement of left ventricle end-diastolic pressure by analysis of small vibration on heart wall", JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN, vol. 52, no. 9, 1996, pages 703 - 710
H.HONDA ET AL.: "Noninvasive measurement of left ventricular myocardial elasticity", AM. J. PHYSIOL., vol. 266, no. 3, March 1994 (1994-03-01), pages 881 - 890
See also references of EP 2537469A4
S. H. ADVANI; Y. C. LEE, J, JOURNAL OF SOUND AND VIBRATION, vol. 12, no. 4, 1970, pages 453 - 463
H. HONDA, AMERICAN JOURNAL OF PHYSIOLOGY - HEART AND CIRCULATORY PHYSIOLOGY, vol. 266, 1994, pages H881 - H890
M. SATO, ELECTRONIC LETTERS, vol. 32, no. 11, 1996, pages 949 - 950
I. MIRSKY; W. W. PARMLEY: "Cardiac Mechanics", 1974
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
Polaire Intellectual Property Corporation (JP)
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