Title:
IMPROVEMENT IN OR REGARDING ULTRASONIC PICTURE FORMATION
Document Type and Number:
Japanese Patent JPH09108215
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To visuallize tissue or blood containing contrasting agent by generating ultrasonic continuous image of tissue where vasis run, calculating a correlation value on the parameter of continuous image. identifying the region where the correlation value changes over a specified level, and performing display of the region. SOLUTION: 2ml of contrast agent of micro particle form containing gas is injected to e.g. a dog intravascularly. A converter is placed above the position of kidney and an ultrasonic scanner is actuated at the frequency of 5MHz. The effect of contrast is recorded after the delay of 30sec. and B-mode image is recorded at the interval of 0.5sec. Image processing is made by analog-digital conversion and calculation is performed by use of the value 5 of parameter. For indicating perfusion a value lower than 0.7 is used as a correlation value. Accordingly the part of kidney having perfusion is identified early as a clear part in the region of skin while late in the region of medulla.
Inventors:
YONIYUU OESUTENSEN
MOOTEN EERIKUSEN
RARUSU HOFU
SHIGUMUN FURISUTAA
NIIRUSU SUPONHEAIMU
KUNUUTO DEIRUSUTAA
MOOTEN EERIKUSEN
RARUSU HOFU
SHIGUMUN FURISUTAA
NIIRUSU SUPONHEAIMU
KUNUUTO DEIRUSUTAA
Application Number:
JP32665895A
Publication Date:
April 28, 1997
Filing Date:
December 15, 1995
Export Citation:
Assignee:
NYCOMED IMAGING AS
International Classes:
A61B8/00; A61K49/22; G01S7/52; A61B8/06; G01S15/52; G06T1/00; (IPC1-7): A61B8/00; G06T1/00
Attorney, Agent or Firm:
Chika Takagi (2 outside)