| 摘要 |
PROBLEM TO BE SOLVED: To realize a production method of an ultrasonic contrast medium to enable a contrast photographing of good SNR, am ultrasonic contrast medium, and an ultrasonic photographing method using such an ultrasonic contrast medium. SOLUTION: The production method of an ultrasonic contrast medium is to form bubbles with film consisting of a substance having crosslinking cure property, and irradiate wave energy on these bubbles. This agent is a mixture of microballoons 4 in a liquid 2. These microballoons with film cured by electron beam crosslinking, etc., microballoons loosely aggregated by a binder, and microballoons sealed in oil droplets are used as a contrast medium. |
