Title:
PUNCTURE NAVIGATION CALIBRATION METHOD AND SYSTEM FOR DSA ROADMAP TECHNOLOGY
Document Type and Number:
WIPO Patent Application WO/2023/236571
Kind Code:
A1
Abstract:
The present invention relates to the technical field of image processing. Disclosed are a puncture navigation calibration method and system for a DSA roadmap technology. The method comprises the steps: obtaining an underlying contrast image of a target tissue before no guide object is placed in the target tissue, and a real-time contrast image thereof after a guide object is placed in the target tissue; obtaining a subtracted image on the basis of the subtraction between the real-time contrast image and the underlying contrast image; fusing the subtracted image and the real-time contrast image to obtain a real-time needle insertion roadmap; and obtaining a guide object correction indicator line according to an offset between the real-time needle insertion roadmap and a preset needle insertion roadmap. In the present invention, the real-time needle insertion roadmap is obtained by means of the DSA roadmap technology.
Inventors:
ZHANG JIZHUANG (CN)
GUO YONGMEI (CN)
GUO YONGYANG (CN)
GUO YONGMEI (CN)
GUO YONGYANG (CN)
Application Number:
PCT/CN2023/075160
Publication Date:
December 14, 2023
Filing Date:
February 09, 2023
Export Citation:
Assignee:
KANGDA INTERCONTINENTAL MEDICAL EQUIPMENT CO LTD (CN)
International Classes:
G06T11/00; A61B34/20
Foreign References:
| CN115018945A | 2022-09-06 | |||
| CN110755097A | 2020-02-07 | |||
| CN112057165A | 2020-12-11 | |||
| US20190159842A1 | 2019-05-30 |
Attorney, Agent or Firm:
NINGBO YINZHOU SHENGFEI PATENT ATTORNEY FIRM (CN)
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