Title:
DOUBLE-C-ARM THREE-DIMENSIONAL IMAGING METHOD AND SYSTEM BASED ON DYNAMICALLY ADJUSTABLE MULTI-LEAF COLLIMATOR
Document Type and Number:
WIPO Patent Application WO/2024/011898
Kind Code:
A1
Abstract:
The present invention relates to the technical field of image processing. Disclosed are a double-C-arm three-dimensional imaging method and system based on a dynamically adjustable multi-leaf collimator. The method comprises the steps of acquiring a three-dimensional substrate image, which is obtained by means of each split-type collimator, of a target object in a fully-retracted state during a rack angle adjustment process of double C arms; selecting a three-dimensional region of interest; extracting therefrom a maximum projection density map at a corresponding rack angle; enabling a collimator surface to retain, in a ray direction, a light-through region in a range adaptive to the current maximum projection density region; and controlling a ray-emitting bulb tube to operate, and collecting, by means of a flat panel receiver, projection data at the current preset rack angle during an adaptive imaging process.
Inventors:
ZHANG JIZHUANG (CN)
GUO YONGMEI (CN)
GUO YONGYANG (CN)
GUO YONGMEI (CN)
GUO YONGYANG (CN)
Application Number:
PCT/CN2023/075304
Publication Date:
January 18, 2024
Filing Date:
February 10, 2023
Export Citation:
Assignee:
KANGDA INTERCONTINENTAL MEDICAL EQUIPMENT CO LTD (CN)
International Classes:
A61B6/00; A61B6/06
Foreign References:
| CN114886445A | 2022-08-12 | |||
| CN101953691A | 2011-01-26 | |||
| CN103536301A | 2014-01-29 | |||
| CN111728626A | 2020-10-02 | |||
| CN114788734A | 2022-07-26 | |||
| CN113367710A | 2021-09-10 |
Attorney, Agent or Firm:
NINGBO YINZHOU SHENGFEI PATENT ATTORNEY FIRM (CN)
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