Title:
CALIBRATION PHANTOM AUTOMATIC POSITIONING METHOD, SCANNING SYSTEM AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/203602
Kind Code:
A1
Abstract:
A calibration phantom automatic positioning method, a scanning system and a readable storage medium. The method comprises the steps of: acquiring information of a starting position and an ending position of a scanning table, and determining the positions of the scanning table and the centroid of a phantom in z direction (step A); performing positioning image scan on the phantom from two different angles, i.e., x direction and y direction, and determining the positions of the phantom in two scanning planes to obtain a three-dimensional position of the phantom (step B); determining the actual deviation distance of the centroid of the phantom from the rotation center of a scanning gantry, and calculating the desired position of the scanning table in combination with the current position of the scanning table (step C); and according to the desired position of the scanning table, determining a predetermined stop position of the scanning table in a scanning protocol, and adjusting the moving direction and distance of the scanning table to achieve phantom positioning (step D). The calibration phantom automatic positioning method does not need to use a laser positioning lamp for positioning, does not need to scan for multiple times, and can determine the current position of the phantom by placing the phantom well and performing two times of positioning image scan, achieving full-automatic completion of system calibration and performance testing.
Inventors:
CAI BIAO (CN)
XU DAN (CN)
XU DAN (CN)
Application Number:
PCT/CN2020/108897
Publication Date:
October 14, 2021
Filing Date:
August 13, 2020
Export Citation:
Assignee:
NANJING ANKE MED TECH CO LTD (CN)
International Classes:
A61B6/00; A61B6/03; A61B6/04
Foreign References:
| CN111419257A | 2020-07-17 | |||
| CN109498051A | 2019-03-22 | |||
| CN106580356A | 2017-04-26 | |||
| CN110755099A | 2020-02-07 | |||
| CN110025327A | 2019-07-19 | |||
| CN104414677A | 2015-03-18 | |||
| CN103860182A | 2014-06-18 | |||
| US20050089138A1 | 2005-04-28 |
Attorney, Agent or Firm:
NANJING ZHISHI LAW FIRM OF INTELLECTUAL PROPERTY (CN)
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