Method and system for calculating SUV normalization coefficient in a SPECT quantitative tomographic image
US11189374B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2020 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20084
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention discloses a method and system for calculating SUV normalization coefficient in a SPECT quantitative tomographic image, comprises the following steps: a) averaging the anterior plain film image and posterior plain film image obtained by performing plain film scanning on a subject's whole body to get an average image, from which the area corresponding to the radioactive uptake site in the subject is segmented, b) correcting attenuation coefficient of human body, detection efficiency and acquisition time for each pixel value in the effective radioactive uptake area within said average image, c) averaging all the effective radioactive uptake area pointed at by said quantitative two-dimensional radioactive uptake activity image obtained in step b, and performing volume normalization and decay time correction to figure out the average radiopharmaceutical activity concentration absorbed in the subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.