Patient anatomy and task specific automatic exposure control in computed tomography
US12002204B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 10, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Aug 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30168
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Techniques are described for tailoring automatic exposure control (AEC) settings to specific patient anatomies and clinical tasks. According to an embodiment, computer-implemented method comprises receiving one or more scout images captured of an anatomical region of a patient in association with performance of a computed tomography (CT) scan. The method further comprises employing a first machine learning model to estimate, based on the one or more scout images, expected organ doses representative of expected radiation doses exposed to organs in the anatomical region under different AEC patterns for the CT scan. The method can further comprises employing a second machine learning model to estimate, based on the one or more scout images, expected measures of image quality in target and background regions of scan images captured under the different AEC patterns, and determining an optimal AEC pattern based on the expected organ doses and the expected measures of image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.