CT imaging system and method using a task-based image quality metric to achieve a desired image quality
US10973489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Jun 27, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/467
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Computed tomography (CT) imaging system has at least one processing unit configured to receive operator inputs that include a modified system feature and a clinical task having a task object and also receive operator inputs for determining a task-based image quality (IQ) metric. The task-based IQ metric represents a desired overall image quality of image data for performing the clinical task. The image data acquired using a reference system feature. The at least one processing unit is also configured to determine an exposure-control parameter based on the task object, the modified system feature, and the task-based IQ metric. The at least one processing unit is also configured to direct the x-ray source to generate the x-ray beam during the CT scan, wherein at least one of the tube current or the tube potential during the CT scan is a function of the exposure-control parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.