Controlling pulse pileup
US11179116B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 2020 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | May 7, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/545
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods, devices, systems, and apparatus for controlling pulse pileup are provided. In one aspect, a method of controlling pulse pileup includes: obtaining scan protocol parameters of a computed tomography (CT) device, the scan protocol parameters including an exposure voltage, an exposure duration for each revolution of a scanning of an object, and a number of views for each revolution, determining an angle of a radioactive source for an i-th view based on the number of views and an initial position of the radioactive source, obtaining an optimal exposure current for the i-th view under the exposure voltage by minimizing an output value of an objective function for the i-th view, and determining a current view based on the exposure duration for each revolution and a current exposure moment to perform the scanning on the object with the optimal exposure current for the current view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.