Methods and apparatus for individually optimizing uniform contrast enhancements in computed tomography imaging
US9456798B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2015 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | May 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is provided for optimizing a contrast injection function for CT imaging. The method includes injecting, with an injector pump, a test bolus of a contrast agent into a subject. The method also includes computing, on a processor, an impulse enhancement function. The method also includes determining, on a processor, a target enhancement function for a region of interest. The method also includes determining, with a processor, a plurality of parameters for a functional form for a contrast injection function in a time domain. The method also includes determining for the contrast injection function a constraint. The method also includes determining, with a processor, particular values for the plurality of parameters, which satisfy the constraint and minimize a difference between a value of an enhancement function and the target enhancement function computed in the time domain at discrete time periods without use of a Fourier transform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.