Bolus tracking
US11202613B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2018 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Feb 9, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/469
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a CT scanning method of bolus tracking, multiple CT scans are performed on a region of interest (ROI) of a subject while a contrast agent is injected into the subject. In a tracking process of the contrast agent, first and second CT values of the ROI of the subject for first and second CT scans are respectively obtained. If the second CT value is no less than a target threshold, the tracking process is finished. If the second CT value is less than the target threshold, an interval for increasing the second CT value to the target threshold is determined according to the first and second CT values and a first CycleTime representing a duration between starts of the first and second scans. Then a second CycleTime is set based on the interval, and a third scan is performed according to the second CycleTime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.