Detection of immobilized contrast agent with dynamic thresholding
US10433817B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10132
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A solution is proposed for analyzing a body-part of a patient, the body-part having been perfused before performing the method with a contrast agent capable of circulating within the patient and of being substantially immobilized on a biological target. A corresponding method comprises providing at least one filtered image comprising a plurality of filtered values for corresponding locations of the body-part, each filtered value comprising an indication of the immobilized contrast agent at the corresponding location with a contribution of the circulating contrast agent being substantially reduced, generating a thresholded image comprising a plurality of thresholded values corresponding to the filtered values, the thresholded image being generated by setting each thresholded value to the corresponding filtered value or to a reset value according to a comparison of the filtered value with an amplitude threshold, providing a plurality of candidate thresholds defined by corresponding candidate values of the amplitude threshold, generating a plurality of candidate images corresponding to the candidate thresholds each one comprising a plurality of candidate values corresponding to the fi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.