Estimation of distances and size of lesions in the colon with an imaging capsule
US9037219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Jan 21, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/547
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of estimating distances in a colon of a subject, including: orally administering to a subject a contrast agent, orally administering an imaging capsule to the subject, emitting radiation from the imaging capsule at a location in the colon, detecting photons that are returned from an interaction of the radiation with an inner wall of the colon and contents of the colon, summating the detected photons with energies corresponding to X-ray fluorescence interactions to form a first count, summating the detected photons with energies corresponding to Compton back-scattering interactions to form a second count, determining the distance from the imaging capsule to the inner wall of the colon and a concentration of the contrast agent at the location of the imaging capsule in the colon using the values of the first count and the second count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.