Determination of the concentration distribution of sonically dispersive elements
US10357227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2014 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Dec 25, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/0891
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical apparatus (200, 300, 400, 500) determines the concentration distribution of sonically dispersive elements (606, 2001) within a subject (306, 604, 1004), wherein the medical apparatus comprises: a memory (212) for storing machine executable instructions (224, 226, 228, 230, 232, 318) and a processor (206) for executing the machine executable instructions. Execution of the instructions cause the processor to: receive (100) shear wave data (214) descriptive of the propagation of shear waves (310, 608, 1118) within the subject for at least two frequencies; determine (102) a mechanical property (316, 618, 620) of the subject using the shear wave data at each of the at least two frequencies; determine (104) a power law relationship (218, 702) between the at least two frequencies and the mechanical property; and determine (106) the concentration distribution of the sonically dispersive elements within the subject using the power law relationship and calibration data (222, 704, 800).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.