Method for non-invasive measurement of cardiac output
US8798715B2 · kind B2 · utility
6Cited by
27References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2010 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Mar 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5635
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A comparatively light and compact permanent magnet arrangement for an MRI apparatus has a pair of opposed permanent magnet arrays with a shimming system to adjust the uniformity and strength of a magnetic field in a central chamber of the apparatus. The MRI apparatus is used to examine the extremities of a patient to determine cardiovascular characteristics from an analysis of the blood flow through selected arteries in the extremity. The information collected can be used to calculate such characteristics as total cardiac output, blood flow, arterial wall thickness and elasticity and the presence of plaque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.