Method and apparatus for measuring lung density by Compton backscattering
US5003980A · kind A · utility
20Cited by
6References
37Claims
0Family size
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Key dates
| Filing date | Jan 29, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Jan 29, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The density of the lung of a patient suffering from pulmonary edema is monitored by irradiating the lung by a single collimated beam of monochromatic photons and measuring the energies of photons Compton backscattered from the lung by a single high-resolution, high-purity germanium detector. A compact system geometry and a unique data extraction scheme are utilized to monimize systematic errors due to the presence of the chestwall and multiple scattering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.