Quantitative pulmonary imaging
US6915151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Feb 16, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5601
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention comprises imaging and quantitative measurement of lung ventilation, particularly in a human lung. Methods for quantitative imaging of lung ventilation, and the further provided systems and algorithmic tools therefore, comprise three primary components: the combined MRI ventilation/perfusion (V/Q) imaging techniques using hyperpolarized helium-3 (3He) gas (H3He); the three-dimensional quantitative imaging of absolute lung perfusion (Q) and collection of local magnetic resonance image data therefrom to produce an absolute lung perfusion image data; and the algorithmic co-registration of the two image data sets, (HP-3He MRI image of V/Q and MR imaging of quantitative perfusion (Q) in the lung). From the data acquired in the combined data sets and their spatial co-registration, absolute ventilation (V) is computed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.