Methods for injecting a contrast medium to generate prolonged uniform vascular enhancement
US6055985A · kind A · utility
54Cited by
22References
20Claims
0Family size
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Key dates
| Filing date | Apr 9, 1999 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/14566
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A contrast medium injector for injecting a patient with contrast medium for a CT scan is programmed to provide an injection protocol that is a representation of an ideally defined exponential curve with an initial injection rate decaying at an exponential rate. This has been found to produce a uniform vascular enhancement for the scanning of a patient's blood vessels. The particular exponential decay coefficient which has been found to be optimal is directly proportional to the cardiac output divided by the patient's weight and is approximated at 0.01 for a typical human.
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