Method and apparatus for generating a non-cardiac angiograph on a system capable of generating a cardiac angiograph
US5084912A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/541
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cardiac angiography system is configured to generate a non-cardiac angiograph by generating a blanking signal for a TV camera according to a desired non-cardiac image rate and image accumulation interval, while triggering the X-ray source to generate X-ray pulses typical for a cardiac application. The X-ray pulses are triggered by a shutter signal which has a pulse repetition rate greater than that typically used for a non-cardiac application so as to cause a plurality of X-ray pulses during the accumulation interval of the TV camera. The resulting plurality of X-ray pulse images are accumulated at the TV camera to form a single image frame for the non-cardiac exam. After a specified accumulation time, the TV camera closes the frame, sending the resulting video signal to a computer system for conversion, processing and storage. Resulting image data is used to form a display on a CRT and/or a printout as a hard-copy photograph.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.