Title:
【発明の名称】蛍光透視観察装置
Document Type and Number:
Japanese Patent JP2539133
Kind Code:
B2
Abstract:
A method for fluoroscopically observing a living creature with reduced x-ray dosage is usable with a video monitor for displaying frames of image samples received during respective ones of frame scan intervals that regularly and successively occur at a display frame rate sufficiently high that brightness flicker is acceptably low to a human observer; an x-ray source that can be gated on for intervals not as long as a display frame; a fluoroscopic camera, including a raster-scanning video camera and x-ray-to-light conversion apparatus with persistence not appreciably longer than a display frame; and frame filling apparatus for grabbing frames of image samples and interpolating between successively grabbed frames of image samples, when necessary, to generate frames of image samples at said display frame rate. During ones of said successive frame scan intervals, x-ray radiation is directed from the gated x-ray source through the living creature; the x-ray shadow of at least a portion of the living creature is viewed with the fluoroscopic camera; and the frame filling apparatus grabs frames of image samples from the raster-scanning video camera to be stored in frame stores and used as bases from which to compute fill frames of image samples. The frame filling apparatus continuously supplies to the video monitor the frames of image samples it generates at display frame rate.
Inventors:
FUASHII FUOADO YATSUSA
AIMAN ARUBAATO ABUDERUUMAREKU
JON JOSEFU BUROOMAA
CHUTSUKA SURINIBASU
AIMAN ARUBAATO ABUDERUUMAREKU
JON JOSEFU BUROOMAA
CHUTSUKA SURINIBASU
Application Number:
JP4771292A
Publication Date:
October 02, 1996
Filing Date:
February 05, 1992
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
A61B6/00; H04N5/32; H04N7/01; H04N7/18; A61B6/03; H04N7/46; H05G1/60; H05G1/62; (IPC1-7): A61B6/00; A61B6/00; H05G1/62
Domestic Patent References:
| JP4632133B2 |
Attorney, Agent or Firm:
Tokunji Ikunuma