Method of achieving reduced dose X-ray fluoroscopy by employing

Details Method of achieving reduced dose X-ray fluoroscopy by employing Method of achieving reduced dose X-ray fluoroscopy by employing

1992-11-05

1995-03-07

Dzierzynski, Paul M.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378 97, 36441313, H05G 146

Patent

active

053965310

ABSTRACT:
An interactive system for producing X-ray fluoroscopic images determines X-ray tube photon count and voltage for producing acceptable quality images while minimizing X-ray radiation dosage to a subject. An image is created and a signal to noise (S/N) ratio is estimated from the image, assuming a Poisson model is assumed for the X-ray image. The S/N ratio is determined by solving several simultaneous equations and the photon count is estimated to produce an image with a desired S/N ratio. Subsequent X-ray fluoroscopy images are produced with the optimum photon count Q, thereby reducing X-ray dosage. The optimization is repeated periodically to readjust the system.

REFERENCES:
patent: 4260894 (1981-04-01), Neumann
patent: 5179582 (1993-01-01), Kelley et al.
patent: 5224141 (1993-06-01), Yassa et al.
patent: 5253169 (1993-10-01), Corby, Jr.
patent: 5278887 (1994-01-01), Chiu et al.
patent: 5293415 (1994-03-01), Hartley et al.
patent: 5319696 (1994-06-01), Abdel-Maleh et al.
"Imaging Systems for Medical Diagnostics", by Krestel, Aktiengesellschaft, Berlin and Munich, pp. 103-107.
"Medical Imaging Systems" by Macovski, 1983 Prentice-Hall, Englewood Cliffs, N.J. 07632, pp. 23-35.
"Effect of Pulsed Progressive Fluoroscopy on Reduction of Radiation Dose in the Cardiac Catherizaion Laboratory", by Holmes, Wondrow, Gray, Vetter, Fellows and Julsrud, Journal. American College of Cardiology, vol. 15, No. 1, pp. 159-162.
"Fundamentals of Digital Image Processing", by Jain, Prentice-Hall (1989) pp. 132-188.
"Numerical Recipes in C", by Press, Flannery, Teukolsky and Veterling, Cambridge University Press, Cambridge, England (1988) pp. 517-539.

Affiliated with

Also associated with

Rating

Method of achieving reduced dose X-ray fluoroscopy by employing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of achieving reduced dose X-ray fluoroscopy by employing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of achieving reduced dose X-ray fluoroscopy by employing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1412407