Digital radiography apparatus

Details Digital radiography apparatus Digital radiography apparatus

1988-10-11

1990-02-27

Jaworski, Francis

Surgery

Truss

Pad

A61B 600

Patent

active

049037056

ABSTRACT:
A device for obtaining an image of a subject including a signal generating device including, for example, an X-ray generator for obtaining a signal representative of the subject, a detecting device for detecting a predetermined phase such as the R-wave of the electrocardiographic waveform of the subject, and an actuating device responsive to the detecting device for actuating the X-ray generator in substantial synchronism with the occurrence of the predetermined phase of the electrocardiographic waveform to thereby obtain the image of the subject. The device may include control circuitry for operating the detecting device, the actuating device and X-ray generator in the foregoing order to obtain a mask image of the subject, a device for storing the mask image, a device for injecting a contrast medium into the subject; a device for repeating the above operation of the detecting device, the actuating device, and the X-ray generator in the foregoing order to obtain a live image of the subject, and a device for subtracting the mask image and the live image with respect to each other to obtain a subtraction image to thereby eliminate motion-artifacts due to heartbeats of the subject, although subtraction angiography need not be employed. Different modes of operation of the device are also disclosed.

REFERENCES:
patent: 3871360 (1975-03-01), Van Horn et al.
patent: 3954098 (1976-05-01), Dick et al.
patent: 4182311 (1980-01-01), Seppi et al.
patent: 4245647 (1981-01-01), Randall
patent: 4366820 (1983-01-01), Heyda et al.
patent: 4413630 (1983-11-01), Anderson et al.
patent: 4547892 (1985-10-01), Richey et al.
patent: 4585008 (1986-04-01), Jarkewicz
patent: 4611340 (1986-09-01), Okazaki
patent: 4662379 (1987-05-01), Macovski
patent: 4729379 (1988-03-01), Ohe
Hirji, M. et al., "EKG-Gated DISA in the Detection of Pulmonary Emboli", Radiology 1984, vol. 152, pp. 19-22.
Ozaki, T. et al., "DSA Device" Jap. Kokai Pat. Pub. No. 59-192353, publ. Oct. 31, 1984 as translated by USPTO on 10/1/87.
Fujii, C. et al., "X-Ray Diagnostic Device", Jap. Publ No. 59-231985, issued 23 Dec. 1984 as translated by USPTO on 11/1987 as PTO #5319.
Hohne, K. H. (editor), "Digital Image Processing in Medicine", Proceedings Hamburg 10-5-81, Springer-Verlag N.Y. 1981, pp. 1-41, 196-197.
Hohne, K. H., "Digital Image Processing in Medicine", Proceedings Hamburg 10-5-81, Springer-Verlag, N. Y. 1981.
Ovitt, T. et al., "Development of A Digital Video Subtraction System for Intravenous Angiography", Proc. Soc. Photo-Opt. Instr. Engrg, vol. 206 (1979), pp. 73-76.
Alpert, N. A. et al., "Non-Invasive Nuclear Kinecardiography", Jrnl Nuclear Medicine, vol. 15, No. 12, pp. 1182-1184.

Affiliated with

Also associated with

Rating

Digital radiography apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital radiography apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital radiography apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-166904