X-ray diagnosis method and apparatus

Details X-ray diagnosis method and apparatus X-ray diagnosis method and apparatus

1987-08-05

1989-03-14

LaRoche, Eugene R.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

358111, H05G 164

Patent

active

048130613

ABSTRACT:
X-ray pictures cooresponding to the same portion of a suject are stored in first and second imaging plates with the use of an x-ray of different energy. The stored X-ray pictures are converted to corresponding digital picture data and energy subtraction picture data is stored in memory with the use of a predetermined weight coefficient. A profile of a to-be-eliminated image of the picture stored es extracted and a remaining amount of the to-be-eliminated image is determined through comparison between the differentiated values of the profile and a threshold level.

REFERENCES:
patent: 4144569 (1979-03-01), Wagner
patent: 4387428 (1983-06-01), Ishida et al.
patent: 4544948 (1985-10-01), Okazaki
patent: 4559557 (1985-12-01), Keyes et al.
patent: 4663773 (1987-05-01), Haendle et al.
patent: 4686695 (1987-08-01), Macouski

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