Apparatus and method for cone beam volume computed...

Details Apparatus and method for cone beam volume computed... Apparatus and method for cone beam volume computed...

2006-01-17

2006-01-17

Church, Craig E. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Mammography

C378S020000

Reexamination Certificate

active

06987831

ABSTRACT:
Cone beam volume CT breast imaging is performed with a gantry frame on which a cone-beam radiation source and a digital area detector are mounted. The patient rests on an ergonomically designed table with a hole or two holes to allow one breast or two breasts to extend through the table such that the gantry frame surrounds that breast. The breast hole is surrounded by a bowl so that the entire breast can be exposed to the cone beam. Spectral and compensation filters are used to improve the characteristics of the beam. A materials library is used to provide x-ray linear attenuation coefficients for various breast tissues and lesions.

REFERENCES:
patent: 5526394 (1996-06-01), Siczek et al.
patent: 5602891 (1997-02-01), Pearlman
patent: 6298114 (2001-10-01), Yoda

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