X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1986-08-07
1989-09-26
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378207, H05G 160
Patent
active
048706663
ABSTRACT:
A reference phantom system for quantitative computer tomography employs a flexible reference phantom with means for urging the flexible reference phantom into contact along the curved surface of the lumbar region of a human patient. In one embodiment, the reference phantom is pre-curved in an arc greater than required. Pressure from the weight of a patient laying upon the reference phantom is effective for straightening out the curvature sufficiently to achieve substantial contact along the lumbar region. The curvature of the reference phantom may be additionally distorted by a resilient pad between the resilient phantom and a table for urging it into contact with the lumbar region. In a second embodiment of the invention, a flexible reference phantom is disposed in a slot in the top of a resilient cushion. The flexibility of the reference phantom and the stiffness of the resilient cushion are matched so that the reference phantom is deformed as it is urged into contact with the lumber region of a patient whereby substantially continuous contact is achieved with the reference phantom along substantially the entire contiguous length of the lumbar region. The resilient cushion and reference phantom may be enclosed in a flexible container. A partially curved reference phantom is a slot in a resilient cushion is also contemplated.
REFERENCES:
patent: 1049692 (1913-01-01), Franklin
patent: 4124799 (1978-11-01), Schittenhelm
patent: 4181858 (1980-01-01), Moore
patent: 4233507 (1980-11-01), Volz
patent: 4651335 (1987-03-01), Kalender et al.
patent: 4782502 (1988-11-01), Schuly
Church Craig E.
General Electric Company
Morrison Thomas R.
LandOfFree
Computer tomographic phantom does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Computer tomographic phantom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer tomographic phantom will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-193185