Radiographic apparatus
Patent
·
OSTI ID:5762595
In therapeutic radiographic apparatus it is desirable to maintain the penetrating radiation in passing through tissue to be irradiated, rather than surrounding healthy tissue, despite movements of the patient. A shadowgraph radiographic picture of part of the patient is obtained by derivation from cross-sectional radiographic pictures from computerized axial tomography (CAT) apparatus. A similar shadowgraph picture is obtained, during therapy treatment, by collecting the therapy radiation after passing through the body. The two pictures are compared to determine the position of the therapy radiation relative to the tissue to be irradiated and the position is adjusted in response to the comparison.
- Assignee:
- EMI Ltd.
- Patent Number(s):
- US 4118631
- OSTI ID:
- 5762595
- Country of Publication:
- United States
- Language:
- English
Similar Records
Computed radiograph: a method of correlating axial tomographic images with simulation and port films
Medical radiographic apparatus
Apparatus for positioning a sample in a computerized axial tomographic scanner
Journal Article
·
Sat Oct 31 23:00:00 EST 1981
· Int. J. Radiat. Oncol., Biol. Phys.; (United States)
·
OSTI ID:5682083
Medical radiographic apparatus
Patent
·
Tue Jun 03 00:00:00 EDT 1980
·
OSTI ID:5607430
Apparatus for positioning a sample in a computerized axial tomographic scanner
Patent
·
Mon Apr 14 23:00:00 EST 1986
·
OSTI ID:5589012