The CTRx, a therapy machine and CT scanner

Author

Norman, Amos

Author_Institution

Dept. of Radiat. Oncology, California Univ., Los Angeles, CA, USA

Volume

3

fYear

2000

fDate

2000

Firstpage

2194

Abstract

The idea for X-ray phototherapy (XPT) - the use of contrast media to enhance the X-ray dose absorbed by tumors - and the development of the CTRx to deliver it started with a visit to the author by Forrest Adams, a pediatric cardiologist, some two decades ago. He was concerned because of the very long X-ray exposures, frequently exceeding 30 minutes and sometimes over 60 minutes, that his patients, infants and young children, were receiving during angiography. Two recent developments make the prospects for XPT, delivered by a CTRx, bright. The first is the current development of table top monoenergetic X-ray sources based on the Compton scattering of laser photons from relativistic electron beams. This will allow matching the X-ray energy to the peak of the DEF vs photon energy curves. The other is the development of CM that are targeted to tumors

Keywords

biomedical equipment; computerised tomography; paediatrics; radiation therapy; CT scanner; CTRx; X-ray energy matching; X-ray phototherapy; contrast media; infants; laser photons; patients; pediatric cardiologist; relativistic electron beams; table top monoenergetic X-ray sources; therapy machine; very long X-ray exposures; young children; Angiography; Cardiology; Computed tomography; Electromagnetic scattering; Medical treatment; Neoplasms; Particle scattering; Pediatrics; X-ray lasers; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-6465-1

Type

conf

DOI

10.1109/IEMBS.2000.900568

Filename

900568