| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9845234 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 7 Pages |
Abstract
We proposed dual-energy X-ray CT for direct measurement of electron densities to make treatment planning for heavy ion radiotherapy more accurate. The accuracy was proved to be about 1% using synchrotron radiation in previous experiments carried out at SPring-8 and PF-AR. The electron densities of some porcine organs were measured in this method at SPring-8, and compared with data of ICRU Report. Besides, the atomic number of the object is also obtained as a byproduct. Comparing the CT-number given in conventional CT scanning is an important information. Images of the electron density and atomic number may give new information to medical diagnosis.
Related Topics
Physical Sciences and Engineering
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Instrumentation
Authors
M. Torikoshi, T. Tsunoo, Y. Ohno, M. Endo, M. Natsuhori, T. Kakizaki, N. Ito, K. Uesugi, N. Yagi,