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Optical Engineering

X-ray spectra from a cerium target and their application to cone beam K-edge angiography
Author(s): Eiichi Sato; Akira Yamadera; Etsuro Tanaka; Hidezo Mori; Toshiaki Kawai; Fumihito Ito; Takashi Inoue; Akira Ogawa; Shigehiro Sato; Kazuyoshi Takayama; Jun Onagawa; Hideaki Ido
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Paper Abstract

The cerium-target x-ray tube is useful for performing cone beam K-edge angiography, because K-series characteristic x-rays from the cerium target are absorbed effectively by iodine-based contrast media. The x-ray generator consists of a main controller and a unit with a high-voltage circuit and a fixed anode x-ray tube. The tube is a glass-enclosed diode with a cerium target and a 0.5-mm-thick beryllium window. The maximum tube voltage and current are 65 kV and 0.4 mA, respectively, and the focal-spot sizes are 1.3×0.9 mm. Cerium K-series characteristic x-rays are left, using a 3.0-mm-thick aluminum filter, and the x-ray intensity is 19.9 μGy/s at 1.0 m from the source with a tube voltage of 60 kV and a current of 0.40 mA. Angiography is performed with a computed radiography system using iodine-based microspheres 15 μm in diameter. In angiography of nonliving animals, we observe fine blood vessels of approximately 100 μm with high contrasts.

Paper Details

Date Published: 1 September 2005
PDF: 6 pages
Opt. Eng. 44(9) 096502 doi: 10.1117/1.2049268
Published in: Optical Engineering Volume 44, Issue 9
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Akira Yamadera, Hirosaki Univ. (Japan)
Etsuro Tanaka, Tokyo Univ. of Agriculture and Technology (Japan)
Hidezo Mori, National Cardiovascular Ctr. Research Institute (Japan)
Toshiaki Kawai, Hamamatsu Photonics K.K. (Japan)
Fumihito Ito, Digital Culture Technology Corp. (Japan)
Takashi Inoue, Iwate Medical Univ. (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)
Jun Onagawa, Tohoku Gakuin Univ. (Japan)
Hideaki Ido, Tohoku Gakuin Univ. (Japan)

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