K-edge magnification digital angiography using a 100-um-focus tungsten tube

Eiichi Sato; Etsuro Tanaka; Hidezo Mori; Hiroki Kawakami; Toshiaki Kawai; Takashi Inoue; Akira Ogawa; Mitsuru Izumisawa; Kiyomi Takahashi; Shigehiro Sato; Kazuyoshi Takayama

doi:10.1117/1.2542285

1 February 2007 K-edge magnification digital angiography using a 100-um-focus tungsten tube

Eiichi Sato, Etsuro Tanaka, Hidezo Mori, Hiroki Kawakami, Toshiaki Kawai, Takashi Inoue, Akira Ogawa, Mitsuru Izumisawa, Kiyomi Takahashi, Shigehiro Sato, Kazuyoshi Takayama

Author Affiliations +

Optical Engineering, Vol. 46, Issue 2, 026503 (February 2007). https://doi.org/10.1117/1.2542285

A microfocus x-ray tube is useful to perform magniﬁcation digital radiography, including phase-contrast effects. The 100-m-focus x-ray generator consists of a main controller for regulating the tube voltage and current, and a tube unit with a high-voltage circuit and a ﬁxed anode x-ray tube. The maximum tube voltage, current, and electric power are 105 kV, 0.5 mA, and 50 W, respectively. Using a 3-mm-thick aluminum ﬁlter, the x-ray intensity is 26.0 Gy/s at 1.0 m from the source, with a tube voltage of 60 kV and a current of 0.50 mA. Because the peak photon energy is approximately 35 keV using the ﬁlter with a tube voltage of 60 kV, the bremsstrahlung x-rays are absorbed effectively by iodine-based contrast media with an iodine K-edge of 33.2 keV. Magniﬁcation angiography is performed by three-fold magniﬁcation imaging with a computed radiography sys-tem using iodine-based microspheres 15 m in diameter. In angiography of nonliving animals, we observe ﬁne blood vessels approximately 100 m with high contrasts.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Eiichi Sato, Etsuro Tanaka, Hidezo Mori, Hiroki Kawakami, Toshiaki Kawai, Takashi Inoue, Akira Ogawa, Mitsuru Izumisawa, Kiyomi Takahashi, Shigehiro Sato, and Kazuyoshi Takayama "K-edge magnification digital angiography using a 100-um-focus tungsten tube," Optical Engineering 46(2), 026503 (1 February 2007). https://doi.org/10.1117/1.2542285

Published: 1 February 2007

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available