TY - JOUR
T1 - Development of a flexible end-shield using tungsten curtains for 3D PET
AU - Yamamoto, S.
AU - Sakamoto, S.
AU - Matsumoto, K.
AU - Senda, M.
N1 - Funding Information:
Manuscript received July 14, 2005; revised March 28, 2006. This work was supported in part by a fund for the Development Program of New Medical Instruments, Kobe City. S. Yamamoto is with the Kobe City College of Technology, Nishi-ku, Kobe 651-2194, Japan (e-mail: s-yama@kobe-kosen.ac.jp). S. Sakamoto, K. Matsumoto, and M. Senda are with the Institute of Biomedical Research and Innovation (IBRI), Chuo-ku, Kobe 650-0047, Japan. Color versions of Figs. 2–6 available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TNS.2006.876001
PY - 2006/10
Y1 - 2006/10
N2 - In the three-dimensional (3D) acquisition of positron emission tomograph (PET) without septa, random and scatter due to events from outside the field of view (FOV) become a serious problem. They decrease the signal to noise ratio and the quantitation of the image and also limit the count rate capability of the PET system. To reduce these effects, we developed a flexible end-shield using tungsten curtains (curtain-shield) that consists of a mobile stand, a cylindrical support, and flexible tungsten curtains. The tungsten curtains are made of four layers of 30 mm square, 1 mm thick tungsten plates contained in pockets of cloth. Because the tungsten curtains are flexible, they can safely be used even in body studies. Reduction of random and scatter were observed by using the curtain-shield in both phantom and human studies. Results indicate that the curtain-shield has a potential to improve the image quality of PET studies.
AB - In the three-dimensional (3D) acquisition of positron emission tomograph (PET) without septa, random and scatter due to events from outside the field of view (FOV) become a serious problem. They decrease the signal to noise ratio and the quantitation of the image and also limit the count rate capability of the PET system. To reduce these effects, we developed a flexible end-shield using tungsten curtains (curtain-shield) that consists of a mobile stand, a cylindrical support, and flexible tungsten curtains. The tungsten curtains are made of four layers of 30 mm square, 1 mm thick tungsten plates contained in pockets of cloth. Because the tungsten curtains are flexible, they can safely be used even in body studies. Reduction of random and scatter were observed by using the curtain-shield in both phantom and human studies. Results indicate that the curtain-shield has a potential to improve the image quality of PET studies.
KW - End-shield
KW - Flexible
KW - Positron emission tomography (PET)
KW - Tungsten
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U2 - 10.1109/TNS.2006.876001
DO - 10.1109/TNS.2006.876001
M3 - Article
AN - SCOPUS:33750424778
SN - 0018-9499
VL - 53
SP - 2671
EP - 2674
JO - IEEE Transactions on Nuclear Science
JF - IEEE Transactions on Nuclear Science
IS - 5
M1 - 1710254
ER -