Attenuation correction in hybrid PET using X-ray computed tomography. - M. Uegaki; K. Fujino; Kenya Murase; T. Kamiya; Y. Nakamura; Yusuke Uenishi; Makoto Nagayoshi; Minoru Kawamata; Youichi Yamazaki; Naohiko Oku; Jun Hatazawa (CARS, 2004)