Hiroyuki Yamaji

Department of Ragiological Technology, National Kyusyu Medical Center, Fukuoka, Japan

[ 1 ] - Evaluation of Simultaneous Dual-radioisotope SPECT Imaging Using 18F-fluorodeoxyglucose and 99mTc-tetrofosmin

Objective(s): Use of a positron emission tomography (PET)/single-photonemission computed tomography (SPECT) system facilitates the simultaneousacquisition of images with fluorine-18 fluorodeoxyglucose (18F-FDG) andtechnetium (99mTc)-tetrofosmin. However, 18F has a short half-life, and 511keV Compton-scattered photons are detected in the 99mTc energy window.Therefore, in this study, we aimed to ...

[ 2 ] - Evaluation of the Effect of Tumor Position on Standardized Uptake Value Using Time-of-Flight Reconstruction and Point Spread Function

Objective(s): The present study was conducted to examine whether the standardized uptake value (SUV) may be affected by the spatial position of a lesion in the radial direction on positron emission tomography (PET) images, obtained via two methods based on time-of-flight (TOF) reconstruction and point spread function (PSF). Methods: A cylinder phantom with the sphere (30mm diameter), located in...

Co-Authors

Atsuko Kawakami 1  

Keiko Koyama 1  

Mizuki Mochiki 1  

Toshihiko Ino 1  

Yasuyuki Takahashi 1  

Akihiro Ichikawa 1  

Ayumi Ishii 1  

Hitoshi Yabe 1  

Kenichi Kashikura 1  

Kunio Doi 1  

Souichi Yamamoto 1  

Yasuharu Wakabayashi 1