1. Department of Nuclear Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan, ROC
2. School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, ROC
3. Graduate Institute of Radiological Science, Central Taiwan University of Science and Technology, Takun, Taichung 406, Taiwan, ROC
4. Division of Cardiology, Yuan Rung Hospital, Yuanlin, Changhua 510, Taiwan, ROC
5. Department of Radiation Oncology, E-Da Cancer Hospital, Kaohsiung 824, Taiwan, ROC
6. School of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung 402, Taiwan, ROC
7. Department of Diagnostic Radiology, Chung Shan Medical University Hospital, Taichung 402, Taiwan, ROC