1. Department of Bioimaging Information Analysis, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
2. Project “Medical Radioisotope Application”, Department of Radiation-Applied Biology Research, Takasaki Advanced Radiation Research Institute, Quantum Beam Advanced Research Directorate, National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki 370-1292, Japan
3. Department of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Science, Chiba University, Chiba 260-8675, Japan
4. Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan