全身+プラナー 全身+SPECT/CT • ⽇本放射線技術学会 平成29・30年度学術調査班「核医学検査における追加撮像の実態調査」 • Ichikawa H, et al. Current state of bone scintigraphy protocols and practice in Japan. AOJNMB. 2020; 8(2) 116-22. 全身+プラナー+SPECT/CT 0 20 40 60 80 施設内の取り決め 医師と相談 技師の判断 % 追加撮像の判断
75 100 Update number CV 15min 0 10 20 30 %CV 3 5 7 10 15 WO 4.8mm 9.6mm ** Gaussian filter Ichikawa H, et al. Automatic quantification package (Hone Graph) for phantom-based image quality assessment in bone SPECT: computerized automatic classification of detectability. ANM 2021; 35(8):937-946. Miyaji N, et al. Phantom and clinical evaluation of bone SPECT/CT image reconstruction with xSPECT algorithm. EJNMMI Research 2017; 7(53) 資料提供:癌研有明病院 宮司典明先⽣
process Lung NN NN Reference section Normal bone 13 mm 17 mm 22 mm 28 mm • Shibutani T, et al. The usefulness of SwiftScan technology for bone scintigraphy using a novel anthropomorphic phantom. Scientific Reports (2021). • Ichikawa H, et al. Automatic quantification package (Hone Graph) for phantom‐based image quality assessment in bone SPECT: computerized automatic classification of detectability. Annals of Nuclear Medicine (2021). • Fukami M, et al. Optimization of Number of Iterations as a Reconstruction Parameter in Bone SPECT Imaging Using a Novel Thoracic Spine Phantom. JNMT (2021). • Ichikawa H, et al. Optimization of cross-calibration factor for quantitative bone SPECT without attenuation and scatter correction in the lumbar spine: head-to-head comparison with attenuation and scatter correction. Nuclear medicine communications (2021)
method (ROI) A B C D Sphere size (mm) CNR 0 20 40 60 10 15 20 25 30 Hone Graph (VOI) A B C D Sphere size (mm) CNR 3.6-11.9 7.9-30.6 13.5-50.5 14.0-54.8