@article{oai:showa.repo.nii.ac.jp:00000543,
 author = {SUYAMA, Jumpei and KATAYAMA, Yoichi and TAKAHASHI, Masumi and NOZIMA, Kazunari and HASHIGAYA, Kenji and TSUJI, Hiroaki and KAWASAKI, Haruhiko and HOSHIKAWA, Yoshikazu and KOBAYASHI, Rei and MUNECHIKA, Jiro and GOKAN, Takehiko and NIKAIDO, Kouji},
 issue = {3},
 journal = {The Showa University journal of medical sciences},
 month = {2016-09, 2019-07-26},
 note = {The aim of this study was to assess the performance of virtual non-calcium images from dual-energy computed tomography (DECT), using dual-source CT (DSCT). Forty-one patients suspected of having traumatic vertebral fractures who underwent DSCT with virtual non-calcium imaging were included in this study. For comparison, radiation exposure was measured in 11 patients receiving DSCT with a radiation exposure reduction system, and in 14 patients receiving conventional multi-detector-row CT scans. Radiation exposure, detectability of fractures and visual image quality were assessed and compared between the groups. Radiation exposure was less with the non-calcium image than with the other methods. The CT number (x-ray absorption coefficient of a pixel in a CT) for the affected vertebrae was significantly higher than for normal vertebrae. When the threshold of the CT number was determined as -25.6 HU, the sensitivity was 100% and specificity was 92.6%. In most cases, the quality of the virtual non-calcium image was inferior to the fat-suppressed T2-weighted magnetic resonance images. The virtual non-calcium image technique obtained using DSCT can be a useful part of the clinical diagnosis of vertebral fractures.},
 pages = {261--267},
 title = {Assessment of the Diagnostic Value and Image Quality of Dual-source Computed Tomography in Lumbar Vertebral Fractures: Comparison with Magnetic Resonance Imaging},
 volume = {28},
 year = {}
}