Case Report
The Usefulness of Dual-Layer Spectral Computed Tomography for Myelography: A Case Report and Review of the Literature
Table 1
Quantitative image analysis.
| | | ROIcanal | ROIspinal | Contrast | Image noise | CNR |
| | Conventional CT image | 230.4 | 38.4 | 192.0 | 32.4 | 4.9 | | Virtual monochromatic image (55 keV) | 341.3 | 57.2 | 284.1 | 23.9 | 11.9 | | Virtual monochromatic image (40 keV) | 638.3 | 89.9 | 548.4 | 28.8 | 19.0 |
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