Mean CNR and ADC values measured by two different DWI sequences in spinal lesions
| Sequence | ||||
|---|---|---|---|---|
| EPI-DWI | Non-CPMG ssFSE DWI | |||
| CNR | ADC(10−3 mm2/s) | CNR | ADC(10−3 mm2/s) | |
| Metastases (n = 6) | 15.46 ± 5.76 | 0.72 ± 0.31 | 15.96 ± 5.81 | 0.69 ± 0.30 |
| Spondylodiskitis (n = 6) | 4.02 ± 0.90 | 1.51 ± 0.25 | 5.26 ± 0.93 | 1.21 ± 0.24 |
| Compression fracture (n = 2) | 10.43 ± 2.95 | 1.61 ± 0.46 | 10.78 ± 3.15 | 1.54 ± 0.36 |
Note:—CNR indicates contrast-to-noise ratio; ADC, apparent diffusion coefficient; DWI, diffusion-weighted imaging; EPI, echo-planar imaging; non-CPMG, non–Carr-Purcell-Meiboom-Gill; SS-FSE, single-shot fast spin-echo.
Data are presented as mean ± SD. ADC values were calculated for a “b” value of 600 mm2/s.