Table 2 Quantitative evaluation of signal-to–noise (SNR) and contrast-to-noise (CNR) ratios for FPCT with acquisition of 20s and 10s as well as MDCT. Mean values (SD).
From: Flat panel CT versus multidetector CT in skull base imaging: are there differences in image quality?
FPCT 20s | FPCT 10s | MDCT | p-value FPCT20s/ FPCT 10s | p-value FPCT20s/ MDCT | p-value FPCT10s/ MDCT | |
|---|---|---|---|---|---|---|
SNR | 0.83 (2.98) | 0.77 (3.39) | 0.48 (1.71) | 0.55 | 0.002* | 0.05 |
CNR | 0.69 (4.41) | 0.65 (4.50) | 0.39 (1.83) | 0.88 | 0.32 | 0.23 |