Article Figures & Data
Tables
- Table 1:
Inter-rater agreement of 8 neuroradiologists reviewing 22 language fMRI examinations, each with and without the use of CLIa
Mean κ Without CLI With CLI Overall lateralization 0.64 0.70 Overall quality 0.11 0.08 Overall noise 0.05 0.07 Overall confidence 0.12 0.03 ↵a Measured parameters include overall lateralization, image quality, overall image noise, and subjective confidence of the lateralization conclusion. Lateralization was dichotomized for either left or nonleft.
- Table 2:
Comparison of a neuroradiologist's subjective impression of language lateralization from fMRI compared with known lateralization, conducted without (top half) and with (bottom half) the use of CLIa
Known Lateralization Neuroradiologist's Subjective Impression Left Nonleft Without CLI Left 77 (0.44) 11 (0.06) Nonleft 28 (0.16) 60 (0.34) With CLI Left 81 (0.46) 7 (0.04) Nonleft 27 (0.15) 61 (0.35) ↵a The numbers refer to the total assessments obtained after review of all 8 neuroradiologists with all 22 studies, for a total of 176 comparisons. The number in parentheses is the corresponding fraction. Lateralization was dichotomized into 2 categories of either left or nonleft lateralization, with the latter group combining bilateral and right lateralization (ie, any examination with some component of right-sided activation).
- Table 3:
Neuroradiologist's subjective impression of language lateralization, with trichotomized lateralization categories of left, bilateral, and righta
Known Lateralization Neuroradiologist's Subjective Impression Left Bilateral Right Without CLI Left 77 (0.44) 11 (0.06) 0 (0.00) Bilateral 26 (0.15) 12 (0.07) 10 (0.06) Right 2 (0.01) 21 (0.12) 17 (0.10) With CLI Left 81 (0.46) 7 (0.04) 0 (0.00) Bilateral 27 (0.15) 11 (0.06) 10 (0.06) Right 0 (0.00) 25 (0.14) 15 (0.09) ↵a Similar to Table 2. The top half displays results obtained without using CLI, while the bottom half displays results obtained using CLI. The number in parentheses is the corresponding fraction.
