Table 2. Results of the assessment of the vascular loop of AICA in CPA and IAC.
The data are represented as frequency (n), percentage (%), and mean. Sample size of the study, n = 228.
AICA = anterior inferior cerebellar artery; CPA = cerebellopontine angle; IAC = internal auditory canal
Variable | Radiologist 1, n (%) | Radiologist 2, n (%) | Mean, n (%) | |
Presence of the AICA loop | No | 120 (52.6%) | 119 (52.2%) | 119.5 (52.4%) |
Yes | 108 (47.4%) | 109 (47.8%) | 108.5 (47.6%) | |
Chavda classification of the AICA loop | Type 1 | 59 (54.6%) | 62 (56.9%) | 60.5 (55.8%) |
Type 2 | 45 (41.7%) | 45 (41.3%) | 45 (41.5%) | |
Type 3 | 4 (3.7%) | 2 (1.8%) | 3 (2.7%) |