Feasibility of Using the Image1 S Enhancement System
A total of 1110 responses were obtained from 30 participants after they
observed the paired images in 37 respective cases. A cross tabulation
analysis of the two categorical variables was performed for comparison
of the qualitative evaluation results of the participants and the
authors. The analysis revealed that the qualitative evaluation of the
participants and the authors were significantly close to each other
(χ2[1]=462.92). The Cohen’s kappa value was 0.63, indicating a
substantial agreement between the qualitative evaluations by the
participants and the authors. The results showed 96.2% congruence
between the participants’ and the authors’ observations with respect to
the perpendicular lesions, and 61.2% congruence with respect to the
longitudinal lesions. Inter-rater reliability between participants was
tested by ICC, and the results of the test showed significant
reliability of the participant observation data (ICC(2, 30)=0.96, 95%
CI [0.94, 0.98]).
The correlation between the participants’ accuracy and their years of
work was non-significant (r = 0.18, p= 0.331), thus, previous work
(clinical) experience had no effect on the qualitative evaluation.