Can a quantitative means be used to predict flow patterns: Agreement between visual inspection vs. flow index derived flow patterns

Our findings clearly showed that a FI-derived method of defining shapes is as accurate as visual inspection or more depending on the study. The greatest disagreement occurs in those grey or transition zones between plateau, bell and tower. This system could be useful in removing much of the ambiguity and difficulty in reading flows.Table. Shape concordance findings in males and females between readers and those determined by ROC and 1 SD Cutoffs.% Determined to agree using 1 SD FI cutoffs% Determined to agree using ROC cutoffsMalesRead as bell67.8%77.6%Read as plateaus93.6%87.9%Read as tower36.2%42.6%FemalesRead as bell69.5%56.1%Read as plateau97.2%94.4%Read as tower43.3%84.4%