Figure 5 . Analysis of the height of the LA roof as a predictor
of GH.
A: ROC curve for predicting GH, regarding the height of the LA roof from
the point where the LAPW and esophagus make contact. The cutoff value
for the height of the LA roof was calculated as 6.1 mm (AUC: 0.90;
sensitivity: 85.0%; specificity: 83.0%).
B: The prevalence of GH is shown according to the height of the LA roof,
with the cutoff value calculated using the ROC curve. The frequency of
GH occurrence was significantly higher in patients with a lower height
of the LA roof.
AUC, area under the curve; GH, gastric hypomotility; LA, left atrial;
LAPW, left atrial posterior wall; ROC, receiver-operating
characteristic.