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Fig. 3 | BMC Anesthesiology

Fig. 3

From: Comparison of the effect of different degrees of passive leg raising on the internal jugular vein cross-sectional area in patients before thoracic surgery

Fig. 3

Overall correlation diagram of the factors related to the IJV CSA

Scatter plots and a correlation matrix of patients’ weight, height, BMI, gender, age, fasting time, preoperative rehydration and CSA at 0 degrees, 30 degrees, and 50 degrees. Sections with significant correlations are identified using rectangles. IJV, internal jugular vein; CSA, cross-sectional area.

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