Fig. 5. Measurement performance for the entire aorta, TL, and FL in 25 cases with DL and manual methods.

A. Measurement error for the entire aorta at eight levels. B. Measurement error for the TL at four levels. C. Measurement error for the FL at four levels. In the box plots, the boxes indicate the median and interquartile range, while the error bars represent the minimum and maximum values. Significance is labeled as follows: ^*p < 0.05, ^**p < 0.01. P1 = innominate artery origin, P2 = proximal to the left common carotid artery origin, P3 = proximal to the left subclavian artery origin, P4 = distal to the left subclavian artery origin, P5 = at the level of the diaphragm, P6 = at the superior border of the celiac axis origin, P7 = at the superior border of the lower renal aorta origin, P8 = proximal to the aortic bifurcation