Figure 1From: A shallow chest correlates with the aortic position in the normal spine: features resembling those observed in structural scoliosis CT image measurement. The anteroposterior chest dimension (d), aortic location, whether a positive value was found on the anterior-right side (a) and the ribcage rotation angle (∠θ) were measured on CT images. Rightward ribcage rotation was defined as positive.Back to article page