Computational and Mathematical Methods in Medicine / 2013 / Article / Fig 5

Research Article

Semiautomatic Segmentation of Ventilated Airspaces in Healthy and Asthmatic Subjects Using Hyperpolarized MRI

Figure 5

Comparison of VLV measured using semiautomatic and manual segmentation. (a). A high correlation was observed between the VLVs obtained between both manual and automated methods ( , ) (b). A Bland-Altman analysis resulted in a mean VLV difference of  mL with lower and upper 95% limits of agreement of −30.8 mL and 38.4 mL, respectively.