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Fig. 4B. —Results of statistical analysis of three radiologists shown
as mean (•) ± 2 SD (whiskers). A, B, and C are qualified
radiologists. Radiologist A is highly experienced in 3D building, B and C are
not. Br = conventional virtual bronchoscopy, PA = enhanced virtual
bronchoscopy using pulmonary artery. Graph shows no significant difference
among three radiologists regarding limit of bronchial order, average of which
was 7.5. Significant difference was found between radiologist A and other two
radiologists regarding limit of pulmonary arterial order: 11.8 order,
radiologist A; 9.8 order, radiologist B; and 9.2 order, radiologist C.
