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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 2 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 2

From: Correlation between severity of pulmonary embolism and obstructive sleep apnea using computed tomography pulmonary artery obstruction index and right ventricular to left ventricular diameter ratio as severity indices

Fig. 2

A and B Axial and coronal post-contrast MSCT show partial occlusion in both the right and left main pulmonary arteries (arrows), this means that the number of segmental branches arising distally is 10 for each lung, and the obstruction degree is 1, so the pulmonary obstructive index will be (20 × 1/40 × 100) = 50%

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