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Lung Perfusion Score System as a Mean of Evaluating Lung Function
| Largest Localized Perfusion Defect Score (DS) in Each Lung |
| 0= No defect |
| 1= Defect < 25% of one lung |
| 2= Defect 25-49% of one lung |
| 3= Defect 50-74% of one lung |
| 4= Defect 75-100% of one lung |
| Remaining Luns Perfusion Score (RLPS) |
| 1= Homogeneous |
| 2= Mild heterogeneity |
| 3= Moderate heterogeneity |
| 4= Marked heterogeneity
|
| Total Lung Perfusion Score (LPS) = Right Lung DS + Left Lung DS + RLPS = 1-12 |
