Percentage of final reports for patients aged 18 years and older undergoing CT pulmonary angiography (CTPA) with a finding of PE that specify the branching order level of the most proximal level of embolus (i.e. main, lobar, interlobar, segmental, subsegmental); AND right ventricle to left ventricle (RV/LV) ratio, when assessable. If the RV/LV ratio is ?1.0, report the specific ratio value, as this may be associated with increased risk for adverse outcomes, and if the RV/LV ratio is <1.0, report that the ratio is within normal limits, optionally including a range (e.g., 0.7-0.9) to support clinical context.