Why the study?
Traditional scoring systems like the Modified or Refined Miller Score estimate thrombus burden in acute pulmonary embolism but tend to oversimplify partial vessel occlusion.
Does the Obstruction Index (OI) correlate better with RV/LV ratio reduction than MMS or RMS in patients with intermediate- to high-risk acute pulmonary embolism?
Does the Obstruction Index (OI) correlate better with RV/LV ratio reduction than MMS or RMS in patients with intermediate- to high-risk acute pulmonary embolism?
A novel Obstruction Index derived from CTPA direct thrombus and vessel area measurements correlates better with RV/LV ratio reduction than traditional scoring systems in acute pulmonary embolism.
May aid RV recovery assessment in acute PE; hypothesis-generating and requires prospective validation before clinical adoption.
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Buk et al. (2025) studied this question.
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