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Table 1 Interpretation based on stress and rest perfusion and delayed enhancement MRI imaging

From: Assessment of myocardial abnormalities in rheumatoid arthritis using a comprehensive cardiac magnetic resonance approach: a pilot study

Stress perfusion Rest perfusion Delayed enhacement Pathophysiological implication
Non-segmental PD (+) PD (-) DE (+) Microvascular impairment with myocarditis or fibrosis
Non-segmental PD (+) PD (-) DE (-) Microvascular impairment without myocarditis and fibrosis
Segmental PD (+) PD (-) DE (-) Macrovascular impairment
Segmental PD(+) Matched PD (+) Matched DE (+) Myocardial infarction
PD (-) PD (-) DE (+): Intermediate or Subepicardial layer Myocarditis or fibrosis without micro- and macrovascular impairment
PD (-) PD (-) DE (+): Subendocardial layer Focal myocardial infarction (fibrosis) without micro- and macrovascular impairment
PD (-) PD (-) DE (-) Normal
  1. PD, perfusion defect; DE, delayed enhancement; +, present; -, absent.