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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.