CT angiography is here--are we expected to see a change of angiography referral pattern?

Ariel Roguin1, Jon R Resar

  • 1Department of Medicine, Division of Cardiology, Johns Hopkins Medical Institutions, Baltimore, MD, USA. aroguin@technion.ac.il

Insights

A patient with cardiac risk factors had a normal nuclear stress test but CT angiography revealed coronary artery disease (CAD), leading to stenting. This case highlights how advanced imaging can change CAD diagnosis and treatment decisions.

Area of Science:

  • Cardiology
  • Diagnostic Imaging

Background:

  • Coronary artery disease (CAD) diagnosis relies on various imaging modalities.
  • Risk factors for CAD include hypertension, diabetes, hypertriglyceridemia, obesity, and family history.

Observation:

  • A 52-year-old asymptomatic male with multiple cardiac risk factors underwent a nuclear stress test.
  • The nuclear stress test was normal, showing no signs of ischemia or ECG changes.
  • Despite the normal stress test, the patient pursued further imaging due to anxiety.

Findings:

  • CT angiography revealed significant coronary narrowings, contradicting the nuclear stress test results.
  • Coronary angiography confirmed the findings from CT angiography, identifying treatable lesions.
  • The patient's coronary narrowings were successfully treated with stents.

Implications:

  • CT angiography can detect significant coronary artery disease (CAD) in cases where traditional stress tests are inconclusive.
  • Advanced imaging technologies like CT angiography are crucial in refining the diagnosis of CAD.
  • The findings suggest a potential shift in diagnostic algorithms for CAD, incorporating CT angiography earlier in select patient populations.

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