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Erschienen in:
01.03.2015 | Cardiac
Anatomical criteria of malignancy by computed tomography angiography in patients with anomalous coronary arteries with an interarterial course
Erschienen in: European Radiology | Ausgabe 3/2015
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Purpose
We sought to determine the relation between major adverse cardiac events (MACE) and anatomical criteria assessed by coronary computed tomography angiography (CCTA) in patients with an anomalous coronary artery with an interarterial course (ACAIAC).
Material and methods
We selected CCTA studies of patients with an ACAIAC from a database of 4,160 examinations and studied anatomical criteria according to the presence of prior MACE, defined as syncope, unstable angina, myocardial infarction and resuscitated sudden cardiac death.
Results
There were 19 patients (18 males) with an ACAIAC during the study period (incidence 0.46 %). Seven patients with prior MACE were younger (26 years vs 59 years, p < 0.001), had a smaller minimal lumen area (3.6 mm2 vs 9.0 mm2, p = 0.001), a higher degree of area stenosis (57 % vs 24 %, p = 0.001), a longer interarterial course (14.7 vs 8.6 mm, p = 0.003) and a smaller proximal segment width (1.6 mm vs 2.5 mm, p = 0.02) compared with the 12 patients without prior MACE. All patients with MACE had the following concomitant anatomical characteristics: minimum lumen area ≤4 mm2, an area stenosis ≥50 % and intra-arterial length >10 mm
Conclusions
Prior MACE is associated with specific anatomical CCTA characteristics among patients with ACAIAC. CCTA may therefore contribute to distinguish patients at risk of adverse events.
Key Points
• Anomalous coronary origin may lead to adverse cardiac events in young people
• CT angiography provides high-resolution images of the anomalous coronary artery connection
• Specific CT-derived anatomical criteria are associated with major adverse cardiac events
• CT angiography helps with risk stratification in patients with anomalous coronary artery