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Table 2 Prevalence of coronary anomalies

From: The prevalence of coronary anomalies in a single center of Korea: origination, course, and termination anomalies of aberrant coronary arteries detected by ECG-gated cardiac MDCT

Coronary anomaly

Number of patients (n = 103, 1.16%)

Anomaly incidence among 8864 patients (%)

Constituent ratio among 103 cases (%)

Origin and course of anomalies

   

 Anomalous origin from opposite sinus, with anomalous course

   

  RCA arising from the left anterior sinus, with an interarterial course

41

0.463

39.8

  LCX arising from the right anterior sinus or RCA, with a retroaortic course

5

0.056

4.9

  LMCA arising from the right anterior sinus, with an interarterial course

1

0.011

1.0

 Multiple ostia

   

  Absent left main trunk (split origin of LCA)

10

0.112

9.7

  RCA and conus branch arising separately

7

0.080

6.8

 Single coronary ostium

1

0.011

1.0

Anomalous location of coronary ostium in the correct coronary sinus

   

 High takeoff

   

  RCA

9

0.102

8.7

  LMCA

6

0.070

5.8

  RCA and LMCA

2

0.023

1.9

 Commissural

4

0.045

3.9

 Duplication of arteries (type IV dual LAD)

4

0.045

3.9

Coronary termination anomalies (coronary artery fistulas)

   

 RCA-PA

1

0.011

1.0

 RCA-RA

1

0.011

1.0

 LAD-PA

6

0.070

5.8

 LAD-RCA

1

0.011

1.0

 LCX-bronchial artery

1

0.011

1.0

 RCA-PA and LAD-PA

3

0.034

2.9