Japanese Journal of Radiology

, Volume 36, Issue 9, pp 528–536 | Cite as

Simple quantification of paracardial and epicardial fat dimensions at low-dose chest CT: correlation with metabolic risk factors and usefulness in predicting metabolic syndrome

  • Chaehun Lim
  • Myeong-Im Ahn
  • Jung Im Jung
  • Kyongmin Sarah Beck
Original Article



To assess the usefulness of simple axial bi-dimensional diameters of pericardial fat tissues at low-dose chest CT, in correlation with metabolic parameters in predicting metabolic syndrome.

Materials and methods

Subjects were 373 asymptomatic individuals who performed both low-dose chest CT and abdominal fat CT for medical check-up. Maximum bi-dimensional axial diameters of paracardial fats at right (RPF) and left (LPF) cardiophrenic angle portions, and epicardial fats around right (REF) and left (LEF) coronary arteries, and coronary sinus (SEF) were measured. Correlation between pericardial fat diameters and metabolic parameters were statistically analyzed.


RPF, LPF, REF, LEF, and SEF diameters were moderately correlated with abdominal visceral fat (AVF) area (R = 0.74, 0.70, 0.48, 0.41, and 0.53, respectively, p < 0.01) in Pearson’s correlation analysis. In multiple linear regression analysis, coefficient of RPF for AVF showed highest value. Means of each PF and EF diameters in subjects with metabolic syndrome were significantly larger than those without metabolic syndrome (p < 0.001). All PF and EF diameters were well-discriminated for prediction of metabolic syndrome in ROC analysis (AUC values, from 0.696 to 0.795).


RPF diameter at low-dose chest CT would be a simple method for prediction of metabolic syndrome.


Paracardial fat Epicardial fat Pericardial fat Low-dose chest CT Abdominal visceral fat Metabolic syndrome 



Paracardial fat


PF near the right cardiophrenic angle portion


PF near the left cardiophrenic angle portion


Epicardial fat


EF at the level of proximal RCA


EF at the level of left main and proximal LAD


EF at the level coronary sinus


Pericardial fat = PF + EF



As for the acknowledgement, please note that we simply do not have acknowledgement for this submitted paper.

Compliance with ethical standards

Conflict of interest

We the authors don’t have any conflict of interest in the subject matter of this manuscript.


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Copyright information

© Japan Radiological Society 2018

Authors and Affiliations

  • Chaehun Lim
    • 1
  • Myeong-Im Ahn
    • 2
  • Jung Im Jung
    • 2
  • Kyongmin Sarah Beck
    • 2
  1. 1.Department of RadiologyMedicheck Health Care Gangnam CenterSeoulSouth Korea
  2. 2.Department of Radiology, Seoul St. Mary’s Hospital, College of MedicineThe Catholic University of KoreaSeoulSouth Korea

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