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Gradual Pulmonary Artery Enhancement: New Sign of Septal Defects on CT

¹ Department of Radiology, 407, Taichung Veterans General Hospital, No. 160, Section 3, Taichung Harbor Rd., Taichung, Taiwan, R.O.C.
² Faculty of Medicine, Medical College of Chung Shan Medical University, Taiwan, R.O.C.
³ Department of Medicine, National Yang Ming University, Taiwan, R.O.C.
⁴ Institute of Clinical Medicine, National Yang Ming University, Taiwan, R.O.C.
⁵ Section of Pediatric Cardiology, Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan, R.O.C.
⁶ Section of Cardiovascular Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, Taiwan, R.O.C.

OBJECTIVE. Hemodynamic information observed on serial images obtained with bolus tracking might help in diagnosing septal defects on CT. Our purpose was to qualitatively and quantitatively examine a new sign called gradual pulmonary artery enhancement.

CONCLUSION. Gradual pulmonary artery enhancement is a newly recognized CT sign that may be helpful in evaluating septal defects.

Keywords: cardiac imaging • congenital • CT angiography • CT • pediatric radiology • septal defects

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