Purpose
To demonstrate diagnostic possibilities of volume CT scanning in infants and children with suspected of anomalous pulmonary venous return
(APVR) with tachycardia.
Methods and Materials
86 children at the age of 1 day to 21 months with different APVR were examined with 320-slice CT scanner for specification of anatomic type of disease.
Next protocol was used for scanning: volume scan mode,
collimation 0.5 mm x 320 [Fig.1] were used,
if necessary collimation was reduced,
tube voltage 100 kV,
tube current was calculated,
depending on body weight of the patient.
Non-ionic iodine contrast was injected at the dose of 1 ml per kilogram,
injection speed was 0,8-1,5 ml/sec.
Examinations were performed...
Results
There were no complications during anesthesia and examination.
Scan time was 1-3 seconds.
Next type of anomalous pulmonary venous
return were revealed:
• Total anomalous pulmonary venous return (TAPVR) in 31 cases:
- Supracardiac in 14 cases [Fig.2];
- Cardiac in 8 cases [Fig.3];
- Infracardiac in 6 cases [Fig.4];
- Mixed pattern in 3 cases [Fig.5].
• Partial anomalous pulmonary venous return (PAPVR) in 55 cases:
- Supracardiac in 27 cases;
- Cardiac in 18 cases;
- Infracardiac in 6 cases;
- Mixed pattern...
Conclusion
CT scanning in volume mode is high specific and sensitive method for diagnostic of anomalous pulmonary venous return in patients with tachycardia.