Keywords:
Cardiovascular system, Paediatric, Pulmonary vessels, CT-Angiography, CT, Diagnostic procedure, Computer Applications-3D, Contrast agent-intravenous, Congenital
Authors:
L. Musayeva, A. Ahmadova, I. Musayeva; Baku/AZ
DOI:
10.26044/ecr2019/C-0566
Methods and materials
20 patients with various congenital heart diseases (2 newborns,
4 infants,
12 toddlers/teens and 2 adults,
gender 45 % (male) vs.
55 % (female)) were included in study.
Echocardiography was an initial diagnostic tool in all 20 cases.
Poor acoustic window and complexity of cardiovascular anomalies in most of the cases associated with heterotaxy syndrome in two of them were found to be important factors responsible for decrease of echocardiography’s sensitivity in assessment of pulmonary arteries.
All pediatric patients had undergone thorax- CTA under sedation with special pediatric protocol (80-100 KV,
25-50 mA).
ECG-gating was not applied in most of pediatric patients due to limitations. Immobilization and continuous monitoring of pulse oximetry and heart rate were performed during sedation. For adult patient the standard CTA protocol with prospective ECG-synchronization and dose modulation technique was applied.
Non-ionic contrast agent (1-2 mL/kg) was injected at 0,8 -3 ml/s rate via small- to middle-ganged catheters at different sites,
real time contrast bolus tracking was used.
Simultaneous assessment of visceral situs,
vessels and other organ systems were performed by using three-dimensional volume rendering technique,
multiplanar reformations (MPR) and two-dimensional maximum intensity projection (MIP) reconstructs in sagittal,
coronal and axial views.