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Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
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[Application of prospective ECG-triggering dual-source CT angiography in infants and children with congenital heart

Yan-hua Duan1, Xi-ming Wang, Zhao-ping Cheng

  • 1Shandong Medical Imaging Research Institute, Medical School of Shandong University, Jinan 250021, China.

Zhonghua Yi Xue Za Zhi
|April 12, 2012
PubMed

Insights

Prospective ECG-triggering dual-source CT (DSCT) angiography accurately diagnoses complex congenital heart disease (CHD) in children. This imaging technique offers a valuable, low-dose alternative to transthoracic echocardiography (TTE) for preoperative assessment.

Area of Science:

  • Cardiovascular Imaging
  • Pediatric Cardiology
  • Radiology

Background:

  • Complex congenital heart disease (CHD) requires accurate diagnostic imaging in pediatric patients.
  • Transthoracic echocardiography (TTE) is a standard but may have limitations in visualizing complex cardiac anatomy.
  • Dual-source CT (DSCT) angiography offers potential for detailed cardiovascular visualization.

Purpose of the Study:

  • To evaluate the efficacy of prospective ECG-triggering DSCT angiography in pediatric patients with complex CHD.
  • To compare the diagnostic accuracy of DSCT angiography with TTE for complex CHD.
  • To assess the radiation dose associated with DSCT angiography in this population.

Main Methods:

  • Eighty-seven infants and children with complex CHD underwent both prospective ECG-triggering DSCT angiography and TTE.
  • Image quality was assessed using a four-point scale with inter-observer agreement analysis.
  • Diagnostic accuracy was determined by comparing imaging findings with surgical outcomes in 54 patients.

Main Results:

  • DSCT angiography identified 267 cardiovascular deformities, while TTE identified 231.
  • The accuracy of DSCT angiography was 97.69% compared to 82.08% for TTE, based on surgical confirmation.
  • The mean effective radiation dose for DSCT angiography was very low at 0.40 ± 0.08 mSv.

Conclusions:

  • Prospective ECG-triggering DSCT angiography provides accurate diagnosis of complex CHD anomalies in children.
  • This technique offers a significant advantage over TTE, particularly for preoperative assessment.
  • The low effective radiation dose makes DSCT angiography a valuable tool in pediatric cardiac imaging.
Abstract

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