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Diagnostic Validity and Reliability of Low-Dose Prospective ECG-Triggering Cardiac CT in Preoperative Assessment of

Yassir Edrees Almalki1, Mohammad Abd Alkhalik Basha2, Sharifa Khalid Alduraibi3

  • 1Division of Radiology, Department of Internal Medicine, Medical College, Najran University, Najran 61441, Saudi Arabia.

Children (Basel, Switzerland)
|December 23, 2022
PubMed

Insights

Low-dose prospective ECG-gated cardiac CT (CCT) offers a reliable method for diagnosing complex congenital heart diseases (CHDs) preoperatively. This advanced imaging technique provides high accuracy with reduced radiation exposure, aiding in surgical planning.

Area of Science:

  • Cardiology
  • Radiology
  • Medical Imaging

Background:

  • Complex congenital heart diseases (CHDs) require precise preoperative evaluation.
  • Minimizing radiation dose exposure is crucial, especially in pediatric patients.
  • Cardiac CT (CCT) is a valuable tool for cardiac imaging.

Purpose of the Study:

  • To assess the diagnostic validity and reliability of low-dose prospective ECG-gated CCT.
  • To evaluate the effectiveness of this method in complex CHDs.
  • To determine radiation dose metrics for this protocol.

Main Methods:

  • Prospective study including 42 patients with complex CHDs.
  • Low-dose prospective ECG-gated cardiac CT (CCT) performed preoperatively.
  • Independent image interpretation by two radiologists, validated against post-operative data.

Main Results:

  • Mean effective radiation dose was 0.58 ± 0.13 mSv.
  • High diagnostic performance: sensitivity (92.6-95.6%), specificity (97-98%), and accuracy (95.2-97%).
  • Good inter-reader agreement (κ = 0.74) for CCT interpretation.

Conclusions:

  • Low-dose prospective ECG-gated CCT is a valid and reliable method for preoperative assessment of complex CHDs.
  • This technique enables precise diagnosis with reduced radiation exposure.
  • It is particularly useful for evaluating coronary arteries in pediatric patients with CHDs.

Keywords:
cardiac CTcomplex CHDslow-doseprospective ECG-gated

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