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Utility of coronary MR angiography in children with Kawasaki disease

Atsushi Takemura1, Atsuko Suzuki, Rikako Inaba

  • 1Department of Radiology, Tokyo Postal Services Agency Hospital, Chiyoda-ku, Fujimi 2-chome, 14-23, Tokyo, Japan 102-8798. atsu-papa@mm.em-net.ne.jp

AJR. American Journal of Roentgenology
|May 23, 2007
PubMed

Insights

Optimized magnetic resonance (MR) coronary angiography provides high-quality images for evaluating coronary artery issues in children with Kawasaki disease (KD). This noninvasive technique improves image clarity and detection rates, even for infants.

Area of Science:

  • Cardiovascular Imaging
  • Pediatric Cardiology
  • Medical Diagnostics

Background:

  • Coronary arterial lesions in Kawasaki disease (KD) require early evaluation.
  • Conventional X-ray coronary angiography poses significant risks for young children.
  • Noninvasive MR coronary angiography is desirable but challenging in pediatric populations.

Purpose of the Study:

  • To develop and optimize a method for high-quality MR coronary angiography in young children with KD.
  • To improve the diagnostic accuracy of noninvasive coronary imaging in pediatric KD patients.

Main Methods:

  • Utilized MR coronary angiography with vector electrocardiogram gating, real-time navigator-echo, 3D steady-state free precession.
  • Performed the technique on 35 children diagnosed with Kawasaki disease.
  • Optimized key imaging parameters including field of view, acquisition delay, turbo-field echo-factor, navigator window, and resolution for each patient.

Main Results:

  • Achieved high-resolution and high-signal-to-noise ratio images of coronary arteries.
  • Significantly enhanced image quality compared to previous methods.
  • Improved the detection rate of coronary artery segments, aiding in lesion identification.

Conclusions:

  • Optimized MR coronary angiography is a valuable tool for early detection of coronary aneurysms in Kawasaki disease.
  • The noninvasive method is effective even in infants and small children, offering a safer alternative to conventional angiography.
  • This technique enhances diagnostic capabilities for pediatric cardiovascular conditions like KD.
Abstract

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