›› 2011, Vol. 31 ›› Issue (4): 458-.doi: 10.3969/j.issn.1674-8115.2011.04.017

• Original article (Clinical research) • Previous Articles     Next Articles

Comparison of quality intima-media thickness and high-resolution ultrasound in evaluation of carotid intima-media thickness in children

JIN Ye1, CHEN Ya-qing1, TANG Qing-ya2, LI Wen-ying1, JIANG Jun1   

  1. 1.Department of Medical Ultrasound, 2.Clinical Nutrition Center, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
  • Online:2011-04-28 Published:2011-04-28
  • Supported by:

    Shanghai Municipal Health Bureau Foundation, 2009062

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Abstract:

Objective To compare the reliability of high-resolution ultrasound and quality intima-media thickness (QIMT) in evaluation of carotid intima-media thickness (IMT) in children. Methods Bilateral carotid IMT measurements were conducted in 32 children by two doctors of Department of Medical Ultrasound with QIMT and high-resolution ultrasound. Results The mean differences of carotid IMT of QIMT were -0.00 mm for the left and -0.01 mm for the right, and those of high-resolution ultrasound were -0.09 mm for the left and -0.11 mm for the right. The intra-class coefficients of highresolution ultrasound were 0.335 for the left and 0.415 for the right, and those of QIMT were 0.808 for the left and 0.875 for the right. Bland-Altman analysis indicated better interobserver reproducibility for QIMT. Conclusion Under standardized measurement conditions, QIMT may yield favourable interobserver reproducibility, and can measure carotid IMT accurately.

Key words: carotid intima-media thickness, quality intima-media thickness, reproducibility, mean difference, intra-class coefficient, Bland-Altman plot