To confirm the insertion of dilators into veins in children, we recommend that longitudinal images of the guidewires should be initially acquired.

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The symbols°and ± were omitted because of typographic errors. The two affected sentences are listed correctly below:1. We located the pathways of the right carotid artery and IJV in each patient, using a L10-5 MHz ultrasound probe (TiTAN Ò , SonoSite Co., Tokyo, Japan), with the neck fully extended and the head turned to the left by 15-30°. 2. The mean ± SD age of the 20 patients was 16.7 ± 22.7 months; height, 74.4 ± 17.3 cm; and weight, 7.5 ± 4.1 kg. The IJV width, length, and depth values were 7.1 ± 2.7, 5.1 ± 1.4, and 7.0 ± 1.3 mm, respectively.We apologize for the errors.Reference 1 Kayashima K., Imai K., Sozen R. Longitudinal ultrasound images of guidewires placed in the internal jugular veins of children.

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