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Table 2 Measured arterial diameter and depth from the skin to the radial artery using a cross-sectional ultrasound view at the puncture site

From: A novel electromagnetic guidance ultrasound system on radial artery cannulation: a prospective randomized controlled trial

Parameter Group C
(n = 38)
Group E
(n = 38)
P value
Transverse diameter of the artery (mm) 3.5 (2.6–4.2) 3.7 (2.8–4.2) 0.578
Longitudinal diameter of the artery (mm) 2.9 (2.4–3.6) 3.2 (2.8–3.6) 0.197
Arterial depth (mm) 3.2 (2.5–4.2) 3.9 (2.6–4.8) 0.296
  1. Values are expressed as the median (interquartile)