Table 2. Mean measurements of distance from reflection of skin of the external ear and scalp to right and left maximal occipital artery pulsations, and mean distance between pulsations.
PopulationROA (cm)LOA (cm)BET (cm)
Total population8.448.4210.54
Asian   
  Oriental8.578.5110.52
  Middle East8.668.5010.50
  Indian7.187.2210.04
Caucasian8.708.6111.04
African descent8.008.0011.50
Asian Female8.398.649.67

  • ROA—distance from reflection of skin of the external ear and scalp to maximal point of occipital artery pulsation at the right side

    LOA—distance from reflection of skin of the external ear and scalp to maximal point of occipital artery pulsation at the left side

    BET—distance between occipital artery pulsations