title: Sonography of common carotid arteries' intima: media thickness in the normal adult population in Sudan.
abstract: BACKGROUND
  Carotid ultrasonography is a useful diagnostic tool for assessing carotid disease. It is highly reliable, has no radiation risk, and has no risks when compared to conventional angiography.
  
  
  OBJECTIVE
  The study was to determine the common carotid artery (CCA) intima-media thickness (IMT) in the normal adult Sudanese so as to create standards for defining abnormalities.
  
  
  METHODS
  In 440 participants, the intima-media thickness was obtained sonographically in the supine position at the point of 1 cm section distal to the carotid bulb. Due to ethnic variations, participants were divided into a five ethnic groups according to their geographic distribution in Sudan.
  
  
  RESULTS
  The ranges of IMT found in the study were from 0.04 cm to 0.07 cm in carotids. Ethnically, males and females from West and East of Sudan show the highest IMT (0.070 ± 0.00 cm and 0.065 ± 0.01 cm) for CCA while males and females from the South of Sudan show the lowest IMT (0.055 ± 0.01 cm and 0.058 ± 0.004 cm).
  
  
  CONCLUSIONS
  Mean carotids' IMT was slightly higher in females compared to males. No significant differences were found between IMT and different ethnics but significance was noted among participants' age and IMT of both sexes.
authors: Department of Radiology and Medical Imaging, Salman bin Abdulaziz University, College of Applied Medical Science, Al-Kharj, Kingdom of Saudi Arabia, Sudan ; Department of Fundamental Medical Radiologic Sciences, Sudan University of Science and Technology, College of Medical Radiological Science, Khartoum, Sudan.
authors: Mustafa Z
authors: MZ
authors: Mahmoud
keywords: Common carotid artery; Ethnic groups; Intima–media thickness; Ultrasound
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