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Journal of Thyroid Research
Volume 2011, Article ID 935141, 4 pages
Clinical Study

Local Reference Ranges of Thyroid Volume in Sudanese Normal Subjects Using Ultrasound

1College of Medical Radiologic Science, Sudan University of Science and Technology, Baladya Street, P.O. Box 1908, Khartoum 11111, Sudan
2College of Radiology and Nuclear Medicine, The National Ribat University, Nile Street, Burri, P.O. Box 55, Khartoum 11111, Sudan
3Radiation and Isotope Center, Khartoum (RICK), Algaser Street, P.O. Box 846, Khartoum 11111, Sudan

Received 29 June 2011; Revised 30 July 2011; Accepted 31 July 2011

Academic Editor: Fausto Bogazzi

Copyright © 2011 Mohamed Yousef et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study aimed to establish a local reference of thyroid volume in Sudanese normal subjects using ultrasound. A total of 103 healthy subjects were studied, 28 (27.18%) females and 75 (72.82%) males. Thyroid volume was estimated using ellipsoid formula. The mean age and range of the subjects was 21.8 (19–29) years; the mean body mass index (BMI) was 22.3 (16.46–26.07) kg/m2. The overall mean volume ± SD volume of the thyroid gland for both lobes in all the patients studied was 6.44 ± 2.44 mL. The mean volume for both lobes in females and males were 5.78 ± 1.96 mL and 6.69 ± 2.56 mL, respectively. The males' thyroid volume was greater than the females'. The mean volume of the right and left lobes of the thyroid gland in males and females were 3.38 ± 1.37 mL and 3.09 ± 1.24 mL, respectively. The right thyroid lobe volume was greater than the left. The values obtained in this study were lower than those reported from previous studies.