Determinining the thrydoid volume of healthy aldult by Multi slice computer tomographyin comparision to ultrasound

ABSTRACT

Background: Currently there is a few research on thyroid volume determined by computer tomography scanner (CT-scanner)\r\n', u'Objectives: to add and to develop normal thyroid indicators by CT scanner method.\r\n', u'Subjects and method: Researchers determined thyroid volume in 45 normal persons (27 males, 18 females) in Bach Mai Hospital by Multi slice computer tomography (MSCT). The control ultrasound group has 1845 persons (living in Hanoi and Khanh Hoa. All of them were clinically tested with normal thyroid.\r\n', u'Results: The result of measurement by ultrasound and MSCT in the comparison (both two genders) as follow \r\n', u'The width of the right and left lobe of thyroid measured by ultrasound were bigger than those measured by MSCT (p<0.05 as T-test). The depth of the right and the left lobe of thyroid measured by ultrasound were smaller than those measured by MSCT (p<0.05 as T-test). The length of the right and left lobe of thyroid measured by both methods gave nearly the same result (p>0.05 as T-test). In three formulas measuring thyroid volume according to ellipse, the V3=0.479 a.b.c formula shows the results which nearly same as those by MSCT directly.\r\n', u'Conclusion: Thyroid volume measured by MSCT in this study is smaller than the result of some foreign studies (p <0.05).\r\n', u'\r\n', u'\r\n', u'