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| The clinical value of color Doppler ultrasound in detecting the changes ofthyroid parameters at different gestational period |
| LI Xiao-shu, ZHAO Wen-jing, WANG Xue-mei, LI Xiang, ZHANG Yun-fei |
| Department of Ultrasound, the First Hospital of China Medical University, Shenyang 110001, China |
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Abstract Objective: To investigate the clinical value of color Doppler ultrasound in observing the changes of thyroid ultrasound parameters at different gestational period. Methods: Fifty-three non-pregnant women were involved as the control group, in whom the thyroid function is identified normal by the ATA guidelines. Moreover 30 women in the early gestational period, 60 women in the middle gestational period, and 55 women in the late gestational period were enrolled as the study group. The thyroid size, thyroid artery diameter(D), resistance index(RI), end diastolic blood flow velocity(PDV), and systolic peak blood flow velocity(PSV) were measured with color Doppler ultrasound, statistical analysis were also performed. Results: Thyroid artery peak systolic flow velocities in different gestational period were compared with those of the control group, there were statistical difference, which increased more obviously in the early gestational period. The thyroid artery PSV was statistically lower in the late gestational period than that of the early period. The PSV and TSH levels were negatively correlated with those of different gestational period, and positively correlated with FT4, FT3 levels. Conclusion: There are no significant changes in thyroid size, thyroid artery D, and RI in different gestational period compared with those of the control group. In different gestational group, PSV is higher than that of the control group. In the late period, the PSV is lower than that in the early period. In different gestational period the increase of PSV correlated iwth FT4 and FT3.
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Received: 29 January 2013
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2013, Vol. 24 
