Title: Role of Color Assisted Duplex Sonography in Evaluation of Thyroid Diseases
Authors: Dr Anju Rajappan, Dr Sanju Rajappan
DOI: https://dx.doi.org/10.18535/jmscr/v8i8.50
Abstract
Objectives: The study evaluated the pattern including vascular patternin clinically significant thyroid diseases using color assisted duplex sonography
Methods: In this prospective study of 40 patients, with clinical thyroid diseases, color assisted duplex sonography was performed, later they underwent ultrasound guided fine needle biopsy of the lesions detected. The thyroid volume was calculated, evaluation of the sonographic pattern and Doppler examination of the thyroid gland was done. Evaluation of thyroid nodules and classification into benign and malignant nodules on the basis of sonographic patterns were also done. Pre- designed proforma were used to collect patient data, clinical findings, laboratory reports and Doppler reports. Findings of the thyroid ultrasound scan were correlated with the clinical and laboratory findings
Results: Acceptable ultrasonographic images and Doppler waveforms were obtained in allpatients. All were subjected ultrasound guided fine needle biopsy. Ultrasound was able to pick up lesions in all with a sensitivity and specificity of 100%.Ultrasound had a 100% sensitivity and specificity in detection of chronic thyroiditis. Color assisted duplex sonography was able to identify benign lesions with a sensitivity of 88% and specificity of 100%.and malignant lesions with sensitivity of 75% and specificity of 97%
Conclusion: Thyroid ultrasound is very efficient in differentiating solid from cystic lesions, solitary nodules from multinodular, diffuse enlargement from extra thyroidal lesions. It is helpful in differentiating between the malignant and benign nodules when used with certain ultrasound patterns. Color flow doppler sonography can differentiate untreated Grave’s disease from Hashimoto’s thyroiditis which has similar gray scale findings.
Keywords: Color Assisted Duplex, Evaluation Of Thyroid Diseases.
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