갑상선 결절의 수술 전 전산화 단층 촬영과 초음파 검사의 효용성

다국어 초록 (Multilingual Abstract)

Background and Objectives : The thyroid nodule can be evaluated with several different diagnostic imaging techniques, of which the most commonly used are ultrasonography(US) and computed tomography(CT). This study was aimed to evaluate the clinical values of US by comparing CT with respect to imaging primary lesions, metastatic lymph nodes and invasion of adjacent structures around thyroid.
Materials and Method : Seventy one patients who underwent surgery for thyroid nodules as an initial treatment from January 2005 to 2006 were retrospective evaluated by medical record review. In each patients, the following points were documented according to their size of nodule, metastatic lymph nodes and invasion of adjacent structures around thyroid.
Results : For predicting size and multiplicity of thyroid nodules, US and CT showed a sensitivity of 67.9% and 53.6%, diagnostic accuracy of 67.9% and 53.6%. For predicting lymph node metastases, US and CT showed a sensitivity of 76.9% and 84.6%, specificity of 86.7% and 93.8%, diagnostic accuracy of 82.1% and 89.7%. For predicting invasion of adjacent structures around thyroid, US and CT showed a sensitivity of 75.0% and 83.3%, specificity of 87.5% and 81.3%, both diagnostic accuracy of 82.1%.
Conclusions : We were not able to prove the difference of the clinical values between US and CT for preoperative diagnostic purpose. US is noninvasive, nonirradiate, relatively inexpensive imaging method that visualizes the thyroid gland than CT. Thus, we can use only US as a radiologic method for diagnostic purpose in previous operation of thyroid nodules.

목차 (Table of Contents)

• I. 서 론 1
• II. 연구대상 및 방법 2
• III. 결과 3
• IV. 고 찰 6
• V. 결론 11
• VI. 참고문헌 12
• Table and legends 15