Abstract
Imag ineprocedures such as computed tomography (CT), ultrasonography (US) are examined for predicting cervical lymphnode metastasis in head and neck cancer patients. We reviewed the criteria for metastasis and diagnostic accuracy (sensitivity, specificity and accuracy) of these diagnostic procedures in previous reports. We then discussed the efficiency of these diagnostic procedures for predicting cervical metastasis. Furthermore, our criteria and its positive predict value (PPV) and negative predict value (NPV) with CT, B-mode US and power Doppler US, and the methods of CT and US examinations in our department werere ported.
With CT, sensitivity and specificity were 49%-100%, 38%-100%, respectively. With B-mode US, sensitivity and specificity were 58%-95%, 37%-96%, respectively. With Doppler US, sensitivity and specificity were 55%-98%, 77%-100%, respectively. In the results of our study, PPV for predicting metastasis with CT was 91%. PPV for predicting metastasis with B-mode US were 97%. PPV for predicting metastasis with power Doppler US were 87%.
