1. Ariji Y, Kimura Y, Hayashi N, et al. Power Doppler sonography of cervical lymph nodes in patients with head and neck cancer.AJNR1998; 19:303-307
2. Chikui T, Yonetsu K, Nakamura T. Multivariate feature analysis of sonographic findings of metastatic cervical lymph nodes: contribution of blood flow features revealed by power Doppler sonography for predicting metastasis.AJNR2000; 21:561-567
3. Yonetsu K, Sumi M, Izumi M, Ohki M, Eida S, Nakamura T. Contribution of Doppler sonography blood flow information to the diagnosis of metastatic cervical nodes in patients with head and neck cancer: assessment in relation to anatomic levels of the neck.AJNR2001; 22:163-169
4. Comparison of Sonography and CT for Differentiating Benign from Malignant Cervical Lymph Nodes in Patients with Squamous Cell Carcinoma of the Head and Neck
5. Eida S, Sumi M, Yonetsu K, Kimura Y, Nakamura T. Combination of helical CT and Doppler sonography in the follow-up of patients with clinical N0 stage neck disease and oral cancer.AJNR2003; 24:312-318