Computed tomography and ultrasonography of metastatic cervical lymph nodes in oral squamous cell carcinoma

K. Yuasa, T. Kawazu, T. Nagata, S. Kanda, M. Ohishi, K. Shirasuna

研究成果: Contribution to journalArticle査読

33 被引用数 (Scopus)

抄録

To define criteria for CT and US in differentiating cervical lymph node metastases in oral squamous cell carcinoma (SCC). CT and/or US of 230 metastatic lymph nodes and 228 benign lymph nodes in 147 patients with oral SCC were retrospectively evaluated. The CT and US findings of each lymph node were compared with the histopathological findings. A metastasis was defined on CT as a lymph node with rim or heterogeneous enhancement, or measuring 10 mm or more in the short axis, regardless of enhancement pattern, and on US as having definite internal echoes, regardless of size, or without definite internal or hilar echoes, but measuring 10 mm or more in the short axis. A lymph node with hilar echoes or a ratio of the long to short axis (L/S ratio) of 3.5 or more was considered benign. A lymph node failing to comform to any of these categories was termed questionable. The positive predictive value (PPV) for CT was 90.8% and the negative predictive value (NPV) was 70.4%. However, 65.7% of all lymph nodes could not be classified as either metastastic or benign. PPV for US was 96.5% and NPV was 88.1%. 25.5% of all lymph nodes could not be classified as either metastatic or benign. Despite limitations in detecting metastses, by including a third category 'questionable' our criteria appear clinically more useful than other current methods based on two groups only.

本文言語英語
ページ(範囲)238-244
ページ数7
ジャーナルDentomaxillofacial Radiology
29
4
DOI
出版ステータス出版済み - 1 1 2000

All Science Journal Classification (ASJC) codes

  • 耳鼻咽喉科学
  • 放射線学、核医学およびイメージング
  • 歯科学(全般)

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