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对１２例累及颈动脉系统的晚期喉癌、下咽癌颈部转移淋巴结进行Ｂ超和ＣＴ扫描的对比研究，发现Ｂ超在颈动脉系统受累程度的评价上，敏感性达１００％，较ＣＴ有明显的优势。１２例患者Ｂ超检查结果和手术中发现基本一致，从而使手术将颈动脉安全地保护的前提下，彻底切除了颈部转移灶。提示Ｂ超检查是评价颈动脉是否受累的可靠检查之一，因其具备价格便宜、检查便利等特点，应进一步推广应用。
A comparative study of 12 cases of advanced laryngeal and hypopharyngeal carcinoma metastatic lymph nodes involving the carotid system using B-ultrasonography and computed tomography scans revealed that the sensitivity of B-mode ultrasonography in carotid system involvement was 100%. There are obvious advantages. The B-ultrasound results of 12 patients were basically the same as those found during the operation, so that the cervical metastases were completely removed under the premise of safely protecting the carotid artery. Tip B-ultrasound is one of the reliable tests to evaluate whether the carotid artery is affected. Because it has the characteristics of cheap price and convenient inspection, it should be further promoted and applied.