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作者报告了ＤＳＡ技术在２０例颌面部肿瘤诊断与治疗中的应用，并就其临床应用价值进行讨论。笔者认为，本技术具有选择性强、安全可靠、并发症少等特点，可在具有一定条件的医疗单位推广应用。
The authors report the DSA technique in the diagnosis and treatment of maxillofacial tumors in 20 cases and discuss its clinical value. The author believes that the technology has the characteristics of strong selectivity, safety and reliability, less complications, and can be popularized and applied in medical units with certain conditions.