Conclusion DDR is valuable for clinical diagnosis of the superficial esophageal carcinoma,but in some cases,DDR should be conbined with endoscope,cytology and other techniques.

• 结论直接数字成像对表浅食管癌的检出有重要的临床应用价值,但对某些病例的诊断需与内镜、细胞学检查等技术相结合。