the investigators randomly divide the eligible objects into two groups:1. objects in this group will first receive OE endoscopy observation and subsequent white light imaging(WLI) observation during oropharynx and hypopharynx; 2. objects in this group will first receive WLI observation and subsequent OE observation during oropharynx and hypopharynx. Then, the investigators will compare the detect rate of oropharyngeal and hypopharyngeal superficial squamous cell carcinoma of two groups to find if OE endoscopy can improve the detect rate of oropharyngeal and hypopharyngeal superficial squamous cell carcinoma in esophageal cancer patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
214
optical enhancement(OE)，a kind of electron straining endoscopy
the routine in the clinical practice
Qilu Hospital of Shandong University
Jinan, Shandong, China
RECRUITINGdetect rate
the detect rate of oropharyngeal and hypopharyngeal superficial squamous cell carcinoma
Time frame: 12 months
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