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Table 1 Characteristics of included studies

From: Endoscopic imaging modalities for diagnosing invasion depth of superficial esophageal squamous cell carcinoma: a systematic review and meta-analysis

Reference number Year Sample size Modality Image enhancement Classification EUS method EUS frequencies, MHz Confirmatory study
25 1997 74 Non-ME Non - - - Esophagectomy/ER
26 2010 236 Non-ME Non - - - Esophagectomy/ER
27 2015 49 Non-ME/ME NBI Arima and Inoue - - Esophagectomy/ER
28 1998 30 ME Non Arima - - Esophagectomy/ER
29 2002 79 ME Non Inoue - - Esophagectomy/ER
30 2006 12 ME Non Inoue - - ER
31 2010 510 ME FICE Arima - - Esophagectomy/ER
32 2014 220 ME NBI JES - - ER
33 2014 249 ME NBI JES - - ER
34 2014 464 ME NBI JES - - Esophagectomy/ER
35 1995 40 EUS - - Radial and/or mini-probe 7.5,12,20 Esophagectomy/ER
36 2006 40 EUS - - Mini-probe 20 Esophagectomy/ER
37 2006 132 EUS - - Radial and/or mini-probe 7.5,10,20 Esophagectomy/ER
38 2011 145 EUS - - Mini-probe 20,30 Esophagectomy/ER
  1. Non-ME non-magnified endoscopy; ME magnified endoscopy; EUS endoscopic ultrasound; IE Image enhancement method; FICE FUJI Intelligent Color Enhancement system; NBI Narrow band imaging system; Arima Arima’s classification; Inoue Inoue’s classification; JES Japan esophageal society classification; ER endoscopic resection