title: The predictive role of dual source CT for esophageal foreign bodies.
abstract: BACKGROUND
  Esophageal foreign bodies can be a danger to a patient's life. Flexible or rigid endoscopy is a commonly used type of invasive investigation for these, and radiological examinations are also useful.
  
  
  METHODS
  Series of reports.
  
  
  RESULTS
  Multi-slice spiral CT (MSCT) can confirm and locate most foreign bodies. Dual source CT (DSCT) is a more advanced technique with double speed, 20% of the radiation dosage and higher resolution, so it is more suitable for possible esophageal foreign bodies, especially in children, with no need for sedation. We provide a preliminary experiment of a DSCT scan of two fish, and we present a series of 11 cases with DSCT scans of which 5 were positive.
  
  
  CONCLUSIONS
  Timely diagnosis and accurate localization are paramount for endoscopy. DSCT is very useful for diagnosis and evaluation of esophageal foreign bodies.
authors.affiliation: Department of Otolaryngology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China. Electronic address: brother.fd@163.com.
authors.forename: Zhenghua
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: Department of Gastroenterology and Endoscopy Room, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120 China. Electronic address: dongfangliwei@163.com.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120 China. Electronic address: zhanglei4302@sina.com.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Otolaryngology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China. Electronic address: hujiongjiong@vip.sina.com.
authors.forename: Jiongjiong
authors.initials: J
authors.lastname: Hu
authors.affiliation: Department of Otolaryngology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China. Electronic address: whwangcn@gmail.com.
authors.forename: Weihua
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Otolaryngology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China. Electronic address: mzhx114@163.com.
authors.forename: Zhaoxin
authors.initials: Z
authors.lastname: Ma
mesh_terms: D003937:Diagnosis, Differential; D004945:Esophagoscopy; D004947:Esophagus; D005500:Follow-Up Studies; D005547:Foreign Bodies / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D021621:Imaging, Three-Dimensional; D061330:Multidetector Computed Tomography / Q000379:methods*; D011237:Predictive Value of Tests; D015900:Radiography, Dual-Energy Scanned Projection / Q000379:methods*