Gastrointestinal
Gastric band
Phi angle
30-60°
Fluoroscopy
Radiography
Angle between the vertical axis and the gastric band.
Reference
Blachar A, Blank A, Gavert N et-al. Laparoscopic adjustable gastric banding surgery for morbid obesity: imaging of normal anatomic features and postoperative gastrointestinal complications. AJR Am J Roentgenol. 2007;188 (2): 472-9.
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