3D CT Volumetry of Varient Gastric Reservoir after Sleeve Gastrectomy and Its Relation to Clinical Outcome

Background: The role of radiology in gastric bariatric surgery is no longer limited for detection of postoperative complications, but also it extends to evaluate the role of surgical reduction of gastric size in body weight changes after surgery. The aim of this work was to assess the ability of 3D CT volumetry of variant gastric reservoir after sleeve gastrectomy and its relation to clinical outcome.

Methods: This prospective study that was carried out on 30 obese patients who was candidates for gastric sleeve surgery for the first time. All patients were subjected to clinical examinations [blood pressure, pulse rate and respiratory rate], pre-operative preparation: Blood testing, liver function, electrolytes and hormonal tests, an upper gastrointestinal (GI) endoscopy, abdominal ultrasound (US), echocardiography and CT volumetry

Results: There was no statistically significant correlation between body weight and gastric volume preoperative but a significant relation postoperative. Body weight, Body mass index (BMI) and gastric volume were significantly lower post-operative compared to pre-operative (P<0.001).

Conclusions: Computed tomography scan plays a significant role being a comprehensive imaging tool sensitive for accurate diagnosis of any suspected complication. Also, 3D CT volumetry adds more value in the evaluation of the new gastric pouch volume. In the setting of bariatric sleeve gastric surgery, MSCT volumetric assessment of the stomach is the gold standard imaging tool for evaluating gastric size in the postoperative phases.