Functional Evaluation After Sleeve Gastrectomy: Nuclear Scintigraphy Outperforms Volumetric Analysis

In evaluating post-sleeve gastrectomy patients, this study compared nuclear scintigraphy gastric emptying with three-dimensional multi-detector computed tomography (3D-MDCT) gastric volumetry. Poor weight loss group exhibited delayed gastric emptying compared to optimal weight loss group. Gastric emptying time correlated with weight loss parameters, while gastric volume did not. Nuclear scintigraphy, especially with a threshold of 21.2 minutes, proved highly discriminant, highlighting its potential superiority in functional assessment over volumetric analysis for identifying sleeve gastrectomy complications and suboptimal weight loss outcomes.