Diagnosis of obscure gastrointestinal hemorrhage with capsule endoscopy in combination with multiple‐detector computed tomography

Abstract

To demonstrate the clinical efficacy of combination capsule endoscopy (CE) and multiple-detector computed tomography (MDCT) diagnostic imaging in the identification of gastrointestinal hemorrhages. In the present study, 123 patients with gastrointestinal hemorrhages of obscure origin (GHOO) were examined with CE in combination with MDCT. The results were compared with findings of surgical pathology. Of the 123 patients, 57.72% (71/123) of the patients exhibited positive CE findings compared with 30.08% (37/123) on MDCT alone (P < 0.01). When used in combination, 65.85% (81/123) of patients scored positively. The detection rate due to the combination of diagnostic imaging was significantly higher than that of MDCT alone (P < 0.01), but was not significantly higher than that of CE alone (P > 0.05). Integrating the two diagnostic platforms improved the diagnosis of stromal tumors, hemangioma, Crohn's disease, vascular anomaly, Meckel's diverticulum, and ancylostomiasis. There was no significant difference in the positive detection rate between CE and MDCT when confirmed by surgical pathology. The contribution of CE is critical in the diagnosis of GHOO, given the fact that there is a significant difference in the detection rate between CE and MDCT, but there is no significant difference in the rate between CE plus MDCT and CE alone.