Researcher Compares Virtual CT Enteroscopy with Small Bowel Enteroclysis
In his study, “Comparison of Virtual CT Enteroscopy with Small Bowel Enteroclysis in Patients with Suspected Small Bowel Tuberculosis,” Naveen Kalra, MBBS, MD, MAMS, Post Graduate Institute of Medical Education & Research, Chandigarh, India, used his 2016 RSNA Research Seed Grant to compare and evaluate different diagnostic options to identify small bowel disease.
Virtual CT enteroscopy (VCTE) was performed following insufflation of carbon dioxide using a commercially available automatic insufflator via catheters placed in the jejunum and the rectum. A contrast-enhanced CT was done in the supine position followed by a delayed acquisition after five minutes. Image processing was done using the virtual colonoscopy software. Both the 2D images and the fly-through images were reviewed in all cases. Small bowel enteroclysis (SBE) was done about two hours after the VCTE.
Capsule endoscopy (CE) was performed within a two-week period. SBE showed more strictures in jejunum and ileum compared with VCTE and CE. VCTE, on the other hand, revealed a greater length of strictures in both the jejunum and the ileum compared with both SBE and CE.
Extraintestinal involvement and small bowel wall thickening and enhancement could be seen with VCTE, while small bowel ulcers could not be seen.
“This study has validated the safety and efficacy of a new modality for evaluating the small bowel,” Dr. Kalra said. “This technique results in minimal patient discomfort and the results of VCTE are comparable to SBE and CE. The small bowel thickening and enhancement on VCTE may correlate with the disease activity of small bowel tuberculosis.”