Multi-detector CT enterography in active inflammatory bowel disease: Image quality and diagnostic efficacy of a low-radiation high contrast protocol(186 views) Camera L, Pezzullo F, Acampora A, Liuzzi R, Rispo A, Nardone OM, Luglio G, Bucci L, Castiglione F, Brunetti A
Department of Advanced Biomedical Sciences - Section of Diagnostic Imaging, University "Federico II", Naples, Italy. Electronic address: camera@unina.it., Institute of Biostructures and Bioimaging, National Research Council, University "Federico II", Naples, Italy., Department of Clinical Medicine and Surgery - Sections of Gastroenterology, University "Federico II", Naples, Italy., Colo-rectal Surgery, University "Federico II", Naples, Italy.,
Institute of Biostructures and Bioimaging, National Research Council, University "Federico II", Naples, Italy.
Department of Clinical Medicine and Surgery - Sections of Gastroenterology, University "Federico II", Naples, Italy.
Colo-rectal Surgery, University "Federico II", Naples, Italy.
References: Not available.
Multi-detector CT enterography in active inflammatory bowel disease: Image quality and diagnostic efficacy of a low-radiation high contrast protocol
PURPOSE: To prospectively evaluate image quality and diagnostic efficacy of a low radiation-high contrast (LR-HC) CT Enterography (CTE) in active Inflammatory Bowel Disease (IBD). MATERIALS AND METHODS: Eighty-five (36M; 49F; 17-75 yrs) patients with active IBD underwent contrast-enhanced CTE and were stratified in two groups according to age (< or ≥45 yrs): Group A (N = 45; 32 ± 9 yrs; 58 ± 10 kg) and Group B (N = 40; 58 ± 10 yrs; 61 ± 13 kg). Each group received a different amount of radiation (Noise Index, NI) and non-ionic iodinated contrast media (LOCM) as follows: Group A (NI = 15; 2.5 ml/kg) and Group B (NI = 12.5; 2 ml/kg). Thyroid functional tests were performed in all patients of group A at 4-6 wks. Signal- and contrast-to-noise ratios were calculated for liver (L) and abdominal aorta (A). Statistical analysis was performed by Student's t- or Chi-square test for continuous and categorical data, respectively. RESULTS: No patient of Group A developed signs of thyrotoxicosis. SNR(L), CNR(L) and diagnostic accuracy of CTE were 8.4 ± 1.7 vs 8.9 ± 2.1 (p = 0.256), 5.4 ± 1.5 vs 5.6 ± 1.7 (p = 0.486) and 91.1 vs 92.5% (p = 0.764) whereas the effective dose and the LOCM administered were 6.7 ± 2.2 vs 13.9 ± 6.0 mSv (p < 0.001) and 144 ± 25 vs 122 ± 25 ml (p < 0.001) for Group A and B, respectively. CONCLUSION: LR-HC CTE is a dose-effective protocol in the evaluation of active IBD in young patients.
Multi-detector CT enterography in active inflammatory bowel disease: Image quality and diagnostic efficacy of a low-radiation high contrast protocol
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