Evaluation of the small bowel in inflammatory bowel disease

References

• Solem CA, Loftus EV Jr, Fletcher JG et al. Small-bowel imaging in Crohn’s disease: a prospective, blinded, 4-way comparison trial. Gastrointest. Endosc. 68(2), 255–266 (2008).
   PubMed Web of Science ®Google Scholar
• Bernstein CN, Greenberg H, Boult I, Chubey S, Leblanc C, Ryner L. A prospective comparison study of MRI versus small bowel follow-through in recurrent Crohn’s disease. Am. J. Gastroenterol. 100(11), 2493–2502 (2005).
   PubMed Web of Science ®Google Scholar
• Valette PJ, Rioux M, Pilleul F, Saurin JC, Fouque P, Henry L. Ultrasonography of chronic inflammatory bowel diseases. Eur. Radiol. 11(10), 1859–1866 (2001).
   PubMed Web of Science ®Google Scholar
• Drews BH, Barth TF, Hänle MM et al. Comparison of sonographically measured bowel wall vascularity, histology, and disease activity in Crohn’s disease. Eur. Radiol. 19(6), 1379–1386 (2009).
   PubMed Web of Science ®Google Scholar
• Haber HP, Busch A, Ziebach R, Stern M. Bowel wall thickness measured by ultrasound as a marker of Crohn’s disease activity in children. Lancet 355(9211), 1239–1240 (2000).
   PubMed Web of Science ®Google Scholar
• Parente F, Maconi G, Bollani S et al. Bowel ultrasound in assessment of Crohn’s disease and detection of related small bowel strictures: a prospective comparative study versus x ray and intraoperative findings. Gut 50(4), 490–495 (2002).
   PubMed Web of Science ®Google Scholar
• Migaleddu V, Quaia E, Scano D, Virgilio G. Inflammatory activity in Crohn disease: ultrasound findings. Abdom. Imaging 33(5), 589–597 (2008).
   PubMedGoogle Scholar
• Malagò R, D’Onofrio M, Mantovani W et al. Contrast-enhanced ultrasonography (CEUS) vs. MRI of the small bowel in the evaluation of Crohn’s disease activity. Radiol. Med. 117(2), 268–281 (2012).
   PubMed Web of Science ®Google Scholar
• Kim K, Johnson LA, Jia C et al. Noninvasive ultrasound elasticity imaging (UEI) of Crohn’s disease: animal model. Ultrasound Med. Biol. 34(6), 902–912 (2008).
   PubMed Web of Science ®Google Scholar
• Rustemovic N, Cukovic-Cavka S, Brinar M et al. A pilot study of transrectal endoscopic ultrasound elastography in inflammatory bowel disease. BMC Gastroenterol. 11, 113 (2011).
   PubMedGoogle Scholar
• Raptopoulos V, Schwartz RK, McNicholas MM, Movson J, Pearlman J, Joffe N. Multiplanar helical CT enterography in patients with Crohn’s disease. AJR Am. J. Roentgenol. 169(6), 1545–1550 (1997).
   PubMed Web of Science ®Google Scholar
• Ott DJ, Chen YM, Gelfand DW, Van Swearingen F, Munitz HA. Detailed per-oral small bowel examination vs. enteroclysis. Part II: radiographic accuracy. Radiology 155(1), 31–34 (1985).
   PubMedGoogle Scholar
• Bernstein CN, Boult IF, Greenberg HM, van der Putten W, Duffy G, Grahame GR. A prospective randomized comparison between small bowel enteroclysis and small bowel follow-through in Crohn’s disease. Gastroenterology 113(2), 390–398 (1997).
   PubMed Web of Science ®Google Scholar
• Minordi LM, Vecchioli A, Guidi L, Poloni G, Fedeli G, Bonomo L. CT findings and clinical activity in Crohn’s disease. Clin. Imaging 33(2), 123–129 (2009).
   PubMed Web of Science ®Google Scholar
• Colombel JF, Solem CA, Sandborn WJ et al. Quantitative measurement and visual assessment of ileal Crohn’s disease activity by computed tomography enterography: correlation with endoscopic severity and C reactive protein. Gut 55(11), 1561–1567 (2006).
   PubMed Web of Science ®Google Scholar
• Peloquin JM, Pardi DS, Sandborn WJ et al. Diagnostic ionizing radiation exposure in a population-based cohort of patients with inflammatory bowel disease. Am. J. Gastroenterol. 103(8), 2015–2022 (2008).
   PubMed Web of Science ®Google Scholar
• Desmond AN, O’Regan K, Curran C et al. Crohn’s disease: factors associated with exposure to high levels of diagnostic radiation. Gut 57(11), 1524–1529 (2008).
   PubMed Web of Science ®Google Scholar
• Kerner C, Carey K, Mills AM et al. Use of abdominopelvic computed tomography in emergency departments and rates of urgent diagnoses in Crohn’s disease. Clin. Gastroenterol. Hepatol. 10(1), 52–57 (2012).
   PubMed Web of Science ®Google Scholar
• Silva AC, Lawder HJ, Hara A, Kujak J, Pavlicek W. Innovations in CT dose reduction strategy: application of the adaptive statistical iterative reconstruction algorithm. AJR Am. J. Roentgenol. 194(1), 191–199 (2010).
   PubMed Web of Science ®Google Scholar
• Allen BC, Baker ME, Einstein DM et al. Effect of altering automatic exposure control settings and quality reference mAs on radiation dose, image quality, and diagnostic efficacy in MDCT enterography of active inflammatory Crohn’s disease. AJR Am. J. Roentgenol. 195(1), 89–100 (2010).
   PubMed Web of Science ®Google Scholar
• Kambadakone AR, Prakash P, Hahn PF, Sahani DV. Low-dose CT examinations in Crohn’s disease: impact on image quality, diagnostic performance, and radiation dose. AJR Am. J. Roentgenol. 195(1), 78–88 (2010).
   PubMed Web of Science ®Google Scholar
• Craig O, O’Neill S, O’Neill F et al. Diagnostic accuracy of computed tomography using lower doses of radiation for patients with Crohn’s disease. Clin. Gastroenterol. Hepatol. 10(8), 886–892 (2012).
   PubMed Web of Science ®Google Scholar
• Fidler JL, Guimaraes L, Einstein DM. MR imaging of the small bowel. Radiographics 29(6), 1811–1825 (2009).
   PubMed Web of Science ®Google Scholar
• Zimmermann EM, Al-Hawary MM. MRI of the small bowel in patients with Crohn’s disease. Curr. Opin. Gastroenterol. 27(2), 132–138 (2011).
   PubMed Web of Science ®Google Scholar
• Negaard A, Paulsen V, Sandvik L et al. A prospective randomized comparison between two MRI studies of the small bowel in Crohn’s disease, the oral contrast method and MR enteroclysis. Eur. Radiol. 17(9), 2294–2301 (2007).
   PubMed Web of Science ®Google Scholar
• Van Assche G, Dignass A, Panes J et al.; European Crohn’s and Colitis Organisation (ECCO). The second European evidence-based consensus on the diagnosis and management of Crohn’s disease: definitions and diagnosis. J. Crohns. Colitis 4(1), 7–27 (2010).
   PubMed Web of Science ®Google Scholar
• Van Assche G, Dignass A, Reinisch W et al.; European Crohn’s and Colitis Organisation (ECCO). The second European evidence-based consensus on the diagnosis and management of Crohn’s disease: special situations. J. Crohns. Colitis 4(1), 63–101 (2010).
   PubMed Web of Science ®Google Scholar
• Punwani S, Rodriguez-Justo M, Bainbridge A et al. Mural inflammation in Crohn disease: location-matched histologic validation of MR imaging features. Radiology 252(3), 712–720 (2009).
   PubMed Web of Science ®Google Scholar
• Oto A, Kayhan A, Williams JT et al. Active Crohn’s disease in the small bowel: evaluation by diffusion weighted imaging and quantitative dynamic contrast enhanced MR imaging. J. Magn. Reson. Imaging 33(3), 615–624 (2011).
   PubMed Web of Science ®Google Scholar
• Gonçalves SI, Ziech ML, Lamerichs R, Stoker J, Nederveen AJ. Optimization of alternating TR-SSFP for fat-suppression in abdominal images at 3T. Magn. Reson. Med. 67(3), 595–600 (2012).
   PubMed Web of Science ®Google Scholar
• Rimola J, Ordás I, Rodriguez S et al. Magnetic resonance imaging for evaluation of Crohn’s disease: validation of parameters of severity and quantitative index of activity. Inflamm. Bowel Dis. 17(8), 1759–1768 (2011).
   PubMed Web of Science ®Google Scholar
• Meisner RS, Spier BJ, Einarsson S et al. Pilot study using PET/CT as a novel, noninvasive assessment of disease activity in inflammatory bowel disease. Inflamm. Bowel Dis. 13(8), 993–1000 (2007).
   PubMed Web of Science ®Google Scholar
• Louis E, Ancion G, Colard A, Spote V, Belaiche J, Hustinx R. Noninvasive assessment of Crohn’s disease intestinal lesions with 18F-FDG PET/CT. J. Nucl. Med. 48(7), 1053–1059 (2007).
   PubMed Web of Science ®Google Scholar
• Shyn PB, Mortele KJ, Britz-Cunningham SH et al. Low-dose 18F-FDG PET/CT enterography: improving on CT enterography assessment of patients with Crohn disease. J. Nucl. Med. 51(12), 1841–1848 (2010).
   PubMed Web of Science ®Google Scholar
• Ahmadi A, Li Q, Muller K et al. Diagnostic value of noninvasive combined fluorine-18 labeled fluoro-2-deoxy-d-glucose positron emission tomography and computed tomography enterography in active Crohn’s disease. Inflamm. Bowel Dis. 16(6), 974–981 (2010).
   PubMed Web of Science ®Google Scholar
• Lenze F, Wessling J, Bremer J et al. Detection and differentiation of inflammatory versus fibromatous Crohn’s disease strictures: prospective comparison of 18F-FDG-PET/CT, MR-enteroclysis, and transabdominal ultrasound versus endoscopic/histologic evaluation. Inflamm. Bowel Dis. 16(6), 974–981 (2010).
   PubMed Web of Science ®Google Scholar
• Pullman WE, Sullivan PJ, Barratt PJ, Lising J, Booth JA, Doe WF. Assessment of inflammatory bowel disease activity by technetium 99m phagocyte scanning. Gastroenterology 95(4), 989–996 (1988).
   PubMed Web of Science ®Google Scholar
• Biancone L, Schillaci O, Capoccetti F et al. Technetium-99m-HMPAO labeled leukocyte single photon emission computerized tomography (SPECT) for assessing Crohn’s disease extent and intestinal infiltration. Am. J. Gastroenterol. 100(2), 344–354 (2005).
   PubMed Web of Science ®Google Scholar
• Almer S, Granerus G, Ström M et al. Leukocyte scintigraphy compared to intraoperative small bowel enteroscopy and laparotomy findings in Crohn’s disease. Inflamm. Bowel Dis. 13(2), 164–174 (2007).
   PubMed Web of Science ®Google Scholar
• Van Tuyl SA, Van Noorden JT, Kuipers EJ, Stolk MF. Results of videocapsule endoscopy in 250 patients with suspected small bowel pathology. Dig. Dis. Sci. 51(5), 900–905 (2006).
   PubMed Web of Science ®Google Scholar
• May A, Manner H, Schneider M, Ipsen A, Ell C. Prospective multicenter trial of capsule endoscopy in patients with chronic abdominal pain, diarrhea and other signs and symptoms (CEDAP-Plus Study). Endoscopy 39(7), 606–612 (2007).
   PubMed Web of Science ®Google Scholar
• Goldstein JL, Eisen GM, Lewis B, Gralnek IM, Zlotnick S, Fort JG; Investigators. Video capsule endoscopy to prospectively assess small bowel injury with celecoxib, naproxen plus omeprazole, and placebo. Clin. Gastroenterol. Hepatol. 3(2), 133–141 (2005).
   PubMed Web of Science ®Google Scholar
• Maiden L, Thjodleifsson B, Theodors A, Gonzalez J, Bjarnason I. A quantitative analysis of NSAID-induced small bowel pathology by capsule enteroscopy. Gastroenterology 128(5), 1172–1178 (2005).
   PubMed Web of Science ®Google Scholar
• Tukey M, Pleskow D, Legnani P, Cheifetz AS, Moss AC. The utility of capsule endoscopy in patients with suspected Crohn’s disease. Am. J. Gastroenterol. 104(11), 2734–2739 (2009).
   PubMed Web of Science ®Google Scholar
• Tukey M, Pleskow D, Legnani P, Cheifetz AS, Moss AC. The utility of capsule endoscopy in patients with suspected Crohn’s disease. Am. J. Gastroenterol. 104(11), 2734–2739 (2009).
   PubMed Web of Science ®Google Scholar
• Gralnek IM, Defranchis R, Seidman E, Leighton JA, Legnani P, Lewis BS. Development of a capsule endoscopy scoring index for small bowel mucosal inflammatory change. Aliment. Pharmacol. Ther. 27(2), 146–154 (2008).
   PubMed Web of Science ®Google Scholar
• Valle J, Alcántara M, Pérez-Grueso MJ et al. Clinical features of patients with negative results from traditional diagnostic work-up and Crohn’s disease findings from capsule endoscopy. J. Clin. Gastroenterol. 40(8), 692–696 (2006).
   PubMed Web of Science ®Google Scholar
• Girelli CM, Porta P, Malacrida V, Barzaghi F, Rocca F. Clinical outcome of patients examined by capsule endoscopy for suspected small bowel Crohn’s disease. Dig. Liver Dis. 39(2), 148–154 (2007).
   PubMedGoogle Scholar
• Levesque BG, Cipriano LE, Chang SL, Lee KK, Owens DK, Garber AM. Cost effectiveness of alternative imaging strategies for the diagnosis of small-bowel Crohn’s disease. Clin. Gastroenterol. Hepatol. 8(3), 261–267, 267.e1 (2010).
   PubMed Web of Science ®Google Scholar
• Triester SL, Leighton JA, Leontiadis GI et al. A meta-analysis of the yield of capsule endoscopy compared to other diagnostic modalities in patients with non-stricturing small bowel Crohn’s disease. Am. J. Gastroenterol. 101(5), 954–964 (2006).
   PubMed Web of Science ®Google Scholar
• Niv Y. Diagnostic value of capsule endoscopy during relapse in co-morbid irritable bowel syndrome and Crohn’s disease. Eur. J. Gastroenterol. Hepatol. 16(10), 1073–1074 (2004).
   PubMed Web of Science ®Google Scholar
• Gal E, Geller A, Fraser G, Levi Z, Niv Y. Assessment and validation of the new capsule endoscopy Crohn’s disease activity index (CECDAI). Dig. Dis. Sci. 53(7), 1933–1937 (2008).
   PubMed Web of Science ®Google Scholar
• Niv Y, Ilani S, Levi Z et al. Validation of the Capsule Endoscopy Crohn’s Disease Activity Index (CECDAI or Niv score): a multicenter prospective study. Endoscopy 44(1), 21–26 (2012).
   PubMed Web of Science ®Google Scholar
• Cheifetz AS, Kornbluth AA, Legnani P et al. The risk of retention of the capsule endoscope in patients with known or suspected Crohn’s disease. Am. J. Gastroenterol. 101(10), 2218–2222 (2006).
   PubMed Web of Science ®Google Scholar
• Tanaka S, Mitsui K, Shirakawa K et al. Successful retrieval of video capsule endoscopy retained at ileal stenosis of Crohn’s disease using double-balloon endoscopy. J. Gastroenterol. Hepatol. 21(5), 922–923 (2006).
   PubMed Web of Science ®Google Scholar
• Legnani P, Kornbluth A. Video capsule endoscopy in inflammatory bowel disease 2005. Curr. Opin. Gastroenterol. 21(4), 438–442 (2005).
   PubMed Web of Science ®Google Scholar
• Disario JA, Petersen BT, Tierney WM et al. Enteroscopes. Gastrointestinal endoscopy 66(5), 872–880 (2007).
   PubMed Web of Science ®Google Scholar
• Schulz HJ, Schmidt H. Intraoperative enteroscopy. Gastrointest. Endosc. Clin. N. Am. 19(3), 371–379 (2009).
   PubMedGoogle Scholar
• Yamamoto H, Sekine Y, Sato Y et al. Total enteroscopy with a nonsurgical steerable double-balloon method. Gastrointest. Endosc. 53(2), 216–220 (2001).
   PubMed Web of Science ®Google Scholar
• Xin L, Liao Z, Jiang YP, Li ZS. Indications, detectability, positive findings, total enteroscopy, and complications of diagnostic double-balloon endoscopy: a systematic review of data over the first decade of use. Gastrointest. Endosc. 74(3), 563–570 (2011).
   PubMed Web of Science ®Google Scholar
• May A, Färber M, Aschmoneit I et al. Prospective multicenter trial comparing push-and-pull enteroscopy with the single- and double-balloon techniques in patients with small-bowel disorders. Am. J. Gastroenterol. 105(3), 575–581 (2010).
   PubMed Web of Science ®Google Scholar
• Domagk D, Mensink P, Aktas H et al. Single- vs. double-balloon enteroscopy in small-bowel diagnostics: a randomized multicenter trial. Endoscopy 43(6), 472–476 (2011).
   PubMed Web of Science ®Google Scholar
• Akerman PA, Agrawal D, Cantero D, Pangtay J. Spiral enteroscopy with the new DSB overtube: a novel technique for deep peroral small-bowel intubation. Endoscopy 40(12), 974–978 (2008).
   PubMed Web of Science ®Google Scholar
• Khashab MA, Lennon AM, Dunbar KB et al. A comparative evaluation of single-balloon enteroscopy and spiral enteroscopy for patients with mid-gut disorders. Gastrointest. Endosc. 72(4), 766–772 (2010).
   PubMed Web of Science ®Google Scholar
• May A, Manner H, Aschmoneit I, Ell C. Prospective, cross-over, single-center trial comparing oral double-balloon enteroscopy and oral spiral enteroscopy in patients with suspected small-bowel vascular malformations. Endoscopy 43(6), 477–483 (2011).
   PubMed Web of Science ®Google Scholar
• Frieling T, Heise J, Sassenrath W, Hülsdonk A, Kreysel C. Prospective comparison between double-balloon enteroscopy and spiral enteroscopy. Endoscopy 42(11), 885–888 (2010).
   PubMed Web of Science ®Google Scholar
• Liu K, Kaffes AJ. Review article: the diagnosis and investigation of obscure gastrointestinal bleeding. Aliment. Pharmacol. Ther. 34(4), 416–423 (2011).
   PubMed Web of Science ®Google Scholar
• Manes G, Imbesi V, Ardizzone S, Cassinotti A, Pallotta S, Porro GB. Use of double-balloon enteroscopy in the management of patients with Crohn’s disease: feasibility and diagnostic yield in a high-volume centre for inflammatory bowel disease. Surg. Endosc. 23(12), 2790–2795 (2009).
   PubMed Web of Science ®Google Scholar
• Mensink PB, Aktas H, Zelinkova Z, West RL, Kuipers EJ, van der Woude CJ. Impact of double-balloon enteroscopy findings on the management of Crohn’s disease. Scand. J. Gastroenterol. 45(4), 483–489 (2010).
   PubMed Web of Science ®Google Scholar
• Sidhu R, Sanders DS, Morris AJ, McAlindon ME. Guidelines on small bowel enteroscopy and capsule endoscopy in adults. Gut 57(1), 125–136 (2008).
   PubMed Web of Science ®Google Scholar
• Fukumoto A, Tanaka S, Yamamoto H et al. Diagnosis and treatment of small-bowel stricture by double balloon endoscopy. Gastrointest. Endosc. 66(Suppl. 3), S108–S112 (2007).
   Google Scholar
• Landi B, Tkoub M, Gaudric M et al. Diagnostic yield of push-type enteroscopy in relation to indication. Gut 42(3), 421–425 (1998).
   PubMed Web of Science ®Google Scholar
• Yang R, Laine L. Mucosal stripping: a complication of push enteroscopy. Gastrointest. Endosc. 41(2), 156–158 (1995).
   PubMed Web of Science ®Google Scholar
• Manno M, Barbera C, Bertani H et al. Single balloon enteroscopy: technical aspects and clinical applications. World J. Gastrointest. Endosc. 4(2), 28–32 (2012).
   PubMedGoogle Scholar
• BuscagliaJM, DunbarKB, OkoloPI 3rd et al. The spiral enteroscopy training initiative: results of a prospective study evaluating the Discovery SB overtube device during small bowel enteroscopy (with video). Endoscopy 41(3), 194–199 (2009).
   PubMed Web of Science ®Google Scholar
• Judah JR, Draganov PV, Lam Y, Hou W, Buscaglia JM. Spiral enteroscopy is safe and effective for an elderly United States population of patients with numerous comorbidities. Clin. Gastroenterol. Hepatol. 8(7), 572–576 (2010).
   PubMed Web of Science ®Google Scholar
• Bourreille A, Ignjatovic A, Aabakken L et al.; World Organisation of Digestive Endoscopy (OMED) and the European Crohn’s and Colitis Organisation (ECCO). Role of small-bowel endoscopy in the management of patients with inflammatory bowel disease: an international OMED-ECCO consensus. Endoscopy 41(7), 618–637 (2009).
   PubMed Web of Science ®Google Scholar
• May A. Balloon enteroscopy: single- and double-balloon enteroscopy. Gastrointest. Endosc. Clin. N. Am. 19(3), 349–356 (2009).
   PubMedGoogle Scholar
• Pohl J, Blancas JM, Cave D et al. Consensus report of the 2nd International Conference on Double Balloon Endoscopy. Endoscopy 40(2), 156–160 (2008).
   PubMed Web of Science ®Google Scholar
• Lee SS, Kim AY, Yang SK et al. Crohn disease of the small bowel: comparison of CT enterography, MR enterography, and small-bowel follow-through as diagnostic techniques. Radiology 251(3), 751–761 (2009).
   PubMed Web of Science ®Google Scholar
• Borthne AS, Abdelnoor M, Rugtveit J, Perminow G, Reiseter T, Kløw NE. Bowel magnetic resonance imaging of pediatric patients with oral mannitol MRI compared to endoscopy and intestinal ultrasound. Eur. Radiol. 16(1), 207–214 (2006).
   PubMed Web of Science ®Google Scholar
• Horsthuis K, Bipat S, Bennink RJ, Stoker J. Inflammatory bowel disease diagnosed with US, MR, scintigraphy, and CT: meta-analysis of prospective studies. Radiology 247(1), 64–79 (2008).
   PubMed Web of Science ®Google Scholar
• Low RN, Francis IR, Politoske D, Bennett M. Crohn’s disease evaluation: comparison of contrast-enhanced MR imaging and single-phase helical CT scanning. J. Magn. Reson. Imaging 11(2), 127–135 (2000).
   PubMed Web of Science ®Google Scholar
• Schmidt S, Lepori D, Meuwly JY et al. Prospective comparison of MR enteroclysis with multidetector spiral-CT enteroclysis: interobserver agreement and sensitivity by means of ‘sign-by-sign’ correlation. Eur. Radiol. 13(6), 1303–1311 (2003).
   PubMed Web of Science ®Google Scholar
• Siddiki HA, Fidler JL, Fletcher JG et al. Prospective comparison of state-of-the-art MR enterography and CT enterography in small-bowel Crohn’s disease. AJR Am. J. Roentgenol. 193(1), 113–121 (2009).
   PubMed Web of Science ®Google Scholar
• Fiorino G, Bonifacio C, Peyrin-Biroulet L et al. Prospective comparison of computed tomography enterography and magnetic resonance enterography for assessment of disease activity and complications in ileocolonic Crohn’s disease. Inflamm. Bowel Dis. 17(5), 1073–1080 (2011).
   PubMed Web of Science ®Google Scholar
• Voderholzer WA, Ortner M, Rogalla P, Beinhölzl J, Lochs H. Diagnostic yield of wireless capsule enteroscopy in comparison with computed tomography enteroclysis. Endoscopy 35(12), 1009–1014 (2003).
   PubMed Web of Science ®Google Scholar
• Voderholzer WA, Beinhoelzl J, Rogalla P et al. Small bowel involvement in Crohn’s disease: a prospective comparison of wireless capsule endoscopy and computed tomography enteroclysis. Gut 54(3), 369–373 (2005).
   PubMed Web of Science ®Google Scholar
• Albert JG, Martiny F, Krummenerl A et al. Diagnosis of small bowel Crohn’s disease: a prospective comparison of capsule endoscopy with magnetic resonance imaging and fluoroscopic enteroclysis. Gut 54(12), 1721–1727 (2005).
   PubMed Web of Science ®Google Scholar
• Pasha SF, Leighton JA, Das A et al. Double-balloon enteroscopy and capsule endoscopy have comparable diagnostic yield in small-bowel disease: a meta-analysis. Clin. Gastroenterol. Hepatol. 6(6), 671–676 (2008).
   PubMed Web of Science ®Google Scholar
• Oshitani N, Yukawa T, Yamagami H et al. Evaluation of deep small bowel involvement by double-balloon enteroscopy in Crohn’s disease. Am. J. Gastroenterol. 101(7), 1484–1489 (2006).
   PubMed Web of Science ®Google Scholar
• de Ridder L, Mensink PB, Lequin MH et al. Single-balloon enteroscopy, magnetic resonance enterography, and abdominal US useful for evaluation of small-bowel disease in children with (suspected) Crohn’s disease. Gastrointest. Endosc. 75(1), 87–94 (2012).
   PubMed Web of Science ®Google Scholar
• Bremner AR, Griffiths M, Argent JD, Fairhurst JJ, Beattie RM. Sonographic evaluation of inflammatory bowel disease: a prospective, blinded, comparative study. Pediatr. Radiol. 36(9), 947–953 (2006).
   PubMed Web of Science ®Google Scholar
• Migaleddu V, Scanu AM, Quaia E et al. Contrast-enhanced ultrasonographic evaluation of inflammatory activity in Crohn’s disease. Gastroenterology 137(1), 43–52 (2009).
   PubMed Web of Science ®Google Scholar
• Hassan C, Cerro P, Zullo A, Spina C, Morini S. Computed tomography enteroclysis in comparison with ileoscopy in patients with Crohn’s disease. Int. J. Colorectal Dis. 18(2), 121–125 (2003).
   PubMed Web of Science ®Google Scholar
• Lee BF, Chiu NT, Wu DC et al. Use of 99mTc (V) DMSA scintigraphy in the detection and localization of intestinal inflammation: comparison of findings and colonoscopy and biopsy. Radiology 220(2), 381–385 (2001).
   PubMed Web of Science ®Google Scholar
• Tanner RJ, Shrimpton PC. Radiation exposure of the UK population from medical and dental x-ray examinations: publication W4. In: Radiation Exposure of the UK Population From Medical and Dental X-ray Examinations: Publication W4. Health Protection Agency, London, UK (2002).
   Google Scholar
• Hart DW. Radiation exposure of the UK population from medical and dental x-ray examinations. NRPB Report W4 (2002).
   Google Scholar
• Schmidt S, Felley C, Meuwly JY, Schnyder P, Denys A. CT enteroclysis: technique and clinical applications. Eur. Radiol. 16(3), 648–660 (2006).
   PubMed Web of Science ®Google Scholar