MR enterography in the evaluation of small bowel dilation

Cronin, Carmel G.; Lohan, Derek G.; Browne, Ann Michelle; Alhajeri, A.N.; Roche, Clare; Murphy, Joseph

doi:10.1016/j.crad.2009.05.007

Cited by 33 publications

(21 citation statements)

References 19 publications

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“…Dynamic MR imaging also provides information on intestinal filling and distention at narrowed segments [46]. MR imaging may detect abnormalities without contrast material, a benefit in pregnant patients and those with renal disease [47].…”

Section: Magnetic Resonancementioning

confidence: 98%

Advances in Small Bowel Imaging

Tennyson

Semrad

2011

Curr Gastroenterol Rep

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The small intestine has been difficult to examine by traditional endoscopic and radiologic techniques. Within the past 10 years, advances have led to an explosion of technologies that facilitate examination of the entire small intestine. Wireless video capsule endoscopy, deep enteroscopy using balloon-assisted or spiral techniques, computer tomography (CT) and magnetic resonance (MR) enterography have facilitated the diagnosis, monitoring, and management of patients with small intestinal diseases. These technologies are complementary, each with its advantages and limitations. Capsule endoscopy provides a detailed view of the mucosal surface and has excellent patient acceptance, but does not allow therapeutics. Deep enteroscopy allows careful inspection of the mucosa and therapeutics, but is time consuming and invasive. Enterography (CT or MR) allows examination of the small bowel wall and surrounding structures. The initial best test for detecting small intestinal disease depends on clinical presentation and an astute differential diagnosis.

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Section: Magnetic Resonancementioning

confidence: 98%

Advances in Small Bowel Imaging

Tennyson

Semrad

2011

Curr Gastroenterol Rep

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“…The modalities that mainly enable exploration of the mucosa of the small bowel are very useful in detecting small bowel lesions, and endoscopic and fluoroscopic examinations in particular are used with them. Abdominal ultrasound [14], CT and magnetic resonance (MR) imaging [15,16] are also considered useful tools. We are able to examine the functional characteristics of small bowel disorders using protein-losing tests, including 99m Tc-HSA-D scintigraphy and a 1 -antitrypsin clearance, as well as absorption tests.…”

Section: Small Bowel Disordersmentioning

confidence: 99%

Diagnosis and treatment of small bowel diseases are advanced by capsule endoscopy and double-balloon enteroscopy

Goto

2010

Clin J Gastroenterol

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In 2001, new endoscopic procedures for the small bowel, capsule endoscopy (CE) and double-balloon enteroscopy (DBE), were introduced into regular clinical practice. These methods were significant breakthroughs for imaging examination of the small bowel. The methods have different characteristics with regard to their approach into the target organ; however, common to both is the feature of enabling rapid total observation of the small bowel. CE is the first safe, non-invasive well-tolerated procedure and can be performed in any condition. The examination time is about 8 h and the patient can spend the time freely. CE can demonstrate active bleeding or neoplasm in the small bowel, which other modalities cannot detect. DBE, which was developed by Yamamoto, employs two balloons combined with an overtube and allows deeper insertion into the small bowel, and can be a modality for examination of the entire small bowel with combined oral and anal approaches. This modality enables biopsy specimens to be taken, polyps to be resected and hemostatic procedures to be performed throughout the small bowel. The understanding of small bowel disease is being extended by using CE and DBE for diagnosis. CE is considered to be superior for the first examination of the small bowel and DBE is useful for detailed examination and endoscopic therapy. Further clinical study of unknown small bowel disorders using these two modalities and algorithms for the management of small bowel disorders are required.

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“…Therefore chronic post-radiation changes in the small bowel may appear as thickened wall and narrowed adherent, fixed bowel loops in a previous radiation field (Fig. 14) [34–36]. It may be difficult to differentiate radiation-induced changes from inflammatory and malignant conditions or adhesions, but fixed bowel loops and the lack of a mass in an area of previous radiotherapy are highly suggestive of radiation enteritis [36].…”

Section: Imaging Findingsmentioning

confidence: 99%

“…14) [34–36]. It may be difficult to differentiate radiation-induced changes from inflammatory and malignant conditions or adhesions, but fixed bowel loops and the lack of a mass in an area of previous radiotherapy are highly suggestive of radiation enteritis [36]. Malignancy may be suspected when mass-like thickening and lymph node enlargement are detected.…”

Section: Imaging Findingsmentioning

confidence: 99%