Multidetector CT in small-bowel neoplasms

Minordi, Laura Maria; Vecchioli, A; Mirk, Paoletta; Filigrana, E.; Poloni, Giuliana; Bonomo, Lorenzo

doi:10.1007/s11547-007-0202-0

Cited by 19 publications

(14 citation statements)

References 27 publications

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“…Low-density agents are preferred because they allow better depiction of wall enhancement between the hypodensity of the intraluminal fluid and the hypodensity of the extraluminal fat. Proposed low-density contrast agents are water, air, oil emulsion, 0.1% barium sulphate or PEG for oral use and methylcellulose or water via nasojejunal tube [8][9][10][11][12][13][14][15]. We chose methylcellulose for Fig.…”

Section: Discussionmentioning

confidence: 99%

“…In the ileoscopy (b) ileal mucosa shows erythema. Erosions and ulcers are also present enteroclysis CT and PEG for enterography CT; methylcellulose is already widely employed both in small-bowel enema and in CT [10][11][12][13][14][15]; PEG is mainly used in MRI [16,17] and more rarely in CT [14,18]. The choice of PEG was based on the fact it is a well-known solution in widespread use for the preparation of endoscopic studies.…”

Section: Discussionmentioning

confidence: 99%

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Enteroclysis CT and PEG-CT in patients with previous small-bowel surgical resection for Crohn’s disease: CT findings and correlation with endoscopy

Minordi¹,

Vecchioli²,

Poloni³

et al. 2009

Eur Radiol

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The aim of this study was to evaluate the accuracy of multidetector CT in patients with Crohn's disease (CD) relapse after ileocolic resection compared with endoscopy. Thirty-four patients were studied by endoscopy and multidetector CT, after oral administration of polyethylene glycol solution (n = 21) or after administration of methylcellulose via nasojejunal tube (n = 13). In CT examinations we evaluated the presence of mural thickening, target sign, perienteric stranding, comb sign, fibrofatty proliferation and complications. Endoscopic results were classified in accordance with Rutgeerts score (from 0 to 4). The statistical evaluations were carried out by using Fisher's exact text and chi (2) testing (p < 0.05, statistically significant difference). Sensitivity, specificity and accuracy of the CT were 96.9%, 100% and 97%, respectively. We found a statistically significant correlation between an endoscopic score of 4 and the CT signs of target sign, perienteric stranding, comb sign and fibrofatty proliferation, and between scores 1 and 2 and mucosal hyperdensity without or with mural thickening, respectively (p < 0.05). Moreover, only CT identified the presence of jejunal and proximal ileum disease in two and three patients, respectively, and fistulas in three patients. CT is a reliable method in the diagnosis of CD relapse and shows agreement with the approved endoscopic Rutgeerts score.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Enteroclysis CT and PEG-CT in patients with previous small-bowel surgical resection for Crohn’s disease: CT findings and correlation with endoscopy

Minordi¹,

Vecchioli²,

Poloni³

et al. 2009

Eur Radiol

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“…Histologically, metastases are typically submucosal or subserosal and are easy to distinguish from primary tumours; nevertheless, immunohistochemistry may also help to differentiate primary cancer from metastases ( Figure 18). Metastatic spread to the small bowel usually appears as a smooth, round or polypoid mass with the ''target'' aspect of an ulcerated lesion that may result in intussusception or occlusion [22,56] (Figure 19). Metastases in the small bowel can also occur as extramural nodules following intraperitoneal seeding especially from primary mucinous tumours (ovaries, appendix and colon).…”

Section: Metastasesmentioning

confidence: 99%

Malignant tumours of the small intestine: a review of histopathology, multidetector CT and MRI aspects

Anzidei¹,

Napoli²,

Zini³

et al. 2011

BJR

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ABSTRACT. Small bowel neoplasms, including adenocarcinoma, carcinoid tumour, lymphoma and gastrointestinal stromal tumours, represent a small percentage of gastrointestinal cancers, yet are among those with the poorest prognosis compared with other gastrointestinal malignancies. Unclear clinical scenarios and difficult radiological diagnosis often delay treatment with negative effects on patient survival. Recently, multidetector CT (MDCT) and MRI have been introduced as feasible and accurate diagnostic techniques for the identification and staging of small bowel neoplasms. These techniques are gradually replacing conventional barium radiography as the tool of choice. However, the inherent technical and physiological challenges of small bowel imaging require a familiarity with patient preparation and scan protocols. Adequate knowledge of the histopathology and natural evolution of small bowel neoplasms is also important for differential diagnosis. The aim of this article is to review MDCT and MRI protocols for the evaluation of small bowel tumours and to provide a concise yet comprehensive guide to the most relevant imaging features relative to histopathology.

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“…On T1-weighted images, it has low or intermediate signal intensity. On T2-weighted images, it has heterogeneous high signal intensity [18][19][20] (Figure 2). …”

Section: Stromal Tumormentioning

confidence: 99%

New progress in CT and MRI examination and diagnosis of small intestinal tumors

Miao

Wang²,

Tang³

2010

WJGO

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Precise examination and diagnosis of small intestinal tumors is difficult because of the curved course and overlapping canal of the small intestine. Traditional technology for intestinal canal examination and endoscopy cannot exhibit the intestinal wall and extra-luminal structure well. With the development and advancement of multi-slice spiral computed tomography and magnetic resonance imaging (MRI), computed tomography enteroclysis (CTE) and magnetic resonance enteroclysis (MRE) are widely used in the examination and diagnosis of small intestinal tumors. CTE and MRE, with three-dimensional imaging capabilities and excellent soft-tissue contrast, can analyze the abnormalities of peripheral intestinal structure as well as the tunica mucosa. In addition, these two technologies can clearly reveal the localization, appearance, degree of mesenteric infiltration and remote tumor metastasis, which increases our cognition of the imaging diagnosis for intestinal tumors. Here we review recent progress in imaging (CT and MRI) examination and diagnosis of small intestinal tumors.

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Multidetector CT in small-bowel neoplasms

Abstract: MDCT performed after bowel-loop distension with low-density contrast material and IV administration of iodinated contrast agent is a reliable method for diagnosing and staging small-bowel neoplasms.

Cited by 19 publications

References 27 publications

Enteroclysis CT and PEG-CT in patients with previous small-bowel surgical resection for Crohn’s disease: CT findings and correlation with endoscopy

Enteroclysis CT and PEG-CT in patients with previous small-bowel surgical resection for Crohn’s disease: CT findings and correlation with endoscopy

Malignant tumours of the small intestine: a review of histopathology, multidetector CT and MRI aspects

New progress in CT and MRI examination and diagnosis of small intestinal tumors

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