European Radiology

, Volume 23, Issue 2, pp 388–399 | Cite as

Helical CT-enteroclysis in the detection of small-bowel tumours: a meta-analysis

  • Philippe Soyer
  • Mounir Aout
  • Christine Hoeffel
  • Eric Vicaut
  • Vinciane Placé
  • Mourad Boudiaf
Gastrointestinal

Abstract

Objective

To perform a meta-analysis to determine sensitivity and specificity estimates of helical CT-enteroclysis in the detection of small-bowel tumours.

Methods

A search for relevant articles published from January 1992 to November 2010 was performed. Study design, patient characteristics and 2 × 2 contingency tables were recorded for eligible studies. Heterogeneity was assessed with the I 2 statistic. A bivariate generalised linear random-effects model was used to summarise sensitivity and specificity estimates for small-bowel tumour detection on a per-patient basis. Sensitivity and specificity estimates were compared in different subgroups.

Results

Twelve studies (696 patients) were eligible. The mean small-bowel tumour prevalence was 22.6 % (range 7.7–45.8 %). Inter-study heterogeneity was substantial for sensitivity (I 2 = 66.9 %; 95 % CI 28.7–88.5 %) and low for specificity (I 2 = 10.6 %; 95 % CI 0.0–55.0 %). On a per-patient basis, pooled sensitivity was 92.8 % (95 % CI 71.3–98.5 %) and pooled specificity 99.2 % (95 % CI 94.2–99.9 %) for the diagnosis of small-bowel tumour. Subgroup analysis revealed that small-bowel preparation, more than one imaging pass and large volumes (≥2 L) of enteral contrast agent did not improve tumour detection.

Conclusion

Our meta-analysis confirms that helical CT-enteroclysis has high degrees of sensitivity and specificity for small-bowel tumour detection. However, our findings reinforce the need for more standardised individual studies.

Key Points

Helical CT-enteroclysis is highly sensitive for the diagnosis of small-bowel tumours.

Helical CT-enteroclysis is highly specific for the diagnosis of small-bowel tumours,

Helical CT-enteroclysis can be used as a first-line investigation.

A single enteric phase examination provides optimal tumour detection.

Keywords

CT-enteroclysis Small bowel tumors Meta-analysis Systematic review Diagnostic accuracy 

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Copyright information

© European Society of Radiology 2012

Authors and Affiliations

  • Philippe Soyer
    • 1
    • 2
  • Mounir Aout
    • 3
  • Christine Hoeffel
    • 4
  • Eric Vicaut
    • 2
    • 3
  • Vinciane Placé
    • 1
    • 2
  • Mourad Boudiaf
    • 1
  1. 1.Department of Abdominal ImagingHôpital Lariboisière, Assistance Publique-Hôpitaux de ParisParis cedex 10France
  2. 2.Université Paris-DiderotParisFrance
  3. 3.Clinical Research UnitHôpital Lariboisière, Assistance Publique-Hôpitaux de ParisParis cedex 10France
  4. 4.Department of RadiologyHôpital Robert DebréReims CedexFrance

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