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CT enteroclysis: Multidetector technique (MDCT) versus single-detector technique (SDCT) in patients with suspected small-bowel Crohn’s disease

TC-enteroclisi: tecnica multidetettore (TCMD) versus tecnica a singolo detettore (TCSD) in pazienti con sospetto morbo di Crohn dell’intestino tenue

  • Abdominal Radiology Radiologia Addominale
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Abstract

Purpose

This study was done to evaluate the diagnostic role of enteroclysis with multidetector computed tomography (MDCT) and single-detector CT (SDCT) in patients affected by small-bowel Crohn’s disease.

Materials and methods

Forty-five patients underwent abdominal SDCT (n=20) or 16-row MDCT (n=25) after administration of methylcellulose by nasojejunal tube. Each examination was assessed for small-bowel distension and site and characteristics of the diseased loops. The two CT techniques were then compared. Results were compared with double-contrast enteroclysis performed in all patients and with ileoscopy performed in 28 patients.

Results

In comparison with double-contrast enteroclysis, sensitivity, specificity and diagnostic accuracy were 90%, 71% and 89% for SDCT and 92%, 83% and 90% for MDCT. Ileoscopy confirmed the absence of disease in five patients and the presence of Crohn’s disease in 20. Compared with SDCT, MDCT reduced scanning time and respiratory artefacts and permitted better multiplanar reconstructions.

Conclusions

MDCT is superior to SDCT because it allows a better spatial resolution and improves depiction of the pathological patterns of Crohn’s disease.

Riassunto

Obiettivo

Valutare il ruolo diagnostico dell’enteroclisi-TC multidetettore (TCMD) e singolo detettore (TCSD) in pazienti con morbo di Crohn dell’intestino tenue.

Materiali e metodi

Quarantacinque pazienti sono stati sottoposti ad enteroclisi-TC a singolo detettore (n=20) o multidetettore (n=25) previa somministrazione di metilcellulosa tramite sondino naso-digiunale. Abbiamo valutato grado di distensione delle anse, sede e caratteristiche delle anse patologiche, ed abbiamo messo a confronto le due tecniche. I risultati sono stati confrontati con quelli del clisma del tenue in tutti i pazienti, con l’ileoscopia in 28.

Risultati

Confrontando i dati TC con quelli del clisma del tenue, abbiamo riscontrato valori di sensibilità, specificità ed accuratezza diagnostica rispettivamente del 90%, 71% e 89% con la TCSD e del 92, 83 e 90% con la TCMD. L’ileoscopia ha confermato i reperti di normalità in 5 pazienti e un morbo di Crohn in 20. La TCMD è risultata superiore alla TCSD poiché ha permesso di ottenere una riduzione dei tempi di esecuzione, meno artefatti respiratori e ricostruzione multiplanari di migliore qualità rispetto alla TCSD.

Conclusioni

La TCMD è da preferire alla TCSD per la sua migliore risoluzione spaziale e perché consente una migliore rappresentazione dei segni patologici di malattia di Crohn.

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Authors and Affiliations

  1. Dipartimento di Bioimmagini e Scienze Radiologiche, Istituto di Radiologia, Università Cattolica del Sacro Cuore, L. go A. Gemelli 8, I-00168, Roma, Italia

    L. M. Minordi, A. Vecchioli, G. Poloni & L. Bonomo

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  1. L. M. Minordi
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  2. A. Vecchioli
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  3. G. Poloni
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  4. L. Bonomo
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Correspondence to L. M. Minordi.

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Minordi, L.M., Vecchioli, A., Poloni, G. et al. CT enteroclysis: Multidetector technique (MDCT) versus single-detector technique (SDCT) in patients with suspected small-bowel Crohn’s disease. Radiol med 112, 1188–1200 (2007). https://doi.org/10.1007/s11547-007-0215-8

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  • DOI: https://doi.org/10.1007/s11547-007-0215-8

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