MDCT enteroclysis urography with split-bolus technique provides information on ureteral involvement in patients with suspected bowel endometriosis.
AJR Am J Roentgenol
; 196(5): W635-40, 2011 May.
Article
en En
| MEDLINE
| ID: mdl-21512056
ABSTRACT
OBJECTIVE:
The objective of our study was to evaluate the accuracy of MDCT enteroclysis with a split-bolus technique in detecting ureteral compression caused by endometriosis in women with suspected bowel endometriosis. SUBJECTS ANDMETHODS:
This prospective study included 103 patients with suspected bowel endometriosis. Examinations were performed on a 16-MDCT scanner; 20% of the IV contrast material was administered during colonic distention and intestinal hypotonization (i.e., 7-8 minutes before starting volumetric acquisition). After injection of the remaining quantity of contrast material, the volumetric acquisition was performed during the portal phase of contrast enhancement.RESULTS:
The sensitivity of MDCT enteroclysis urography in identifying bowel nodules was 95.5%; specificity, 97.2%; positive predictive value (PPV), 98.5%; negative predictive value (NPV), 92.1%; accuracy, 96.1%; positive likelihood ratio, 34.39; and negative likelihood ratio, 0.05. The opacification was poor in 8.2% of the ureters, sufficient in 17.4%, and good in 74.4%. One hundred ninety-one ureters (92.3%) were opacified between the crossing of the iliac vessels and the bladder. Compression was observed at MDCT enteroclysis urography in 36 ureters (17.4%); surgery confirmed the presence of ureteral compression in 34 ureters (16.4%). The sensitivity of MDCT enteroclysis urography in identifying ureteral compression was 97.1%; specificity, 98.8%; PPV, 94.4%; NPV, 99.4%; accuracy, 99.0%; positive likelihood ratio, 83.54; and negative likelihood ratio, 0.03.CONCLUSION:
MDCT enteroclysis urography allows radiologists to determine whether bowel endometriosis and ureteral compression are present without increasing the radiation dose imparted to the patient.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Enfermedades Ureterales
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Urografía
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Tomografía Computarizada por Rayos X
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Medios de Contraste
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Endometriosis
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Enfermedades Intestinales
Tipo de estudio:
Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Adult
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Female
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Humans
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Middle aged
Idioma:
En
Año:
2011
Tipo del documento:
Article