Obstruction / Occlusion, Neoplasia, Diverticula, Diagnostic procedure, Ultrasound, Oncology, Gastrointestinal tract, Abdomen
C. P. Fernandez Ruiz1, T. Ripollés2, M. J. Martinez1, D. Gomez3, E. Garcia Martinez1, L. Navarro Vilar4; 1Valencia/ES, 246007/ES, 3CO, 4Alfafar (Valencia), Va/ES
Methods and Materials
We review the radiographic studies of patients between February 2006 and June 2012,
with diagnosis established sigma stenosis in 3 ways:
• impassable stenosis by colonoscopy
• Stenosis in barium enema
• Stenosis in CT
All patients had at least one ultrasound on his radiology record and 13 morphological criteria were reviewed to see which criteria were correlated with benignancy or malignancy.
- Eccentric versus concentric stenosis.
- Thickening greater or less than 15 mm.
- Segment greater or less than 10 cm.
- Abrupt caliber change.
- Presence of folds preserved .
- Lost of layers structure.
- Thickening of the muscle layer.
- Conserved inner layers.
- Presence or absence of diverticula in the stenotic area. Fig. 9
- Regional lymphadenopathy.
- Fat stranding.
- Presence of fistula.
- Presence of collection.
Each of morphological criteria,
the final diagnosis by ultrasonography and CT were compared to the standard ,
in this case was biopsy and / or one year follow up.
Statistical analysis was performed using the Chi-square test,
and were revised: sensitivity specificity,
positive predictive value and negative predictive value.