European radiology
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Comparative Study
Comparison of MR enteroclysis with MR enterography and conventional enteroclysis in patients with Crohn's disease.
To prospectively compare the diagnostic accuracy of MR enteroclysis with duodenal intubation with MRI after drinking oral contrast agent only (MR enterography) with conventional enteroclysis (conv-E) as reference standard in patients with Crohn's disease. Forty consecutive patients (22 males and 18 females; mean age 36; range 16-74 years) with proven Crohn's disease underwent conv-E and MR imaging. Twenty-two patients underwent MR enteroclysis with intubation (MRE) and 18 underwent MR-enterography (MR per OS). ⋯ The number of detected mesenteric findings was significantly higher with both MRE and MR per OS compared to conv-E (P < 0.01). MRE can serve as the diagnostic procedure for initially evaluating patients suspected of having Crohn's disease. MR per OS may have a role in patients that refuse or have failed intubation and also for follow-up.
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The piriformis syndrome is an uncommon cause of sciatica, buttock or thigh pain. Because of the deep location of the muscle and sciatic nerve, infiltration has traditionally been guided by electromyography, fluoroscopy, computed tomography or magnetic resonance imaging. ⋯ This technique was used satisfactorily in ten patients. Although the series in the study is limited, the procedure for US-guided infiltration of the perisciatic nerve is a quick, simple, economical and effective technique and can be considered an alternative in the percutaneous treatment of the piriformis syndrome.