Introduction: About half of the adult patients suffering from chronic abdominal pain may have no organ-related cause. Our purpose was to evaluate the additional information of magnetic resonance imaging (MRI) in diagnosing the underlying organic causes of such pain. Methods: We performed retrospective audit of 636 consecutive abdominal MRI in patients suffering from nonspecific abdominal pain (NSAP) during years 2014–2017. Medical history, clinical examination, endoscopy reports, and the results of MRI were compared in all patients. The hypothesis was that MRI increases markedly the diagnostic specificity of patients’ symptoms. Results: The mean age of patients was 66 ± 14 years and 60 percent were females. Duration of abdominal pain ranged from 1 month to 30 years (median 1.1 ± 4.0 years). Concurrently with abdominal MRI (n = 636), also ultrasound (n = 106, 17%), colonoscopy (n = 222, 35%), and gastroscopy (n = 217, 34%) were performed. Abdominal MRI revealed additional information in 161/636 (25%) of NSAP patients. Spinal and pelvic bone abnormalities (n = 107) and malignant tumors (n= 31) were the most significant organ-specific findings changing the treatment algorithm. Conclusions: When computerized tomography is not available in outpatient clinics, abdominal MRI increases markedly diagnostic specificity and alters the treatment in 1 of 4 patients suffering from NSAP. Abdominal MRI is therefore suggested for patients suffering from severe symptoms of NSAP.

Keywords:
Chronic abdominal pain, Nonspecific abdominal pain, Magnetic resonance imaging, Diagnosis
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