![]() ![]() In 37.8% of the cases, it was not possible to perform spectroscopy. All SII measurements and spectroscopy-derived metabolite ratios were significant to the differentiation between adenomas and nonadenomas, except for the lipid/creatine and choline/lipid ratios. Of the 97 patients evaluated, 69 were diagnosed with adenomas and 28 were diagnosed with nonadenomas. All indices were compared with metabolite ratios derived from spectroscopy: lactate/creatine glutamine-glutamate/creatine choline/creatine choline/lipid 4.0-4.3 ppm/Cr and lipid/creatine. We employed a region of interest that covered one half to two thirds of the mass. When that was not possible (for smaller lesions), we used one or two images. We determined the averages of the minimum, mean, and maximum signal intensity values measured on three consecutive images. The signal intensity index (SII) was calculated as × 100%. This was a prospective study involving 97 patients with adrenal nodules or masses. To investigate the advantages of using modified signal intensity measurements on chemical shift imaging alone or in conjunction with proton magnetic resonance spectroscopy in the differential diagnosis of adrenal adenomas. ![]()
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