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目的以质子MR波谱成像为参考标准,评价超声(US)检查诊断和评估严重肥胖青少年脂肪肝的准确性,并计算其正面和负面验后概率,了解发病率对其预测价值的影响。材料与方法该前瞻性研究经过了机构审查委员会批准,
OBJECTIVE To evaluate the accuracy of US imaging in diagnosing and assessing fatty liver in severely obese adolescents by using proton MR spectroscopy as a reference standard and evaluate its positive and negative posterior probability to understand the effect of morbidity on its predictive value. Materials and Methods The prospective study was approved by the Institutional Review Board,