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摘要目的采用四维CT成像技术,比较3种相对增强模式对甲状旁腺病变的检出率。材料与方法该研究获得机构伦理委员会批准,并按HIPAA要求签署知情同意书。回顾性分析了2012年11月—2014年6月期间经病理证实为甲状旁腺腺瘤或增生的94例病人,术前均行4D CT扫描。将病人分成3组采用不同的相对增强模式。平扫时,在所有模式中病变的CT值均小于正常甲状腺组织,但在增强的两个时相,不同模式中病变的CT值不同。A模式下病变的CT值动脉期高于正常甲状腺组织;B模式下病变的CT值动脉期不
Abstract Objective To compare the detection rate of parathyroid lesions among the three relative enhancement modes by four-dimensional CT imaging. Materials and Methods The study was approved by the Institutional Ethics Committee and signed informed consent as required by HIPAA. A retrospective analysis of 94 patients with pathologically confirmed parathyroid adenoma or hyperplasia from November 2012 to June 2014 was performed 4-D CT scan before surgery. Divide the patients into 3 groups using different relative enhancement patterns. At the time of plain scan, the CT values of the lesion were smaller than those of the normal thyroid tissue in all modes, but the lesions had different CT values in the two phases of enhancement. The CT value of lesion in A mode was higher than that in normal thyroid tissue. The CT value of lesion in B mode was not in the arterial phase