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在化学转移MRI中"低脂肪"上腺腺瘤的患病率
Meshary Aldhufian1, Jana Sheinis Pickovsky1, Hana Alfaleh1
1Department of Medical Imaging, The Ottawa Hospital, Ottawa, ON, Canada.
缺乏脂肪的上腺瘤不常见,仅在2%的腺瘤中使用二维化学转移MRI发现. 这项研究确定了1.5-T化学转移MRI时缺乏脂肪的上腺腺瘤的患病率.
科学领域:
- 放射学 放射学是一门学科.
- 内分泌学 在内分泌学.
- 在瘤学瘤学.
背景情况:
- 上腺腺瘤是常见的上腺瘤.
- 将腺瘤与其他上腺体群体区分开来,对于患者管理至关重要.
- 化学转移MRI是表征上腺病变的宝贵工具.
研究的目的:
- 为了确定"缺乏脂肪"的上腺腺瘤的患病率,使用2D化学转移MRI在1.5-T.
- 评估信号强度 (SI) 指数在区分腺瘤与其他上腺体质量的准确性.
主要方法:
- 一项前性研究包括104名患者的127个不确定的上腺质量.
- 2D化学转移MRI是在1.5T进行的.
- 信号强度 (SI) 指数和未增强的CT衰减被盲目放射科医生测量.
主要成果:
- 94%的质量是腺瘤 (119/127).
- 只有2%的腺瘤 (2/119) 被MRI (SI指数≤16.5%) 分类为"缺乏脂肪".
- SI指数>16.5%对腺瘤是100%的特异性,而所有其他质量都有SI指数<16.5%.
结论:
- 缺乏脂肪的上腺腺瘤不常见,发生在约2%的腺瘤中.
- 具有SI指数>16.5%的2D化学转移MRI是诊断上腺腺瘤中的微观脂肪的可靠方法.
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