无脂肪血管平滑肌脂肪瘤的病理特征与超声、CT和MRI影像学表现的相关性

发布时间：2018-05-08 20:07

本文选题：超声 + CT　；参考：《中国老年学杂志》2017年18期

【摘要】：目的探讨超声、CT和磁共振成像(MRI)对于血管平滑肌脂肪瘤(AML)病理特征与影像学表现的相关性。方法收集18例无脂肪AML患者临床检查资料,平均(54.2±12.0)岁,其中女13例,男5例。无脂肪AML患者行CT、MRI及超声检查,与临床组织学检查结果进行统计学分析。结果患者肾脏皮髓交界相(CM)和骨盆延迟实质相(NG)的AML平均增强值均小于相邻同侧正常肾皮质组织(CP)(P0.000 1);所有患者AML部位的T2W信号强度较CP低,T2WSIR平均值为(0.61±0.1);动态增强扫描衰减差异为负值的输出或E值的输出分型与病理诊断血管数间无显著相关性(P=0.68),AML回声反射与组织学诊断特征间无显著相关性(P0.05);AML患者CT等衰减和高倍视野脂肪细胞比例25%存在显著相关性(P=0.01);高倍视野脂肪细胞比25%的患者在MRI检查中也存在可见的脂肪组织(P=0.04)。结论多数无脂肪AML成像特征主要包括非对比增强CT(NECT)的高衰减,较低的T2W MRI信号强度,CT等衰减和高倍视野脂肪细胞比例25%之间存在显著相关性为临床诊断无脂肪AML提供一定的借鉴意义。
[Abstract]:Objective to investigate the correlation between pathological features and imaging features of angiomyolipoma (AMLL) by ultrasound CT and magnetic resonance imaging (MRI). Methods the clinical data of 18 patients with AML without fat were collected. The average age was 54.2 卤12.0 years old, including 13 females and 5 males. CTU MRI and ultrasonography were performed in non-fat AML patients, and the results were statistically analyzed with clinical histology. Results the average enhancement value of AML in the renal dermatomedullary junction phase (CMM) and pelvic delayed parenchymal phase (AML) was lower than that in the adjacent ipsilateral normal renal cortical tissue (P 0.000 1), and the T2W signal intensity of all patients with AML was lower than that of CP and the mean value of T2WSIR in all patients was 0.61 卤0.1g, and dynamic enhancement was also observed in all patients. There is no significant correlation between the output of negative value or E value and the number of vessels diagnosed by pathology. There is no significant correlation between echo reflex of P0. 68 / AML and histologic diagnosis. There is no significant correlation between CT iso-attenuation and high power field adipose fine in patients with P0. 05 or AML. There was a significant correlation between 25% and 25% of the patients with high power field adipocyte ratio, and there was also a presence of adipose tissue in the MRI examination in 25% of the patients with high power field of vision. Conclusion the main features of fat free AML imaging include the high attenuation of non-contrast enhanced AML. There is a significant correlation between the low T2W MRI signal intensity and the ratio of adipocytes in high power field and the ratio of adipocytes in high power field. It is useful for clinical diagnosis of adipose AML.
【作者单位】：齐齐哈尔医学院附属第二医院CT室;
【分类号】：R445;R730.44;R737.11

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