Goehde Susanne C, Kuehl Hilmar, Ladd Mark E
Department of Diagnostic and Interventional Radiology, University Hospital Essen, Hufelandstrasse 55, 45122, Essen, Germany.
Eur Radiol. 2005 Dec;15(12):2423-6. doi: 10.1007/s00330-005-2765-2. Epub 2005 May 20.
A 30-year-old female patient with isolated facial lipodystrophy underwent two sessions of fat injection. MR signals of injected fat at different injection ages were compared to native fat. Native T1 signal was smaller for transplant fat, probably due to a slightly lower fat content and/or fibrosis or due to higher perfusion. T2 signal of transplants was significantly higher than that of native fat. T1 post-contrast was also higher, and contrast uptake of transplanted fat increased slightly with transplant age, which could be explained by an increasing perfusion. This study demonstrates the differences and MR signal time changes of native and transplanted fat.
一名患有孤立性面部脂肪营养不良的30岁女性患者接受了两次脂肪注射。将不同注射时间的注射脂肪的磁共振信号与天然脂肪进行比较。移植脂肪的天然T1信号较小，可能是由于脂肪含量略低和/或纤维化，或由于灌注较高。移植脂肪的T2信号明显高于天然脂肪。T1增强后信号也较高，且移植脂肪的对比剂摄取随移植时间略有增加，这可以用灌注增加来解释。本研究证明了天然脂肪和移植脂肪的差异以及磁共振信号随时间的变化。
