Schwabe B, Kahn T, Harth T, Ulrich F, Schwarzmaier H J
Institute of Diagnostic Radiology, Heinrich Heine University, Düsseldorf, Germany.
J Comput Assist Tomogr. 1997 Sep-Oct;21(5):818-25. doi: 10.1097/00004728-199709000-00031.
The purpose of our study was to investigate with MRI the development of thermal lesions in the human brain up to almost 4 years after laser-induced interstitial thermotherapy (LITT).
Eighteen patients with brain tumors who underwent LITT entered the study.
In all patients the acute lesion comprised five concentric zones that showed reverse signal intensities on T1- versus T2-weighted images. Lesion development over time was uniform in 89% of the lesions. In two cases variations were observed.
The results of our MR follow-up studies showed that post-LITT, laser-induced lesions will shrink exponentially after an initial expansion without any pseudocystic effects.
我们研究的目的是利用磁共振成像（MRI）研究激光间质热疗（LITT）后近4年人脑内热损伤的发展情况。
18例接受LITT治疗的脑肿瘤患者进入本研究。
所有患者的急性损伤均由五个同心圆区域组成，这些区域在T1加权图像和T2加权图像上显示出相反的信号强度。89%的损伤随时间的发展是均匀的。在两例中观察到了变化。
我们的磁共振随访研究结果表明，LITT后，激光诱导的损伤在初始扩张后将呈指数级缩小，且无任何假性囊肿效应。
