Reinig J W, Dwyer A J, Miller D L, White M, Frank J A, Sugarbaker P H, Chang A E, Doppman J L
Radiology. 1987 Jan;162(1 Pt 1):43-7. doi: 10.1148/radiology.162.1.3786786.
Twenty patients with known liver metastases were evaluated by unenhanced computed tomography (CT), scans enhanced with ethiodized oil emulsion-13 (EOE-13), and magnetic resonance (MR) imaging with three pulse sequences. Spin-echo (SE) 300/26 (repetition time/echo time, in msec) images prospectively demonstrated 95.4% of the detectable liver metastases; inversion recovery (IR) 1,500/100 (repetition time/inversion time, in msec) images revealed 90.8%; and EOE-13-enhanced CT scans showed 87.1%. SE 2,000/80 images showed 51.4%, and unenhanced CT scans 49.6%, of the metastases. The relationship of vascular anatomy to metastatic foci was best seen on SE 300/26 images and EOE-CT scans. SE 300/26, IR 1,500/100, and EOE-CT studies particularly improved detection of lesions in the 1-2-cm range compared with SE 2,000/80 imaging or unenhanced CT scanning. SE 300/26 and IR 1,500/100 sequences appear comparable to EOE-CT scans in demonstrating liver metastases and significantly superior to conventional CT scans. Because EOE-13 is generally not available, these MR sequences should be the procedure of choice for the diagnosis of liver metastases.
对20例已知有肝转移的患者进行了如下检查：未增强计算机断层扫描（CT）、经乙碘油乳剂-13（EOE-13）增强的扫描以及采用三种脉冲序列的磁共振（MR）成像。自旋回波（SE）300/26（重复时间/回波时间，单位为毫秒）图像前瞻性显示了95.4%的可检测到的肝转移灶；反转恢复（IR）1500/100（重复时间/反转时间，单位为毫秒）图像显示了90.8%；EOE-13增强CT扫描显示了87.1%。SE 2000/80图像显示了51.4%的转移灶，未增强CT扫描显示了49.6%的转移灶。血管解剖结构与转移灶的关系在SE 300/26图像和EOE-CT扫描上显示得最好。与SE 2000/80成像或未增强CT扫描相比，SE 300/26、IR 1500/100和EOE-CT研究尤其提高了对1-2厘米范围内病变的检测。在显示肝转移方面，SE 300/26和IR 1500/100序列似乎与EOE-CT扫描相当，且明显优于传统CT扫描。由于EOE-13一般无法获得，这些MR序列应成为诊断肝转移的首选方法。
