Braun I F, Malko J A, Davis P C, Hoffman J C, Jacobs L H
AJNR Am J Neuroradiol. 1986 Nov-Dec;7(6):997-1001.
MR imaging is considered by many to be the procedure of choice in imaging the spinal cord; yet we encountered an important pitfall of this procedure in the form of a patient with retained intraspinal Pantopaque. The results of this case are presented as well as those obtained in another patient with retained Pantopaque. Also described is the behavior of this contrast material when using in vitro imaging data obtained from a CSF/Pantopaque phantom. When T1-weighted imaging sequences are used, Pantopaque gives a high signal and CSF gives a low signal. With long repetition time, (e.g., 4000 ms), the CSF signal is high and the Pantopaque signal is not. With repetition time around 1000 to 2000, both may be isointense. The implications of these findings are discussed.
许多人认为磁共振成像（MR）是脊髓成像的首选检查方法；然而，我们遇到了该检查方法的一个重要缺陷，即一名患者脊髓内残留了碘苯酯。本文展示了该病例以及另一例残留碘苯酯患者的结果。此外，还描述了使用从脑脊液/碘苯酯模型获得的体外成像数据时该造影剂的表现。当使用T1加权成像序列时，碘苯酯呈高信号，脑脊液呈低信号。在长重复时间（例如4000毫秒）时，脑脊液信号高，碘苯酯信号不高。在重复时间约为1000至2000时，两者可能等信号。文中讨论了这些发现的意义。
