论文部分内容阅读
目的 探讨颈动脉体瘤的MRI及MRA表现。材料与方法 13例 15个颈动脉体瘤术前SET1WI及FSET2 WI检查 ,其中行 2DTOFMRA检查者 12个 ,SET1WI增强检查者 10个。结果 15个颈动脉体瘤均位于颈动脉分叉水平 ,13个骑跨于颈动脉分叉(86 .6 6 % )。T1WI表现为等或略高信号 ,T2 WI表现为混合高信号。SET1WI 13个肿块内可见流空信号 (86 .6 6 % ) ,FSET2 WI均可见流空信号 (10 0 % )。 14个颈动脉体瘤周边可见低信号包膜 (93 .33 % )。 12个行MRA检查者 9个表现为颈动脉分叉扩大 (75 % ) ,其中4个可见肿瘤血管 (33 .33 % ) ,10个增强检查均表现为明显强化。结论 颈动脉体瘤有特征性的MRI及MRA表现 ,MRI及MRA是颈动脉体瘤安全、可靠的检查方法之一
Objective To investigate the MRI and MRA manifestations of carotid body tumors. Materials and Methods Thirteen patients with 15 carotid body tumors underwent SET1WI and FSET2WI examinations, including 12 2DTOFMRA examinations and 10 SET1WI enhancement examinations. Results 15 carotid body tumors were located at the level of carotid bifurcation, and 13 were straddling the carotid bifurcation (86.6%). T1WI showed equal or slightly higher signal, and T2WI showed mixed high signal. In the SET1WI, there were clear signals (86.66 %) in 13 tumors, and empty signals (100%) were seen in FSET2 WI. Low signal capsules (93.33%) were observed around 14 carotid body tumors. Nine of the 12 MRA examiners showed an enlarged carotid bifurcation (75%), of which 4 tumor vessels were visible (33.33%). All of the 10 enhanced examinations showed significant enhancement. Conclusion There are characteristic MRI and MRA manifestations in carotid body tumors. MRI and MRA are one of safe and reliable methods for carotid body tumors.