论文部分内容阅读
目的 探讨磁敏感成像序列对颅内海绵状血管瘤的检出率与诊断价值。 资料与方法 回顾性分析25 例在SE T1WI和SE T2WI序列上无阳性或表现不典型、加作磁敏感成像序列扫描后诊断为海绵状血管瘤的46个病 灶,所有病例均经临床或手术病理证实。结果 25例中,单发病灶22例,多发病灶3例,其中1例同时发现12个 病灶。46个病灶在SE T1WI和SE T2WI上呈等、低、高或混杂信号,未显示“铁环征”26个(56．5％),较明显“铁环征” 7个(15．2％),不明显“铁环征”13个(28．3％);在磁敏感成像序列上,21个(45．7％)表现为完全低信号,25个 (54．3％)在低信号中伴有点状、条状、桑葚状高信号,并出现明显的“铁环征”,MR诊断为海绵状血管瘤,手术病理 证实诊断正确率为100％。结论 磁敏感成像序列对颅内海绵状血管瘤的诊断有重要价值。
Objective To investigate the detection rate and diagnostic value of magnetic susceptibility imaging sequences in intracranial cavernous hemangiomas. Materials and Methods Retrospective analysis of 25 cases of 46 cases of cavernous hemangiomas diagnosed as cavernous hemangioma after scan without magnetic resonance imaging on SE T1WI and SE T2WI sequences, all cases were clinically or surgically pathologically Confirmed. Results Of the 25 cases, 22 were single lesions and 3 were multiple lesions, of which 12 lesions were found in 1 case at the same time. Forty-six lesions showed equal, low, high or mixed signals on SE T1WI and SE T2WI. Twenty-six (56.5%) of the “ferrous ring sign” and seven (15.2% ), 13 (28.3%) were not obviously “iron ring sign”; 21 (45.7%) showed complete low signal and 25 (54.3% Accompanied by a dot, strip, mulberry-like high signal, and a clear “iron ring sign”, MR diagnosis of cavernous hemangioma, surgical pathology confirmed the diagnosis was 100% correct. Conclusion Magnetic resonance imaging is of great value in the diagnosis of intracranial cavernous hemangiomas.