pc-ASL技术在桥小脑角区肿瘤术后复发评估
发布时间：2019-05-11 18:39
【摘要】：目的:探讨3DFSE的pc-ASL技术对桥小脑角区肿瘤术后复发的诊断价值。方法:选取21例桥小脑角区占位性病变术后患者,行常规平扫及增强序列,在增强前扫描pc-ASL序列。将pc-ASL功能图像与增强后Ax 3D T1WI融合,测量异常强化区域及对侧正常脑组织的CBF值,评价是否存在肿瘤复发。结果:全部21例手术区出现异常强化区患者,13例为复发。17例患者行DSC-PWI失败,图像无法满足诊断需求。全部21例pc-ASL检查成功。肿瘤复发区域的CBF值为(64.2±3.03)mL/100g/min,对侧正常脑实质的CBF值为(52.5±1.89)mL/100g/min。肿瘤复发区域的CBF值明显高于对照侧脑组织,两者之间差异有统计学意义(t=12.498,P0.05)。结论:基于3DFSE的pc-ASL序列安全无创,无需注射对比剂,磁敏感效应影响小,可以用于评估桥小脑角区肿瘤有无术后复发。
[Abstract]:Objective: to evaluate the diagnostic value of 3DFSE pc-ASL in postoperative recurrence of cerebellopontine angle tumors. Methods: 21 patients with space-occupying lesions in cerebellopontine angle were treated with conventional plain scan and enhanced sequence, and pc-ASL sequence was scanned before enhancement. The functional images of pc-ASL were fused with enhanced Ax 3D T1WI to measure the CBF values of abnormal enhancement area and contralateral normal brain tissue, and to evaluate the existence of tumor recurrence. Results: in all 21 patients with abnormal enhancement area, 13 patients had recurrence. 17 patients failed to perform DSC-PWI and the images could not meet the diagnostic requirements. All 21 cases were examined successfully by pc-ASL. The CBF value of tumor recurrence area was (64.2 卤3.03) mL/100g/min, and the CBF value of contralateral normal brain parenchyma was (52.5 卤1.89) mL/100g/min.. The CBF value of tumor recurrence area was significantly higher than that of control brain tissue, and there was significant difference between the two groups (t 鈮，
本文编号：2474755
[Abstract]:Objective: to evaluate the diagnostic value of 3DFSE pc-ASL in postoperative recurrence of cerebellopontine angle tumors. Methods: 21 patients with space-occupying lesions in cerebellopontine angle were treated with conventional plain scan and enhanced sequence, and pc-ASL sequence was scanned before enhancement. The functional images of pc-ASL were fused with enhanced Ax 3D T1WI to measure the CBF values of abnormal enhancement area and contralateral normal brain tissue, and to evaluate the existence of tumor recurrence. Results: in all 21 patients with abnormal enhancement area, 13 patients had recurrence. 17 patients failed to perform DSC-PWI and the images could not meet the diagnostic requirements. All 21 cases were examined successfully by pc-ASL. The CBF value of tumor recurrence area was (64.2 卤3.03) mL/100g/min, and the CBF value of contralateral normal brain parenchyma was (52.5 卤1.89) mL/100g/min.. The CBF value of tumor recurrence area was significantly higher than that of control brain tissue, and there was significant difference between the two groups (t 鈮，
本文编号：2474755
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