中国医疗设备
中國醫療設備
중국의료설비
China Medical Devices
2015年
9期
47-50
,共4页
快速小角度激发序列%快速自旋回波序列%增强扫描%运动伪影%血管搏动伪影
快速小角度激髮序列%快速自鏇迴波序列%增彊掃描%運動偽影%血管搏動偽影
쾌속소각도격발서렬%쾌속자선회파서렬%증강소묘%운동위영%혈관박동위영
fast low angle shot sequences%turbo spin echo sequences%contrast-enhanced scanning%motion artifacts%vascular pulsatility artifacts
目的：探讨快速自旋回波（TSE）抑脂序列与快速小角度激发（FLASH）抑脂序列在颈部增强扫描中的应用价值。方法采用Siemens Avanto 1.5T磁共振扫描仪对30名受检者行颈部增强扫描，分别采用T1加权快速自旋回波抑脂序列（T1-TSE-FS）、T1加权快速小角度激发抑脂序列（T1-FLASH-FS）。由两名高年资医师对两种序列的成像效果进行评分，采用秩和检验分析评分结果。结果30名受检者均完成T1-TSE-FS和T1-FLASH-FS序列的横轴位、冠状位、矢状位扫描。横、冠、矢三方位的总扫描时间：T1-FLASH-FS比T1-TSE-FS快2 min 55 s。运动伪影：横、冠、矢三方位上，T1-FLASH-FS的运动伪影数目均少于T1-TSE-FS，两者评分的差异均有统计学意义（P<0.05）。血管搏动伪影：横轴位上，T1-FLASH-FS的血管搏动伪影明显少于T1-TSE-FS，两者评分的差异有统计学意义（P<0.05）；冠状位、矢状位上，两者评分的差异均无统计学意义（P>0.05）。脂肪抑制效果：横、冠、矢三方位上，T1-FLASH-FS的脂肪抑制效果均优于T1-TSE-FS，两者评分的差异均有统计学意义（P<0.05）。结论T1-FLASH-FS较T1-TSE-FS采集时间短，运动伪影、血管搏动伪影少，脂肪抑制效果好，能更好地满足诊断要求。
目的：探討快速自鏇迴波（TSE）抑脂序列與快速小角度激髮（FLASH）抑脂序列在頸部增彊掃描中的應用價值。方法採用Siemens Avanto 1.5T磁共振掃描儀對30名受檢者行頸部增彊掃描，分彆採用T1加權快速自鏇迴波抑脂序列（T1-TSE-FS）、T1加權快速小角度激髮抑脂序列（T1-FLASH-FS）。由兩名高年資醫師對兩種序列的成像效果進行評分，採用秩和檢驗分析評分結果。結果30名受檢者均完成T1-TSE-FS和T1-FLASH-FS序列的橫軸位、冠狀位、矢狀位掃描。橫、冠、矢三方位的總掃描時間：T1-FLASH-FS比T1-TSE-FS快2 min 55 s。運動偽影：橫、冠、矢三方位上，T1-FLASH-FS的運動偽影數目均少于T1-TSE-FS，兩者評分的差異均有統計學意義（P<0.05）。血管搏動偽影：橫軸位上，T1-FLASH-FS的血管搏動偽影明顯少于T1-TSE-FS，兩者評分的差異有統計學意義（P<0.05）；冠狀位、矢狀位上，兩者評分的差異均無統計學意義（P>0.05）。脂肪抑製效果：橫、冠、矢三方位上，T1-FLASH-FS的脂肪抑製效果均優于T1-TSE-FS，兩者評分的差異均有統計學意義（P<0.05）。結論T1-FLASH-FS較T1-TSE-FS採集時間短，運動偽影、血管搏動偽影少，脂肪抑製效果好，能更好地滿足診斷要求。
목적：탐토쾌속자선회파（TSE）억지서렬여쾌속소각도격발（FLASH）억지서렬재경부증강소묘중적응용개치。방법채용Siemens Avanto 1.5T자공진소묘의대30명수검자행경부증강소묘，분별채용T1가권쾌속자선회파억지서렬（T1-TSE-FS）、T1가권쾌속소각도격발억지서렬（T1-FLASH-FS）。유량명고년자의사대량충서렬적성상효과진행평분，채용질화검험분석평분결과。결과30명수검자균완성T1-TSE-FS화T1-FLASH-FS서렬적횡축위、관상위、시상위소묘。횡、관、시삼방위적총소묘시간：T1-FLASH-FS비T1-TSE-FS쾌2 min 55 s。운동위영：횡、관、시삼방위상，T1-FLASH-FS적운동위영수목균소우T1-TSE-FS，량자평분적차이균유통계학의의（P<0.05）。혈관박동위영：횡축위상，T1-FLASH-FS적혈관박동위영명현소우T1-TSE-FS，량자평분적차이유통계학의의（P<0.05）；관상위、시상위상，량자평분적차이균무통계학의의（P>0.05）。지방억제효과：횡、관、시삼방위상，T1-FLASH-FS적지방억제효과균우우T1-TSE-FS，량자평분적차이균유통계학의의（P<0.05）。결론T1-FLASH-FS교T1-TSE-FS채집시간단，운동위영、혈관박동위영소，지방억제효과호，능경호지만족진단요구。
Objective To discuss the application value of TSE (Turbo Spin Echo) fat saturation (FS) and FLASH (Fast Low Angle Shot) FS sequences in cervical enhanced scanning. Methods Altogether 30 patients underwent cervical contrast-enhanced MRI (CE-MRI) scanning with Siemens Avanto 1.5 T MRI scanner. The images of all 30 cases were obtained on both the TSE-FS and FLASH-FS sequences, and then were evaluated and scored by two experienced radiologists separately. Scoring results were analyzed statistically with the Wilcoxon test. Results T1WIs with both of TSE-FS and FLASH-FS sequences in all orientations including transverse and coronal and sagittal dimensions, had been acquired in all 30 patients. T1-FLASH-FS sequences were 2'55"faster than T1-TSE-FS in the total acquisition time in all dimensions. As for motion artifacts, in all transverse and coronal as well as saggital orientations, it was statistically signiifcant (P<0.05) between T1-FLASH-FS and T1-TSE-FS sequences with artifacts in the former one less than the later one. As for vascular pulsatility artifacts, only in transverse scanning, it was statistically signiifcant (P<0.05) between T1-FLASH-FS and T1-TSE-FS sequences with artifacts in the former one less than the later one;but in the other two orientations including both coronary and saggital orientations, on the contrary, it was not statistically signiifcant (P>0.05). As for fat saturation effect, in all the transverse and coronal as well as sagittal orientations, it was better on T1-FLASH-FS sequence than the T1-TSE-FS with statistical signiifcant differences between the two scores (P<0.05). Conclusion With shorter acquisition time, less motion artifacts and pulsatility artifacts as well as better fat suppression effect, T1-FLASH-FS sequence could better meet the diagnostic requirements in comparison with T1-TSE-FS sequence in cervical CE-MRI scanning.
