| 磁化传递对比成像技术及其应用 |
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| 引用本文： | 龚小娅,蒋飚. 磁化传递对比成像技术及其应用[J]. 上海医学影像, 2000, 9(3): 140-142 |
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| 作者姓名： | 龚小娅 蒋飚 |
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| 作者单位： | 浙江大学医学院附属第二医院放射科 |
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| 摘 要： | 目的 探讨磁化传递对比成像（ＭＴＣ）技术及其临床应用。方法 设定不同的ＴＲ参数测定对ＭＴＣ的影响，以双蒸馏水、０．４ｍｍｏｌ／１ＭｎＣｌ２溶液模型测定ＭＴ脉冲作用，并对９８例检查进行用或不同ＭＴＣ的配对扫描。结果 ＭＴ脉冲对双蒸馏水、０．４ｍｍｏｌ／１ＭｎＣｌ２信号影响基微，脑灰、白质ＭＴ效应与ＴＲ相关，ＭＴＣ使脑脊液与颈髓与颈髓相对信噪比提高约３０％，肿瘤病灶增强相对信噪比提高５８％，８５．３１
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| 关 键 词： | 磁共振成像 磁化传递对比成像 颅内肿瘤 |
Magnetization transfer contrast: technicality and clinical application |
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| Gong Xiao - ya,Jiang biao,He chuan - Hang. Magnetization transfer contrast: technicality and clinical application[J]. Shanghai Medical Imaging, 2000, 9(3): 140-142 |
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| Authors: | Gong Xiao - ya Jiang biao He chuan - Hang |
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| Affiliation: | Gong Xiao - ya,Jiang biao,He chuan - Hang. Department of Radiology the Second affliated Hospital,Medical college of Zhe Jiang Univesity,Hangzhou,310009 |
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| Abstract: | Purpose To introduce magnetization transfer contrast (MTC) and evaluate its clinical application. Methods 98 cases with MTC and conventional sequence were analyzed and compared with each other,and two solution phantom, were used in the volunteer measurements. Results The MT ratio of normal white matter was 19.48, with less than 3% contribution from direct saturation and spin lock, the value of MTRs was relative to TR. MTC provided a 58% improvement in the C/N of lesions over the conventional T1weighted SE images on postcontrast, the visualization of smaller vessels is improved with time-of-flight when MT pulse were used. Conclusion MTC provides new patterns of tissue contrast and improves the depiction of contrast enhancement. |
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| Keywords: | MR Magnetization transfer contrast Intracranial tumor |
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