Rapid MR imaging with suspended respiration: clinical application in the liver.
Rapid MR imaging with suspended respiration: clinical application in the liver.
复制标题
暂停呼吸的快速 MR 成像：肝脏的临床应用。
DOI：
10.1148/radiology.161.1.3763854
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发表时间：
1986
期刊：
影响因子：
19.7
通讯作者：
Brady,TJ
中科院分区：
文献类型：
--
作者：
Edelman,RR;Hahn,PF;Buxton,R;Wittenberg,J;Ferrucci,JT;Saini,S;Brady,TJ
作者证明，在屏气间隔使用暂停呼吸部分饱和度（SRPS）方法获得腹部的高t1加权图像是可能的。T2*加权图像也可以快速得到反映组织T2以及静磁场变化的图像。作者研究了5名健康受试者和19名各种肝脏异常患者，包括良性和恶性肝脏肿瘤、脂肪肝浸润、腹水和血肿。在t1加权多切片扫描中，整个肝脏可以在20秒的屏气间隔内筛查肿块病变。相衬SRPS图像对肝脏脂肪浸润很敏感。SRPS图像对磁化率的变化比自旋回波图像更敏感，已被证明在出血的检测中有价值。随着脉搏序列的不断发展和临床研究，该方法有可能成为评估上腹部的首选方法。
The authors demonstrate that it is possible to obtain highly T1-weighted images of the abdomen using a suspended respiration partial saturation (SRPS) method in a breath-holding interval. T2*-weighted images, which reflect tissue T2 as well as variations in the static magnetic field, can also be rapidly obtained. The authors studied five healthy subjects and 19 patients with a variety of liver abnormalities, including benign and malignant hepatic neoplasms, fatty liver infiltration, ascites, and hematoma. On T1-weighted multisection acquisitions, the entire liver can be screened for mass lesions in a single 20-second breath-holding interval. Phase-contrast SRPS images are sensitive to fatty infiltration of the liver. SRPS images are more sensitive to variations in magnetic susceptibility than spin-echo images are, which has been proved to be of value in the detection of hemorrhage. With continued pulse sequence development and clinical study, this method has the potential to become the method of choice for evaluation of the upper abdomen.