Unenhanced Flow-Independent MR Venography by Using Signal Targeting Alternative Radiofrequency and Flow-Independent Relaxation Enhancement
Unenhanced Flow-Independent MR Venography by Using Signal Targeting Alternative Radiofrequency and Flow-Independent Relaxation Enhancement
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DOI：
10.1148/radiol.2493080496
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发表时间：
2009-01-01
期刊：
影响因子：
19.7
通讯作者：
Koktzoglou, Ioannis
中科院分区：
文献类型：
--
作者：
Edelman, Robert R.;Koktzoglou, Ioannis
本研究的目的是提供使用替代射频和非血流依赖性舒张增强（STARFIRE）技术的信号靶向的初步描述，并通过对健康受试者和外周静脉疾病患者的小队列的下肢深静脉和浅静脉进行成像来证明临床可行性。STARFIRE是一种用于非增强磁共振（MR）血管造影的非血流依赖性技术。绝热反转脉冲应用于交替采集的所有自旋，然后进行复数减法。由于脂肪和肌肉信号的均匀抑制，血管显得明亮。经医院机构审查委员会批准并签署书面知情同意书后，对6名健康患者和4名外周静脉疾病患者进行了研究。结果表明STARFIRE描绘下肢深静脉和浅静脉系统的临床可行性，并建议需要进行额外的临床评价。(C)RSNA，2009年
The purpose of this study was to provide the initial description of the signal targeting using alternative radiofrequency and flow-independent relaxation enhancement (STARFIRE) technique and demonstrate clinical feasibility by imaging the deep and superficial veins of the lower extremities in a small cohort of healthy subjects and patients with peripheral venous disease. STARFIRE is a flow-independent technique for unenhanced magnetic resonance (MR) angiography. An adiabatic inversion pulse is applied to all spins on alternative acquisitions followed by complex subtraction. Blood vessels appear bright with uniform suppression of fat and muscle signals. Following approval by the hospital institutional review board and with written, informed consent, six healthy patients and four with peripheral venous disease were studied. The results demonstrate the clinical feasibility of STARFIRE to depict the deep and superficial venous systems of the lower extremities, and suggest the need for addition clinical evaluation. (C) RSNA, 2009