Susceptibility Weighted Imaging and MR Angiography

摘要: Magnetic resonance angiography (MRA) has undergone tremendous development since its inception (Nayler et al., J Comput Assist Tomogr 10:715–722, 1986; Nishimura IEEE Trans Med Imaging 5:140–151, Haacke and Lenz, AJR Am Roentgenol 148:1251–1258, 1987). To image the vessels in brain at high fields clinically, there is no longer need to use contrast agents thanks increased signal-to-noise 3 T rapid scanning that possible. Conventional time-of-flight (Potchen Resonance Angiography: Concepts Applications, St. Louis: Mosby:xiv, 650, 1993) with or without magnetization transfer (MTC) can give excellent coverage high-resolution images. Similarly, susceptibility weighted imaging (SWI) be used create venographic images of as small 200–300 μm (Reichenbach, Radiology 204:272–277, 1997; Magn Reson 52(3):612–618, 2004). In this chapter, we discuss potential both arteries veins an SWI single multiecho (TOF)-like sequence.