Tasciyan T A, Mitchell D G, Spritzer C E
Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107.
J Magn Reson Imaging. 1991 Nov-Dec;1(6):715-20. doi: 10.1002/jmri.1880010618.
Magnetic resonance phase images can enable identification of any type of motion, including the velocity and direction of flow, and thus provide valuable supplements to magnitude images, which depict stationary tissue most effectively. A method is described for the simultaneous display of phase and magnitude by color encoding the phase data and superimposing it on the magnitude image to facilitate clinical interpretation. Color-encoded data not only depict the location and direction of flow along specific axes but can also provide relative velocity information through shades of color. Implementation of the technique is described, and the factors to be considered during interpretation of color flow-encoded images are discussed.
磁共振相位图像能够识别任何类型的运动，包括血流速度和方向，从而为幅值图像提供有价值的补充，幅值图像能最有效地描绘静止组织。本文描述了一种通过对相位数据进行颜色编码并将其叠加在幅值图像上以同时显示相位和幅值的方法，便于临床解读。颜色编码数据不仅能描绘沿特定轴的血流位置和方向，还能通过颜色深浅提供相对速度信息。文中描述了该技术的实施方法，并讨论了在解读彩色血流编码图像时需考虑的因素。
