Gryspeerdt S, Van Hoe L, Baert A L, Marchal G
Universitaire Ziekenhuizen K.U.L., Leuven, Belgium.
J Belge Radiol. 1995 Apr;78(2):98-101.
Spiral CT allows rapid acquisition of axial images during a single breath-hold. This results in optimal vascular and parenchymal opacification and eliminates respiratory misregistration. These factors also contribute to high quality multiplanar displays. Double phase spiral CT allows repeated scanning in the vascular (arterial) phase and in the parenchymal phase after contrast injection, resulting in optimal detection of parenchymal as well as vascular lesions. The advantages and applications of spiral scanning for imaging the pancreas are discussed.
螺旋CT可在一次屏气期间快速采集轴向图像。这能实现最佳的血管和实质强化,并消除呼吸配准误差。这些因素也有助于高质量的多平面显示。双期螺旋CT允许在注射造影剂后在血管(动脉)期和实质期进行重复扫描,从而能最佳地检测实质和血管病变。本文讨论了螺旋扫描在胰腺成像中的优势及应用。