[Helical computed tomography of the liver: evaluation of the different circulatory phases]

With Helical CT development it is possible to examine the entire liver during one breath hold, marking difficult to miss any piece of parenchyma, and besides the speed of this method makes it capable to evaluated the different phases of the hepatic circulation after i.v. administration of contrast material. Both sensitivity and specificity of CT have improved since the use of this new device. Another advantage of the technique is the factibility of multidirectional and tridimensional reconstruction. We present in this paper our records of patients having hepatic lesions examined with this new methodology.