Venous computed tomography

Taylor, C.R. Computed tomography in the evaluation of the portal venous system. J. Clin. Gastroenterol. 1992 14 167—172... 

Computer tomography, especially when coupled with a contrast medium and in the form of CTAP, is an excellent tool for analyzing the venous blood flow and detecting any disturbances in inflow or outflow. Thrombosed hepatic veins are not visible the parenchyma is characterized by an inhomogeneous, patch-like enhancement. (s. fig. 39.6) MRI provides reliable evaluation by means of multiphase, contrast-enhanced, three-dimensional MR angiography. 

Sheaves R. Relative value of computed tomography scanning and venous sampling in establishing the cause of primary hyperaldosteronism. Eur J Endocrinol 1996 134 308-13. 

Computed tomography (CT) demonstrates the extension of venous malformations but the contrast resolution is less than with MRl. The lesion is hypodense or heterogeneous with a slow contrast enhancement after injection of contrast material (Fig. 2.4a,b). Phle-boliths, when present, are easily seen. 

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