الفهرس 
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Abstract
The aim of this work is to assess the role of Helical (spiral) computed topography in diagnosis and characterization of chronic diffuse liver diseases and their complications.
The current study showed the value of HCT in imaging of chronic diffuse liver diseases. The advent of HCT has significantly improved detection and characterization of chronic diffuse liver diseases. The addition of HAP allows early liver tumor detection and characterization. This is important in early detection of HCC especially in cirrhotic patients; hence HCT plays an important role in preoperative staging and proper localization of HCC. Patchy enhancement in HAP may occur in different pathological entities such as Budd Chiari active hepatitis. In some patients, detection of this pattern is diagnostic, whereas in others, recognition of the typical location and morphologic appearance at spiral CT prevents false-positive diagnosis.