Transient hepatic attenuation differences at biphasic spiral CT examinations
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Abdominal Imaging - Pictorial Essay
P: 96-101
June 2005

Transient hepatic attenuation differences at biphasic spiral CT examinations

Diagn Interv Radiol 2005;11(2):96-101
1. Department of Radiology, Adnan Menderes University School of Medicine, Aydın, Turkey
2. Department of Radiology, Adnan Menderes University School of Medicine, Aydın, Turkey
3. From the Department of Radiology, Adnan Menderes University School of Medicine, Aydın, Turkey
4. Department of Radiology, Adnan Menderes University Faculty of Medicine, Aydın, Turkey
No information available.
No information available
Received Date: 24.09.2004
Accepted Date: 29.11.2004
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ABSTRACT

Transient hepatic attenuation difference (THAD) is a perfusion disorder that can sometimes be observed in hepatic arterial phase of a biphasic spiral CT examination. The involved site of liver by THAD appears as an area of high attenuation on the hepatic arterial phase image and returns to normal attenuation on portal venous phase image. The knowledge of the shape, distribution and causes of THAD is essential to differentiate the THAD from other pathologies such as neoplasm.