Computed Tomography (CT) Perfusion in Abdominal Cancer: Technical Aspects

Diagnostics

Martin Lundsgaard Hansen¹  Rikke Norling¹  Carsten Lauridsen¹  Eva Fallentin¹  Lene Bæksgaard⁴  Klaus Fuglsang Kofoed³  Lars Bo Svendsen² 

[1] Department of Diagnostic Radiology, Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark; E-Mails:;Department of Surgery C, Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark; E-Mail:;Department of Cardiology, Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark; E-Mail:;Department of Oncology, Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark; E-Mail:

关键词: CT Perfusion;    cancer imaging;    abdominal imaging;    motion correction;   

DOI  :  10.3390/diagnostics3020261

来源: mdpi

【 摘 要 】

Computed Tomography (CT) Perfusion is an evolving method to visualize perfusion in organs and tissue. With the introduction of multidetector CT scanners, it is now possible to cover up to 16 cm in one rotation, and thereby making it possible to scan entire organs such as the liver with a fixed table position. Advances in reconstruction algorithms make it possible to reduce the radiation dose for each examination to acceptable levels. Regarding abdominal imaging, CT perfusion is still considered a research tool, but several studies have proven it as a reliable non-invasive technique for assessment of vascularity. CT perfusion has also been used for tumor characterization, staging of disease, response evaluation of newer drugs targeted towards angiogenesis and as a method for early detection of recurrence after radiation and embolization. There are several software solutions available on the market today based on different perfusion algorithms. However, there is no consensus on which protocol and algorithm to use for specific organs. In this article, the authors give an introduction to CT perfusion in abdominal imaging introducing technical aspects for calculation of perfusion parameters, and considerations on patient preparation. This article also contains clinical cases to illustrate the use of CT perfusion in abdominal imaging.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.