Eliminated risk of iodine contrast cancellation with multibin spectral CT
2013 (English)In: Physics in Medicine and Biology, ISSN 0031-9155, E-ISSN 1361-6560, Vol. 58, no 14, N201-N209 p.Article in journal (Refereed) Published
This note compares the extent of contrast cancellation induced by iodinated contrast agents in energy integrating and photon counting multibin CT images. The contrast between a hypodense target and soft tissue is modeled for the two systems for a range of iodine concentrations and tube voltages. In energy integrating systems, we show that the contrast vanishes for low concentrations of iodine whereas the same effect is not seen in multibin systems. We conclude that it is the ability of multibin systems to apply weighting schemes post-acquisition that allows the operator to eliminate the risk of contrast cancellation between iodinated targets and the background.
Place, publisher, year, edition, pages
Institute of Physics (IOP), 2013. Vol. 58, no 14, N201-N209 p.
Integrating systems, Iodinated contrast agents, Iodine concentration, Low concentrations, Photon counting, Soft tissue, Tube voltages, Weighting scheme
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-125554DOI: 10.1088/0031-9155/58/14/N201ISI: 000321243600002ScopusID: 2-s2.0-84879993238OAI: oai:DiVA.org:kth-125554DiVA: diva2:640055
QC 201308122013-08-122013-08-092015-03-03Bibliographically approved