Sökning: onr:"swepub:oai:DiVA.org:liu-57906" >
Soft tissue discrim...
Soft tissue discrimination ex vivo by dual energy computed tomography
-
- Zachrisson, Helene (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Hälsouniversitetet
-
- Engström, E (författare)
- Linköpings universitet,Klinisk fysiologi,Hälsouniversitetet
-
- Engvall, Jan (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Hälsouniversitetet
-
visa fler...
-
- Wigström, Lars (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Hälsouniversitetet
-
- Smedby, Örjan (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinsk radiologi,Hälsouniversitetet
-
- Persson, Anders, 1953- (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinsk radiologi,Hälsouniversitetet
-
visa färre...
-
(creator_code:org_t)
- Elsevier, 2010
- 2010
- Engelska.
-
Ingår i: European Journal of Radiology. - : Elsevier. - 0720-048X .- 1872-7727. ; 75:2, s. E124-E128
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- PURPOSE: Dual Energy Computed Tomography (DECT) may provide additional information about the chemical composition of tissues compared to examination with a single X-ray energy. The aim of this in vitro study was to test whether combining two energies may significantly improve the detection of soft tissue components commonly present in arterial plaques. METHODS: Tissue samples of myocardial and psoas muscle, venous and arterial thrombus as well as fat from different locations were scanned using a SOMATOM Definition Dual Source CT system (Siemens AG, Medical Solutions, Forchheim, Germany) with simultaneous tube voltages of 140 and 80kV. The attenuation (Hounsfield units, HU) at 80 and 140kV was measured in representative regions of interest, and the association between measured HU values and tissue types was tested with logistic regression. RESULTS: The combination of two energy levels (80 and 140kV) significantly improved (p<0.001) the ability to correctly classify venous thrombus vs arterial thrombus, myocardium or psoas; arterial thrombus vs myocardium or psoas; myocardium vs psoas; as well as the differentiation between fat tissue from various locations. Single energy alone was sufficient for distinguishing fat from other tissues. CONCLUSION: DECT offers significantly improved in vitro differentiation between soft tissues occurring in plaques. If this corresponds to better tissue discrimination in vivo needs to be clarified in future studies.
Nyckelord
- Dual-source computed tomography; Dual energy CT imaging; Soft tissue characterization; Plaque
- MEDICINE
- MEDICIN
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas