Abstract
Three different DCE-MRI quantification methods: model-free-based, compartment-model-based and principal component analysis, are compared by evaluating parameter maps for histological defined volumes of vital and non-vital tumor tissue. To obtain an accurate spatial correspondence between histology and DCE-MRI, a two-step registration process was used involving dense histological sampling, a reference plane and an intermediate ex vivo MRI. Results show that the model-free parameter washout and the second principal component score can adequately separate vital from non-vital tumor tissue, with an accuracy of respectively 99.2% and 99.7%. The other model-free parameters and the compartment-model-based Ktrans show some overlap in values between vital and non-vital tissue. The first, third and fourth pc-score have limited discriminative power.
Original language | English |
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Title of host publication | 2012 9th IEEE International Symposium on Biomedical Imaging |
Subtitle of host publication | From Nano to Macro, ISBI 2012 - Proceedings |
Pages | 1044-1047 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 15 Aug 2012 |
Externally published | Yes |
Event | 2012 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2012 - Barcelona, Spain Duration: 2 May 2012 → 5 May 2012 Conference number: 9 |
Conference
Conference | 2012 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2012 |
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Abbreviated title | ISBI 2012 |
Country/Territory | Spain |
City | Barcelona |
Period | 2/05/12 → 5/05/12 |
Keywords
- DCE-MRI
- histology
- model-free analysis
- Principal Component Analysis
- standard Tofts model