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001-es BibID:BIBFORM070522
Első szerző:Béres Mónika (képalkotó diagnoszta, eü. mérnökinformatikus)
Cím:2D and 3D texture analysis to differentiate brain metastases on MR images : proceed with caution / Béresová Monika, Larroza Andrés, Arana Estanislao, Varga József, Balkay László, Moratal David
Dátum:2018
ISSN:0968-5243
Megjegyzések:ObjectiveTo find structural differences between brain metastases of lung and breast cancer, computing their heterogeneity parameters by means of both 2D and 3D texture analysis (TA).Materials and methodsPatients with 58 brain metastases from breast (26) and lung cancer (32) were examined by MR imaging. Brain lesions were manually delineated by 2D ROIs on the slices of contrast-enhanced T1-weighted (CET1) images, and local binary patterns (LBP) maps were created from each region. Histogram-based (minimum, maximum, mean, standard deviation, and variance), and co-occurrence matrix-based (contrast, correlation, energy, entropy, and homogeneity) 2D, weighted average of the 2D slices, and true 3D TA were obtained on the CET1 images and LBP maps.ResultsFor LBP maps and 2D TA contrast, correlation, energy, and homogeneity were identified as statistically different heterogeneity parameters (SDHPs) between lung and breast metastasis. The weighted 3D TA identified entropy as an additional SDHP. Only two texture indexes (TI) were significantly different with true 3D TA: entropy and energy. All these TIs discriminated between the two tumor types significantly by ROC analysis. For the CET1 images there was no SDHP at all by 3D TA.ConclusionOur results indicate that the used textural analysis methods may help with discriminating between brain metastases of different primary tumors.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
Computer-assisted
Image processing
Texture analysis
Magnetic resonance imaging
Brain neoplasms
Metastasis
Breast cancer
Lung cancer
Megjelenés:Magnetic Resonance Materials In Physics Biology And Medicine. - 31 : 2 (2018), p. 285-294. -
További szerzők:Larroza, Andrés Arana, Estanislao Varga József (1955-) (fizikus) Balkay László (1963-) (biofizikus) Moratal, David
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