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• W2149727021 abstract "Proton magnetic resonance spectroscopy (1H MRS) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) provide functional information, including vascular volume, vascular permeability and choline (Cho) metabolism. In this study, we applied these two imaging modalities to quantitatively characterize 36 malignant breast lesions in 32 patients and analyzed the correlation between them. Cho concentration was quantified by single-voxel 1H MRS using water as an internal reference. The measured Cho levels ranged from 0.32 to 10.47 mmol/kg, consistent with previously reported values. In 25 mass-type lesions, the Cho concentration was significantly correlated with tumor size (r=.69, P<.0002). In addition, the Cho level was found to be significantly higher in lesions presenting as mass-type lesions compared to non-mass-type diffuse enhancements (P=.035). The enhancement kinetics from tissues covered within each MRS voxel were measured and analyzed with a two-compartmental model to obtain pharmacokinetic parameters Ktrans and kep. A significant correlation was found between the Cho level and the pharmacokinetic parameter kep (r=.62, P<.0001), indicating that tissues with a high Cho level have higher wash-out rates in DCE MRI. The results suggest a correlation between Cho metabolism and angiogenesis activity, which might be explained by the association of Cho with cell replication and angiogenesis required to support tumor growth." @default.
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• W2149727021 date "2008-05-01" @default.
• W2149727021 modified "2023-10-16" @default.
• W2149727021 title "Quantitative correlation between 1H MRS and dynamic contrast-enhanced MRI of human breast cancer" @default.
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• W2149727021 doi "https://doi.org/10.1016/j.mri.2007.10.002" @default.
• W2149727021 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2653063" @default.
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