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- W52294893 abstract "Conventional magnetic resonance imaging (MRI) is essential for the management of childhood brain tumours. However, it is increasingly being supplemented with functional techniques such as magnetic resonance spectroscopy (MRS). This thesis investigates how pre-treatment single voxel MRS can aid in diagnosis and surveillance of paediatric brain tumours and identify prognostic biomarkers. Data from multiple centres, scanners from three leading manufacturers and field strengths of 1.5 T and 3 T are incorporated. MRS was analysed using TARQUIN software with metabolite peaks fitted using a simulated basis set to provide metabolite concentrations. Univariate and multivariate statistical tests were used to compare variables. Multi-scanner spectroscopy detected significant differences in common and rare paediatric brain tumours. Diagnostic metabolite profiles were able to confirm tumour on follow-up imaging. Elevated creatine and total choline determined good prognosis in medulloblastoma. Myo-inositol and citrate aided in the characterisation of diffuse pontine gliomas (DIPG). While conventional MRI was unable to identify prognostic markers for DIPG, elevated taurine was found to be significantly associated with a better prognosis. The results encourage the use of MRS as an adjunct to conventional MRI in routine clinical practice. For future studies, accurate assignment of biomarkers will be determined in tumour tissue using in vitro high-resolution spectroscopy methods." @default.
- W52294893 created "2016-06-24" @default.
- W52294893 creator A5049462089 @default.
- W52294893 date "2014-07-01" @default.
- W52294893 modified "2023-09-25" @default.
- W52294893 title "Single voxel proton magnetic resonance spectroscopy of childhood brain tumours" @default.
- W52294893 hasPublicationYear "2014" @default.
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