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https://doi.org/10.1093/neuonc/nov097

has been cited by the following article:

• TITLE: Magnetic Resonance Spectroscopy and Prognostic Analysis of Molecular Subtypes of Medulloblastoma

  AUTHORS: Yuting Zhang, Lusheng Li

  KEYWORDS: Medulloblastoma, Molecular Subtypes, MRS, 5-Year EFS

  JOURNAL NAME: Open Journal of Clinical Diagnostics, Vol.10 No.3, September 25, 2020

  ABSTRACT: Aim: The aim of this study was to investigate whether magnetic resonance spectrum (MRS) and MR imaging features can be used for non-invasive medulloblastoma subgrouping, and analyse patient characteristics and prognosis of molecular subtypes of medulloblastoma. Material and Methods: 32 patients with medulloblastoma underwent MRI prior to surgical resection, 16 of them underwent MRS. MR imaging features and metabolites measured by MRS were analysed to distinguish molecular subtypes of medulloblastoma. Patient demographics, histopathological types, and prognosis of different molecular subtypes were analysed and compared respectively. Results: MRS and MR imaging features differed from different individuals, but without statistical significance that involves acquiring non-quantitative MR imaging features and NAA/Cr, Cho/Cr, Lip/Cr, Glu and Gln/Cr ratio, to be used to determine molecular subtypes. There was no significant difference of the three molecular subtypes in age, gender and pathological type. The 5-year event-free survival (EFS) of SHH, WNT and non SHH/WNT subtype respectively were 75%, 57.1%, 38.1%, with no significant difference (p = 0.382). 5-year EFS of non SHH/WNT subtype was significantly higher in ≤3 years old group than >3 years old group (p = 0.047). Conclusion: MRS and MR imaging features can’t be used to determine molecular subtypes based on our small sample study. There was no significant difference of the prognosis in the three molecular subtypes. The prognosis of ≤3 years old group of non SHH/WNT subtype is better than >3 years old group.