title: Radiological features combined with IDH1 status for predicting the survival outcome of glioblastoma patients.
abstract: BACKGROUND
  Radiological characteristics may reflect the biological features of brain tumors and may be associated with genetic alterations that occur in tumorigenesis. This study aimed to investigate the relationship between radiological features and IDH1 status as well as their predictive value for survival of glioblastoma patients.
  
  
  METHODS
  The clinical information and MR images of 280 patients with histologically confirmed glioblastoma were retrospectively reviewed. The radiological characteristics of tumors were examined on MR images, and the IDH1 status was determined using DNA sequencing for all cases. The Kaplan-Meier method and Cox regression model were used to identify prognostic factors for progression-free and overall survival.
  
  
  RESULTS
  The IDH1 mutation was associated with longer progression-free survival (P = .022; hazard ratio, 0.602) and overall survival (P = .018; hazard ratio, 0.554). In patients with the IDH1 mutation, tumor contrast enhancement and peritumoral edema indicated worse progression-free survival (P = .015 and P = .024, respectively) and worse overall survival (P = .024 and P = .032, respectively). For tumors with contrast enhancement, multifocal contrast enhancement of the tumor lesion was associated with poor progression-free survival (P = .002) and poor overall survival (P = .010) in patients with wild-type IDH1 tumors.
  
  
  CONCLUSIONS
  Combining the radiological features and IDH1 status of a tumor allows more accurate prediction of survival outcomes in glioblastoma patients. The complementary roles of genetic changes and radiological features of tumors should be considered in future studies.
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Kai
authors.initials: K
authors.lastname: Wang
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Yinyan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Xing
authors.initials: X
authors.lastname: Fan
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Jiangfei
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Guilin
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Jieling
authors.initials: J
authors.lastname: Ma
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Jun
authors.initials: J
authors.lastname: Ma
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Tao
authors.initials: T
authors.lastname: Jiang
authors.affiliation: Department of Neuroradiology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (K.W., J.M., J.M., J.D.); Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (Y.W., X.F., J.W., T.J.); Department of Pathology, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China (G.L.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.W., X.F., T.J., J.D.); Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing, China (T.J.).
authors.forename: Jianping
authors.initials: J
authors.lastname: Dai
mesh_terms: D014408:Biomarkers, Tumor / Q000235:genetics*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000235:genetics / Q000401:mortality* / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D005909:Glioblastoma / Q000000981:diagnostic imaging / Q000235:genetics / Q000401:mortality* / Q000473:pathology; D006801:Humans; D007521:Isocitrate Dehydrogenase / Q000235:genetics*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009154:Mutation / Q000235:genetics*; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate
chemical_list: D014408:Biomarkers, Tumor; D007521:Isocitrate Dehydrogenase; C543588:IDH1 protein, human
keywords: IDH1; glioblastoma; radiology; survival outcome