常规MRI标准来区分进步疾病Treatment-Induced影响中高档(3 - 4年级)神经胶质瘤

MRI Characteristics With Significant Predictive Value (A) A 64-year old man with an isocitrate dehydrogenase (IDH)–wild-type (WT) glioblastoma treated with radiotherapy. Left: Preoperative baseline MRI. Right: Follow-up MRI (93 days after baseline) with multiple new contrast enhancements. (B) A 58-year-old man with an IDH-WT glioblastoma treated with temozolomide-based chemoradiation. Left: Baseline MRI of the surgical cavity after resection. Right: Follow-up MRI (91 days after baseline) with increased marginal enhancement of the surgical cavity. (C) A 65-year old woman with a glioblastoma, IDH status unknown, treated with radiotherapy. Left: T1-MRI with contrast agent. Right: Isointense ADC signal compared with healthy white matter. (D) A 66-year old man with an IDH-mutated astrocytoma grade 4 treated with temozolomide-based chemoradiation: soap bubble enhancement (small regions of necrosis¹⁷).