Differentiation of Recurrence from Radiation Necrosis in Gliomas Based on the Radiomics of Combinational Features and Multimodality MRI Images

Table 1

Clinical characteristics of glioma patients.

Characteristic	Type	Value
Sex	Male	24 (47%)
	Female	29 (53%)
Age	Mean	47.6 (10–74)
Histology	Glioblastoma	12 (23.5%)
	Astrocytoma	14 (27.5%)
	Ependymoma	3 (5.9%)
	Mixed glioma	22 (43.1%)
Grade	High (III-IV)	32 (62.7%)
	Low (I-II)	19 (37.3)
Recurrence or necrosis	Recurrence	35 (68.6%)
	Necrosis	16 (31.4%)
Time interval	Mean	1.8 years
Tumor location	Frontal lobe	21 (41.2%)
	Temporal lobe	22 (43.1%)
	Cerebellum	2 (3.9%)
	Occipital lobe	3 (5.9%)
	Parietal lobe	3 (5.9%)

Time interval refers to the time point from first radiotherapy to diagnosis of necrosis or recurrence. The grade corresponds to the pathological outcome of patients’ first surgery.