To evaluate the diagnostic value of susceptibility weig
hted imaging (SWI) and intravoxel incoherent motion (IVIM) in grading of brain glioma.
Methods:
Including 104 patients with glioma (33 patients with low-grade glioma
71 patients with high-grade glioma)
SWI and IVIM were performed before operation. All cases were confirmed by postoperative histopathology. Recorded the intratumoral susceptibility signal intensity (ITSS)
fast apparent diffusion coefficient (fast ADC)
slow apparent diffusion coefficient (slow ADC)
f value and standard apparent diffusion coefficient (standard ADC). Analysed all parameters with statistical methods.
Results:
The fast ADC
slow ADC
standard ADC and f value of the high-grade glioma group were (31.212.1)10
-3
(0.460.22)10
-3
(0.920.22) 10
-3
mm
2
/s
and 0.480.13. The fast ADC
slow ADC
standard ADC
and f value of the low-grade glioma group were (14.06.9)10
-3
(0.880.24)10
-3
(1.080.25)10
-3
mm
2
/s
and 0.290.13. ITSS
fast ADC and f value of high-grade glioma group were higher than those of low-grade glioma group
the differences were statistically significant(
P
0.05). Slow ADC and standard ADC of high-grade glioma group were lower than those of low-grade glioma group
the differences were statistically significant(
P
0.05).
Conclusion:
By comparing and combining SWI and IVIM
the sensitivity and specificity of preoperative glioma grading were further improved.