Value of intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) in prediction of prognosis of hepatocellular carcinoma after transcatheter arterial chemoembolization
To predict the value of intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) in prediction of progression-free survival (PFS) of hepatocellular carcinoma (HCC) after transcatheter arterial chemoembolization (TACE).
Methods:
Ninety patients were enrolled in this study from September 30
th
2014 to September 30
th
2017. A total of 14 parameters including 6 clinical indexes: gender
age
size of lesion
tumor thrombus
AFP and ALT values; and 8 functional MRI indexes: pretreatment ADC
D
D*
f
posttreatment ADC
D
D* and f were analyzed by multivariate analysis. Independent sample t test
ANOVA
Kaplan-Meier survival curve
Log-Rank test and Cox regression analysis were used to determinate the prognostic value of IVIM parameters and clinical indicators.
Results:
Gender
age
pretreatment D*
f and posttreatment D* could predict the prognosis of HCC after TACE (
P
gender
=0.030
P
age
=0.005
P
pretreatment D*
0.001
P
pretreatment f
=0.007,
P
posttreatment D*
0.001). Using median (age=53 years
pretreatment D*=14.110
-3
mm
2
/s
pretreatment f=23.63%
posttreatment D*=11.910
-3
mm
2
/s) as cut-off value
age and pretreatment D* showed statistical significance in predicting the prognosis of HCC (
P
age
=0.027
P
pretreatment D*
=0.003).
Conclusion:
Age and pretreatment D* value can predict the prognosis of HCC after TACE.