The value of synthetic MRI combined with reduced field of view intravoxel incoherent motion diffusion weighted imaging in preoperative predicting TN stage of rectal cancer
10.3969/j.issn.1002-1671.2025.01.013
- VernacularTitle:合成MRI联合小视野体素内不相干运动扩散加权成像术前预测直肠癌TN分期的价值
- Author:
Jinwei ZHANG
1
;
Xiaofeng LIU
;
Haoyu ZHU
;
Tao WANG
;
Shubin HUANG
;
Jiangning DONG
Author Information
1. 皖南医学院附属池州医院影像科,安徽 池州 247000
- Publication Type:Journal Article
- Keywords:
rectal cancer;
synthetic magnetic resonance imaging;
intravoxel incoherent motion diffusion weighted imaging
- From:
Journal of Practical Radiology
2025;41(1):58-62
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the feasibility and value of synthetic MRI combined with reduced field of view(r FOV)intravoxel incoherent motion diffusion weighted imaging(IVIM-DWI)in preoperative predicting TN stage of rectal cancer.Methods The ima-ging and clinical data of 40 patients with rectal cancer confirmed by operation and pathology were collected and divided into low T stage group(T1-T2 stage)and high T stage group(T3-T4 stage),N0 stage group and N1-N2 stage group according to postoperative pathological staging as the golden standard.Independent sample t-tests were conducted to compare the parameter differences of synthetic MRI[T1,T2,and proton density(PD)values]and IVIM-DWI(D,D*,and f values)between the two groups.Receiver operating charac-teristic(ROC)curves were used to evaluate the efficacy of each parameter with statistically significant differences.Results Signifi-cant differences were observed in the T2 values of synthetic MRI and the D and f values of IVIM-DWI between high and low T stage groups,as well as between N0 and N1-N2 stage groups(P<0.05).The D value showed the highest area under the curve(AUC)(AUC=0.888)in predicting T stage group,and the T2 value was predominant(AUC=0.790)for N stage group prediction.The combination models of T2,D,and f values yielded superior predictive capability for TN stage in preoperative predicting rectal cancer,with AUC of 0.890 and 0.807,respectively.Conclusion Synthetic MRI combined with r FOV IVIM-DWI is feasible in preoperative prediction of TN stage of rectal cancer,which shows a higher efficacy,and is a useful supplement to conventional MRI technology.
