Volume 20 Issue 12
Dec.  2022
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MENG Qing-tao, LI Jun, JIANG Hui-dong, WANG Xue-qiang, XIANG Li. Value of vesical imaging reporting and data system combined with intravoxel incoherent motion sequences in the evaluation of muscle invasion in bladder cancer[J]. Chinese Journal of General Practice, 2022, 20(12): 2096-2100. doi: 10.16766/j.cnki.issn.1674-4152.002778
Citation: MENG Qing-tao, LI Jun, JIANG Hui-dong, WANG Xue-qiang, XIANG Li. Value of vesical imaging reporting and data system combined with intravoxel incoherent motion sequences in the evaluation of muscle invasion in bladder cancer[J]. Chinese Journal of General Practice, 2022, 20(12): 2096-2100. doi: 10.16766/j.cnki.issn.1674-4152.002778

Value of vesical imaging reporting and data system combined with intravoxel incoherent motion sequences in the evaluation of muscle invasion in bladder cancer

doi: 10.16766/j.cnki.issn.1674-4152.002778
Funds:

 KJ2021A 0312

 2020ZN008

  • Received Date: 2022-06-14
    Available Online: 2023-02-07
  •   Objective  To investigate the value of vesical imaging reporting and data system (VI-RADS) and intravoxel incoherent motion (IVIM) in the diagnosis of muscle invasive bladder cancer (MIBC).  Methods  A total of 50 cases (52 tumours) with surgery and pathologically confirmed bladder cancer at the First People' s Hospital of Chuzhou from June 2018 to February 2022 were analysed retrospectively. All patients underwent routine multiparameter MRI scan (including T2WI, DWI and DCE sequence) and IVIM sequence before surgery. Among the cases, 30 lesions were non-MIBC (NMIBC), and 22 were MIBC. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of different cut-off values in diagnosing MIBC were calculated by scoring MR images according to VI-RADS. IVIM parameters (ADCst, D, D* and f values) were measured. The diagnostic efficacy of VI-RADS, IVIM parameters and their combinations in muscle invasion was evaluated by receiver operating characteristic (ROC) curve.  Results  The ADCst, D and f values of the NMIBC group were significantly higher than those of the MIBC group (all P < 0.01), and the areas under curve (AUC) were 0.904, 0.889 and 0.780, respectively (all P < 0.01). Using VI-RADS score ≥ 4 as the cut-off, muscle invasion was predicted with the highest Youden index of 0.603 and AUC of 0.871. When the VI-RADS combined with ADCst and D values, the Yoden index rose to 0.636, and the AUC was 0.916.  Conclusion  The VI-RADS ≥ 4 and ADCst, D and f values decline, which indicate the greater possibility of muscle invasion of bladder cancer, and the combination of VI-RADS and ADCst and D values can significantly improve the diagnostic efficacy.

     

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