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Multi-parameter MR scan was used to evaluate the clinical significance of T staging of renal cell carcinoma
LIU Tiegang  MA Mingming  QIN Naishan 

Cite this article as: Liu TG, Ma MM, Qin NS. Multi-parameter MR scan was used to evaluate the clinical significance of T staging of renal cell carcinoma[J]. Chin J Magn Reson Imaging, 2021, 12(7): 60-63. DOI:10.12015/issn.1674-8034.2021.07.012.


[Abstract] Objective To evaluate the accuracy of renal cell carcinoma (RCC) T staging by multi-parameter MR scan. Materials and methods: Through ethical approval, collected in June 2012 to June 2018 in Peking university first hospital uropoiesis surgical department confirmed by surgery pathology of renal cell carcinoma of 187 cases of patients with preoperative renal MR image data, with the pathological results as the gold standard, on the basis of renal cell carcinoma TNM staging T staging criteria evaluation: (1) The different sequence images (T2WI, DWI and enhanced scan portal T1WI) can measure the tumor size on the accuracy of the largest. (2) Accuracy of tumor invasion of perirenal/renal sinus fat. (3) Accuracy of thrombus with renal vein tumor. Kappa test was used to evaluate the consistency of multi-parameter MR and surgical pathology to evaluate the T staging of RENAL cell carcinoma.Results The maximum diametres measured by T2WI, DWI and enhanced T1WI sequence images were (5.22±3.28) cm, (5.03±3.08) cm and (5.31±3.37) cm, respectively. The maximum diametres measured by pathology were (5.24±3.59) cm, and there was no significant difference between the four groups by Wilcoxon rank sum test. The sensitivity, specificity, positive predictive value and negative predictive value were 88.7%, 88.1%, 74.6% and 95.2%, respectively. The sensitivity,specificity,positive predictive value and negative predictive value of MR in the evaluation of renal vein tumor thrombus were 90.9%, 99.2%, 98.0% and 96.4%, respectively. The weighted Kappa value of MR for determining T stage of renal carcinoma and pathological tumor was 0.81.Conclusions Preoperative multi-parameter MR examination for RCC patients can accurately determine tumor T stage and provide effective information for the selection of clinical treatment.
[Keywords] multi-parameter；renal；renal cells carcinoma；tumor T stage；enhanced magnetic resonance imaging

LIU Tiegang1   MA Mingming2   QIN Naishan2*  

1 Department of CT/MR, People's Hospital of Horqin Youyiqianqi, Xing'an League, Inner Mongolia, Ulanhot 137400, China

2 Department of Radiology, Peking University First Hospital, Beijing 100032, China

Qin NS, E-mail: docqin730@sina.com

Conflicts of interest   None.

Received  2020-10-12
Accepted  2021-03-25
DOI: 10.12015/issn.1674-8034.2021.07.012
Cite this article as: Liu TG, Ma MM, Qin NS. Multi-parameter MR scan was used to evaluate the clinical significance of T staging of renal cell carcinoma[J]. Chin J Magn Reson Imaging, 2021, 12(7): 60-63. DOI:10.12015/issn.1674-8034.2021.07.012.

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