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• CLINICAL ARTICLE •
Application of high resolution dynamic enhanced MR scan in TN staging and operation mode selection of rectal cancer before operation
LIU Jinling  LIN Jizheng  SU Xiao  QU Xueting  ZHANG Liang 

Cite this article as: Liu JL, Lin JZ, SU X, et al. Application of high resolution dynamic enhanced MR scan in TN staging and operation mode selection of rectal cancer before operation[J]. Chin J Magn Reson Imaging, 2021, 12(1): 38-42. DOI:10.12015/issn.1674-8034.2021.01.008.


[Abstract] Objective To investigate the application value of high resolution MRI dynamic enhanced scan in TN staging and operation mode selection of rectal cancer before operation.Materials and Methods A retrospective analysis was performed on 154 patients with rectal cancer confirmed by surgery and pathology in our hospital. All the patients received high resolution dynamic enhanced MR scan before surgery and underwent tumor TN staging. According to the results of preoperative staging, the operative method was proposed, and the difference between the preoperative planned and the final operative method was compared.Results Among the 154 patients with rectal cancer, the accuracy of T staging and N staging by high resolution MRI was 87.7％ and 38.9％, respectively, The coincidence rate between the proposed operation and the actual one was 95.5％, with no statistically significant difference (P=0.480). The proposed operation and the actual one were highly consistent (Kappa value=0.873). The coincidence rate between the proposed surgical method and the actual surgical method was 98.2％ in 117 patients with medium and high rectal cancer, and the proposed surgical method was highly consistent with the actual surgical method (Kappa value=0.915). In 37 cases of low rectal cancer, the coincidence rate between the proposed operation method and the actual operation method was 86.5％, and the proposed operation method was highly consistent with the actual operation method (Kappa value=0.643).Conclusions High-resolution MRI dynamic enhancement scanning for sensitivity and accuracy of the preoperative T staging of rectal cancer specific degree is higher, and the pathological diagnosis phase close, to formulate the operation mode and the actual operation mode high consistency, high resolution MRI dynamic enhancement scanning for the preoperative T staging of rectal cancer and the selection of surgical procedure with high clinical application value.
[Keywords] rectal cancer；magnetic resonance imaging；high resolution；tumor stage；dynamic enhancement；surgical options

LIU Jinling1   LIN Jizheng1   SU Xiao1   QU Xueting2   ZHANG Liang1*  

1 Department of Radiology, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, China

2 Department of Radiology, Qingdao Municipal Hospital, Shandong Province, Qingdao 266003, China

*Corresponding author: Zhang L, E-mail: xiaozpl@163.com

Conflicts of interest   None.

Received  2020-08-06
Accepted  2020-11-20
DOI: 10.12015/issn.1674-8034.2021.01.008
Cite this article as: Liu JL, Lin JZ, SU X, et al. Application of high resolution dynamic enhanced MR scan in TN staging and operation mode selection of rectal cancer before operation[J]. Chin J Magn Reson Imaging, 2021, 12(1): 38-42. DOI:10.12015/issn.1674-8034.2021.01.008.

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