- ISSN: 1573-4056
- E-ISSN: 1875-6603
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oa Evaluation of Combining Transrectal Biplane Ultrasonography with Sound Touch Elastography in Preoperative T-Staging of Rectal Cancer
- Source: Current Medical Imaging, Volume 21, Issue 1, Jan 2025, E15734056366881
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- 11 Nov 2024
- 20 Mar 2025
- 30 Jun 2025
Abstract
An accurate staging diagnosis of rectal cancer holds crucial importance in determining the appropriate treatment plan for patients.
To evaluate the application of transrectal biplane ultrasonography combined with Sound Touch Elastography (STE) technology in preoperative uT stage of rectal cancer.
A retrospective analysis was conducted on the ultrasonographic data of 32 patients. The STE values within the tumor and the adjacent peritumoral fat tissue were recorded, and the ratio of STE values between adjacent and distant peritumoral fat tissues was defined as the Stiffness Ratio (SR).
The STE values were not statistically significantly different between the high and low pT stage groups within tumors (P > 0.05). However, there were statistically significant differences in the STE values of the adjacent peritumoral fat tissue and the SR between the two groups (P < 0.05). Binary logistic regression analysis showed that the SR was a relevant factor in distinguishing high and low pT stages of rectal cancer. The optimal cut-off value of the SR was 1.915, with a sensitivity of 95.7% and a specificity of 88.9% in predicting high pT stages of rectal cancer. The consistency observed between traditional TRUS and pathological staging in differentiating between high and low pT stages of rectal cancer was moderate. However, the incorporation of SR had enhanced this consistency to a favorable level.
The combination of TRUS and STE technology enhanced the accuracy of pT stage in rectal cancer, with SR serving as a critical indicator for predicting high pT stages and constituting a valuable supplement to traditional TRUS.
