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Abstract #2302

The Value of Amide Proton Transfer MRI in the Grading of Clear Cell Renal Cell Carcinoma : Comparison With Diffusion-Weighted Imaging

Xiaotong Yang1, Hui Gao1, Chen Shen1, Yanting Fan1, Chuanchen Zhang1, Daliang Liu1, Peng Wu2, Lu Han2, and Yan Bai1
1Liaocheng People's Hospital, Liaocheng, China, 2Philips Healthcare, Shanghai, China

Synopsis

Keywords: CEST / APT / NOE, CEST / APT / NOE

Motivation: Clear cell renal cell carcinoma (ccRCC) is the most prevalent renal cell carcinoma. Preoperative determination of ccRCC grading is crucial for appropriate surgical decision-making and prognosis.

Goal(s): This study aims to evaluate the efficacy of amide proton transfer-weighted (APTw) imaging and diffusion-weighted imaging for the differentiation of low-grade ccRCC from high-grade ccRCC.

Approach: The diagnostic efficacy was analyzed using receiver operating characteristic (ROC) curves.

Results: The area under the ROC curve (AUC) for differentiating high-grade from low-grade tumors was 0.898 for MTRasym, 0.817 for ADC, and 0.928 for the combined metrics.

Impact: APTw MRI holds potential as a valuable supplementary sequence to conventional MRI for the grading of ccRCC.

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