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Abstract #3582

Quantitative and qualitative parameters of DCE-MRI predict CDKN2A/B homozygous deletion in gliomas

Huiquan Yang1, Zhengyang Zhu1, Xin Zhang1, and Bing Zhang1
1Nanjing Drum Dower Hospital, Nanjing, China

Synopsis

Keywords: Tumors (Pre-Treatment), Tumor

Motivation: Homozygous deletion (HD) of cyclin-dependent kinase inhibitor 2A/B (CDKN2A/B) holds important prognostic value in gliomas.

Goal(s): This study aims to explore the predictive potential of conventional MRI imaging parameters combined with dynamic contrast-enhanced (DCE) MRI parameters in predicting CDKN2A/B HD status in gliomas.

Approach: Conventional MRI features and DCE-MRI qualitative parameter time-intensity curve types, quantitative parameters Ktrans, Kep, Ve, Vp, and iAUC were obtained. Logistic regression models for prediction of CDKN2A/B HD status were constructed.

Results: Ktrans can serve as valuable predictive parameters for identifying CDKN2A/B HD status in all glioma patients as well as patients with IDH-mutant or IDH-wild gliomas.

Impact: Our findings provide a foundation for precise preoperative non-invasive diagnosis and personalized treatment approaches for glioma patients.

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