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Updated: Jul 26, 2026

Quantifying Cognitive Decrements Caused by Cranial Radiotherapy
Published on: October 18, 2011
Dynamic changes in brain glymphatic function during preoperative chemotherapy in breast cancer patients
Yajuan Gao1, Yang Wang2, Jiabin Lu1
1Department of Radiology, Peking University Third Hospital, Beijing, China.
Objective:
The current study aimed to investigate the dynamic changes in brain glymphatic function during chemotherapy in breast cancer patients (BCP) and their correlation with cognitive function.
Materials And Methods:
A total of 40 healthy female participants (control group) and 80 female BCP were included. Various cognitive assessment tools were used to evaluate cognitive function. Diffusion tensor imaging along the perivascular space was employed to measure brain glymphatic function.
Results:
Following chemotherapy, BCP exhibited a significant decline in various cognitive scores. After chemotherapy, the along the perivascular space index, a parameter indicating brain glymphatic function, was slightly higher than that at baseline and the control group levels and was correlated with cognitive scores.
Conclusion:
This study unveiled a close relationship between the dynamic changes in brain glymphatic function after chemotherapy and cognitive function in BCP. Our findings contribute to a deeper understanding of the brain mechanisms underlying chemotherapy-related cognitive impairment and provide a theoretical basis for future interventions and treatments. In addition, they offer a new perspective for exploring the relationship between brain function and cognitive states.

