We are thankful for the attention dedicated by Gutierrez to our recently published work (Perosa et al., 2020). In a letter to the editor the author refers to our paper, in which we presented how the double supply of the hippocampus by both the posterior cerebral artery (PCA) and anterior choroidal artery (AChA) was positively associated with hippocampal volume and better results in some cognitive domains (e.g. verbal memory). Gutierrez (2020) discusses the importance of accounting for the heterogeneity of the circle of Willis when considering these effects.

中文翻译：

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答复：Willis圈的异质性及其对海马灌注的影响。

感谢Gutierrez对我们最近发表的工作的关注（Perosa等。（2020年）。在给编辑的一封信中，作者提到了我们的论文，其中我们介绍了后脑动脉（PCA）和前脉络膜动脉（AChA）双重供应海马与海马体积呈正相关，并在治疗中取得更好的结果一些认知领域（例如口头记忆）。Gutierrez（2020）讨论了考虑这些影响时考虑威利斯环的异质性的重要性。