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利用超高分辨率定量磁共振成像对人类大脑皮层下进行自动分割和图谱绘制。

Automated parcellation and atlasing of the human subcortex with ultra-high resolution quantitative MRI.

作者信息

Bazin Pierre-Louis, Groot Josephine M, Miletic Steven, Groenewegen Lysanne, Trutti Anne C, Mulder Martijn J, Forstmann Birte U, Alkemade Anneke

机构信息

Full brain picture Analytics, Leiden, The Netherlands.

Institute for Psychology, UiT - The Arctic University of Norway, Tromsø, Norway.

出版信息

Imaging Neurosci (Camb). 2025 Apr 29;3. doi: 10.1162/imag_a_00560. eCollection 2025.

Abstract

Brain mapping efforts are time-consuming and benefit from an incremental approach. This allows periodic updates with newly acquired data, analysis methods, and resulting atlases and automated delineation approaches. Here, we present a new release of the Amsterdam Ultra-high field adult lifespan database (AHEAD). The AHEAD dataset is now extended with 105 7 Tesla slab quantitative MRI contrasts covering the subcortex at a 0.5 mm isotropic resolution. The data were collected from 105 participants covering the adult lifespan together with the previously released whole-brain acquisitions. Whole-brain and slab data now have been co-registered, manually delineated, and used for the expansion of the Multi-contrast anatomical subcortical structures parcellation (MASSP) algorithm, which now allows the individual delineation of 19 additional anatomical structures. MASSP2.0 can be used to delineate 35 structures in individual brain contrasts, creating a total of 63 created masks. Quantitative MRI maps, derived probability maps for anatomical structures, as well as MASSP2.0 are now freely available for further analyses.

摘要

脑图谱研究工作耗时且采用渐进式方法会更有成效。这使得能够利用新获取的数据、分析方法以及由此产生的图谱和自动描绘方法进行定期更新。在此,我们发布了阿姆斯特丹超高场成人寿命数据库(AHEAD)的新版本。AHEAD数据集现扩展了105个7特斯拉层定量MRI对比数据,以0.5毫米各向同性分辨率覆盖皮层下区域。这些数据是从105名涵盖成人寿命阶段的参与者中收集的,同时还有之前发布的全脑采集数据。全脑数据和层数据现已进行了配准、手动描绘,并用于扩展多对比解剖皮层下结构分割(MASSP)算法,该算法现在能够单独描绘另外19个解剖结构。MASSP2.0可用于在个体脑对比中描绘35个结构,总共创建63个掩码。定量MRI图谱、解剖结构的派生概率图谱以及MASSP2.0现在均可免费获取以供进一步分析。

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