小贩
人工智能
计算机科学
分割
磁共振成像
机器学习
模式识别(心理学)
医学
放射科
业务
营销
作者
Roberto Souza,Oeslle Lucena,Julia Garrafa,David G. Gobbi,Marina Saluzzi,Simone Appenzeller,Letícia Rittner,Richard Frayne,Roberto de Alencar Lotufo
出处
期刊:NeuroImage
[Elsevier]
日期:2018-04-01
卷期号:170: 482-494
被引量:126
标识
DOI:10.1016/j.neuroimage.2017.08.021
摘要
This paper presents an open, multi-vendor, multi-field strength magnetic resonance (MR) T1-weighted volumetric brain imaging dataset, named Calgary-Campinas-359 (CC-359). The dataset is composed of images of older healthy adults (29–80 years) acquired on scanners from three vendors (Siemens, Philips and General Electric) at both 1.5 T and 3 T. CC-359 is comprised of 359 datasets, approximately 60 subjects per vendor and magnetic field strength. The dataset is approximately age and gender balanced, subject to the constraints of the available images. It provides consensus brain extraction masks for all volumes generated using supervised classification. Manual segmentation results for twelve randomly selected subjects performed by an expert are also provided. The CC-359 dataset allows investigation of 1) the influences of both vendor and magnetic field strength on quantitative analysis of brain MR; 2) parameter optimization for automatic segmentation methods; and potentially 3) machine learning classifiers with big data, specifically those based on deep learning methods, as these approaches require a large amount of data. To illustrate the utility of this dataset, we compared to the results of a supervised classifier, the results of eight publicly available skull stripping methods and one publicly available consensus algorithm. A linear mixed effects model analysis indicated that vendor (p−value<0.001) and magnetic field strength (p−value<0.001) have statistically significant impacts on skull stripping results.
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