GAGL Dataset

GAstric GLands (GAGL) dataset. - v.1

GAGL 'minimal dataset' (a part of GAGL dataset) consists of 9 downsampled WSI including 3 normal, 3 gastric atrophic and 3 intestinal metaplasia cases. The minimal dataset could be used for the validation of the study findings of the following study: A digital pathology workflow for the segmentation and classification of gastric glands: Study of gastric atrophy and intestinal metaplasia cases.

GAGL dataset consists of 85 WSI, collected from 20 patients. Gastric tissues were collected at University College London Hospital NHS trust, with ethical approval (research ethics committee (REC) reference: 15/YH/0311, & 19/LO/0089), with informed consent taken for prospective tissue collection. Samples were collected prospectively from patients undergoing gastrectomy for cancer, or sleeve gastrectomy for weight loss, with archival tissue used from endoscopic surveillance biopsies.  Tissue underwent routine Hematoxylin & Eosin (H&E) staining. More specifically, the dataset includes 14 normal, 26 GA and 45 IM images.

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胃腺体（Gastric GLands, GAGL）数据集 —— 版本1

GAGL最小数据集（GAGL数据集的子集）包含9张下采样后的全视野组织切片（Whole Slide Image, WSI），涵盖3例正常胃组织、3例胃萎缩组织及3例肠上皮化生组织。该最小数据集可用于验证以下研究的实验结果：《面向胃腺体分割与分类的数字病理工作流——胃萎缩与肠上皮化生病例研究》

完整GAGL数据集共包含85张全视野组织切片，采集自20名患者。胃组织样本采集自伦敦大学学院医院国民保健信托基金（University College London Hospital NHS Trust），研究已获得伦理委员会批准（研究伦理委员会（Research Ethics Committee, REC）编号：15/YH/0311及19/LO/0089），并已获取前瞻性样本采集的知情同意。样本前瞻性采集自因癌症接受胃切除术、或因减重接受袖状胃切除术的患者，同时纳入内镜监测活检获取的存档组织样本。所有组织样本均接受常规苏木精-伊红（Hematoxylin & Eosin, H&E）染色。具体而言，该数据集包含14例正常组织样本、26例胃萎缩（Gastric Atrophy, GA）样本及45例肠上皮化生（Intestinal Metaplasia, IM）样本。

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