外周血中性粒细胞髓过氧化物酶表达的流式细胞分析及骨髓增生异常综合征

数据集获取

源站：https://clinicaltrials.gov/study/NCT03363399

标准获取流程：

1. 访问源站链接，注册/登录账号；
2. 进入数据集详情页，按页面指引申请权限或直接下载；
3. 部分平台提供 SDK，例如：
   • OpenDataLab: pip install openxlab 后 openxlab.dataset.get(...)
   • ModelScope: pip install modelscope 后 modelscope download
   • 天池: 登录后页面提供直链下载
     以源站「数据下载/使用文档」页面为准。

数据说明

Conditions: Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia. The primary objective of MPO-MDS-pilot study is to estimate the accuracy of flow cytometric analysis of neutrophil myeloperoxidase expression in peripheral blood for the diagnosis of myelodysplastic syndromes (MDS) and/or chronic myelomonocytic leukemia (CMML). The secondary objectives are: 1. to provide accuracy estimates for prespecified thresholds of neutrophil myeloperoxidase expression in peripheral blood in ruling out MDS and/or CMML. 2. to estimate the prevalence of alternate diagnosis established by bone marrow cytomorphology. The MPO-MDS-pilot project is a multicenter, phase II, cross-sectional, diagnostic accuracy study of consecutive unselected patients referred for suspected MDS or CMML. Screening: All consecutive patients referred to the immuno-hematology lab at the study sites for suspicion of MDS will be screened for eligibility. A lab physician will review inclusion and exclusion criteria, using computerized medical and laboratory records. Recruitment: Participants will be included in the study once all the screening activities have been conducted and only if the patient meets all inclusion and none exclusion criteria. The consent for flow cytometry analysis of peripheral blood sample and data collection through chart review will be sought under a regime of “non-opposition” (opt-out): after appropriate written information is delivered, cross-sectional data will be collected except in case of opposition from the patient. All patients included in the study will be assigned a unique patient identification number. This number will be used to identify the patient throughout the study. Index test: Flow cytometry analysis of neutrophil myeloperoxidase expression in peripheral blood will be performed within 24 h of MDS diagnostic evaluation and blinded to the reference standard. Reference standard: The diagnosis of MDS will be established according to the World Health Organization (WHO) classification, based on clinical data, peripheral blood cytopenia, cyto

数据加载示例（图像类）

from PIL import Image
import glob, os

files = (glob.glob(os.path.join(path, "**", "*.png"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.jpg"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.tif"), recursive=True))
print("图像文件数:", len(files))
img = Image.open(files[0]); print("尺寸/模式:", img.size, img.mode)

# torchvision Dataset 方式:
# from torchvision import datasets
# ds = datasets.ImageFolder(path)  # 要求 子目录=类别

目录组织与标注格式以源站说明和下载后实际文件为准。