左心室辅助装置植入学习曲线数据集

数据集获取（Figshare）

• 源站标题：Learning Curve in Left Ventricular Assist Device Implantation: Low Volumes Do Not Equate Bad Outcomes
• DOI：10.6084/m9.figshare.21557075.v1
• 发布日期：2022-11-15
• 文件数：9 个
• 文件总体积：3.49 MB
• 源站页面：https://scielo.figshare.com/articles/dataset/Learning_Curve_in_Left_Ventricular_Assist_Device_Implantation_Low_Volumes_Do_Not_Equate_Bad_Outcomes/21557075

命令行下载

curl -L -o "6dbe54774e89c46872a44bfccea6897bbb619702.tif" "https://ndownloader.figshare.com/files/38213300"
curl -L -o "3603857e5901bc169bb87915cb906091ea443870.png" "https://ndownloader.figshare.com/files/38213303"
curl -L -o "07fb224ae3efabce5eed2bcce31d394053c70757.jpg" "https://ndownloader.figshare.com/files/38213306"
curl -L -o "1ab9e3effefc58706e504ad496facc3281e8eba3.tif" "https://ndownloader.figshare.com/files/38213309"
curl -L -o "5e37366782eb69662f6c2532ddb15a6a94bedb69.png" "https://ndownloader.figshare.com/files/38213312"
curl -L -o "8907fcf9a16119d9a0a1948df8e643717fcbc1c6.jpg" "https://ndownloader.figshare.com/files/38213315"
curl -L -o "9b6c11abc6637247552c4c1d43bc591248d1cd99.tif" "https://ndownloader.figshare.com/files/38213318"
curl -L -o "921cbe747cf1a68e575d968fa337388c9058a4fb.png" "https://ndownloader.figshare.com/files/38213321"

文件清单

• 6dbe54774e89c46872a44bfccea6897bbb619702.tif（449.94 KB）
• 3603857e5901bc169bb87915cb906091ea443870.png（315.99 KB）
• 07fb224ae3efabce5eed2bcce31d394053c70757.jpg（6.96 KB）
• 1ab9e3effefc58706e504ad496facc3281e8eba3.tif（1.28 MB）
• 5e37366782eb69662f6c2532ddb15a6a94bedb69.png（871.35 KB）
• 8907fcf9a16119d9a0a1948df8e643717fcbc1c6.jpg（6.23 KB）
• 9b6c11abc6637247552c4c1d43bc591248d1cd99.tif（383.28 KB）
• 921cbe747cf1a68e575d968fa337388c9058a4fb.png（169.10 KB）
• 7f04dbbc54b43a1903429ec87b6c04c4d430789c.jpg（4.75 KB）

文件总体积 3.49 MB（源站 API 实测）。

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。

数据说明

ABSTRACT Introduction: Most implantations of left ventricular assist devices (LVAD) are performed in low-volume centers. This study aimed to evaluate the procedural learning curve of HeartMate II (HM2) implantations by comparing outcomes between two time periods in a low-volume center. Methods: All 51 consecutive patients undergoing HM2 implantation between January 2009 and December 2017 were reviewed and allocated into 2 groups: early-era group (from 2009 to 2014; n=25) and late-era group (from 2015 to 2017; n=26). The primary outcome was the 90-day mortality rate, and the secondary outcome was a composite of mortality, neurological event, reoperation for bleeding, need for temporary right ventricular assist device, and pump thrombosis at 90 days. Median follow-up time was 51 months (0-136). A cumulative sum (CUSUM) control analysis was used to establish a threshold of implantations that optimizes outcomes. Results: Patients in the early era had a higher rate of diabetes, previous stroke, and inotrope support before HM2 implantation. The 90-day mortality rate was not significantly higher in the early era (24% vs. 15%, P=0.43), but the composite endpoint was significantly higher (76% vs. 42%, P=0.01). The CUSUM analysis found a threshold of 23 operations after which the composite endpoint was optimized. Conclusion: Patients undergoing HM2 implantation in a low-volume center have improving outcomes with number of cases and optimized results after a threshold of 23 cases. Significant changes in patient selection, surgical techniques, and patient management might lead to improved outcomes after LVAD implantation.

许可

CC BY 4.0

引用

学术使用请引用 DOI 10.6084/m9.figshare.21557075.v1（source: https://scielo.figshare.com/articles/dataset/Learning_Curve_in_Left_Ventricular_Assist_Device_Implantation_Low_Volumes_Do_Not_Equate_Bad_Outcomes/21557075）。