开窗式上颌窦同种异体骨增量术后术前慢性鼻窦炎缓解的临床与影像学证据：回顾性观察研究

数据集获取

源站：https://clinicaltrials.gov/study/NCT06773494

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: Chronic Sinusitis, Open Sinus Elevation. Introduction Implant placement in the posterior maxilla may be a dilemma. Factors complicating the treatment may be anatomical landmarks, type of bone, residual bone height, limited accessibility, maxillary sinus pneumatization as well as sinus pathologies such as chronic or acute sinusitis (1,2). When vertical bone in the posterior maxilla is compromised due to maxillary sinus pneumatization several protocols were advocated to overcome this occurrence, such as the placement of short implants (3), 2nd premolar occlusion (4), or maxillary sinus elevation (5). Sinus elevation was introduced in 1980 when Boyne and James presented the lateral window approach as a modification of the Caldwell- Luc technique; access to lift the sinus floor is performed by a window through the lateral wall of the sinus (6). This technique was proven to be effective and successful for sinus elevation, even up to 12 mm in cases of severely atrophic ridge (7). It was later divided into three techniques according to the lateral wall preparation: hinge, elevated, and complete (8). The high position of the Maxillary Sinus Ostium (MSO) led to the fact that drainage of the sinus is always against the gravitational force, an important factor that may lead to fluid precipitation inside the sinus and needs to be considered when dealing with maxillary sinusitis (9). The presence of pre-operative sinus pathologies, including chronic and acute sinusitis may complicate the treatment of open sinus elevation as they may affect the integrity of the Schneiderian membrane at the time of open sinus elevation (10). Not only so, but they may also increase the risk of post-operative sinusitis (11). However, a research gap exists in this aspect since a systematic review published in 2021 negated that suggestion and mentioned that mucosal thickenings of the Schneiderian membrane and/ or chronic sinusitis are not likely to pause extra risk factors in terms of sinus augmentation (12). Patients and Methods Patient Sel

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。