python - 使用SimpleITK保存DICOM文件时如何保留UID？

我正在尝试使用SimpleITK读取一个DICOM文件并将其保存在其他位置。我注意到Series Instance UID无论我是否明确设置它都会发生变化。

如何保留原始UID？

from pathlib import Path
import SimpleITK as sitk

dicom_path = '......'
p = Path(dicom_path)

reader = sitk.ImageFileReader()
reader.SetFileName(str(p))
reader.LoadPrivateTagsOn()

image = reader.Execute()
print('Series Instance UID', image.GetMetaData('0020|000e'))
print('SOP Instance UID', image.GetMetaData('0008|0018'))
image.SetMetaData('0020|000e', image.GetMetaData('0020|000e'))

writer = sitk.ImageFileWriter()
writer.SetFileName(out_folder+case+p.name)
writer.SetUseCompression(False)
writer.Execute(image)

reader = sitk.ImageFileReader()
reader.SetFileName(out_folder+case+p.name)
reader.LoadPrivateTagsOn()

image = reader.Execute()
print('Series Instance UID', image.GetMetaData('0020|000e'))
print('SOP Instance UID', image.GetMetaData('0008|0018'))

为系列UID提供两个不同的字符串。SOP UID保持不变：

Series Instance UID 1.3.12.2.1107.5.1.4.74141.30000017013107011409700014483
SOP Instance UID 1.3.12.2.1107.5.1.4.74141.30000017013107011409700014570

Series Instance UID 1.2.826.0.1.3680043.2.1125.1.65790274925978549485969544082687134
SOP Instance UID 1.3.12.2.1107.5.1.4.74141.30000017013107011409700014570