软件版本：4.8.1 r26813
问题描述： 在3DSlicer中利用DWIConvert 模块可将DTI扫描序列中的DWI图像转换为Nrrd格式时，出错。
错误提示：
Diffusion-weighted DICOM Import (DWIConvert) standard error:
Exception thrown while reading DICOM volume
itk::ExceptionObject (0x105eb8bf8)
Location: “unknown”
File: /Users/kitware/Dashboards/Package/Slicer-481-package/ITKv4/Modules/IO/ImageBase/include/itkImageSeriesReader.hxx
Line: 370
Description: itk::ERROR: ImageSeriesReader(0x105ed4580): Size mismatch! The size of /Users/liao/Desktop/dicom_7898546-YLZ/MR.1.2.840.113619.2.353.2807.8093214.15775.1640134827.507.dcm is [512, 512, 1] and does not match the required size [256, 256, 1] from file /Users/liao/Desktop/dicom_7898546-YLZ/MR.1.2.840.113619.2.311.73969062461215353837560295284725691254.dcm