pydicom读取dicom文件报错

之前采用pydicom读取dicom文件一切都很正常，不过最近读取一批数据的时候，会报错

读取代码

file = pydicom.read_file(filepath)
data = file.pixel_array

问题就出在pixel_array这个属性上，报错如下

OSError                                   Traceback (most recent call last)
c:\python35\lib\site-packages\pydicom\pixel_data_handlers\pillow_handler.py in get_pixeldata(dicom_dataset)
                     fio = io.BytesIO(pixel_data)
-->                  decompressed_image = Image.open(fio)
                 except IOError as e:

c:\python35\lib\site-packages\PIL\Image.py in open(fp, mode)
        raise IOError("cannot identify image file %r"
->                    % (filename if filename else fp))

OSError: cannot identify image file <_io.BytesIO object at 0x000002418FC85CA8>

During handling of the above exception, another exception occurred:

NotImplementedError                       Traceback (most recent call last)
<ipython-input--c00f3f09682d> in <module>()
---->  file.pixel_array

c:\python35\lib\site-packages\pydicom\dataset.py in pixel_array(self)
                 The Pixel Data (7FE0,) as a NumPy ndarray.
             """
-->          self.convert_pixel_data()
             return self._pixel_array

c:\python35\lib\site-packages\pydicom\dataset.py in convert_pixel_data(self)
             )

-->          raise last_exception

         def decompress(self):

c:\python35\lib\site-packages\pydicom\dataset.py in convert_pixel_data(self)
                 try:
                     # Use the handler to get a 1D numpy array of the pixel data
-->                  arr = handler.get_pixeldata(self)
                     self._pixel_array = reshape_pixel_array(self, arr)

c:\python35\lib\site-packages\pydicom\pixel_data_handlers\pillow_handler.py in get_pixeldata(dicom_dataset)
                     decompressed_image = Image.open(fio)
                 except IOError as e:
-->                  raise NotImplementedError(e.strerror)
                 UncompressedPixelData.extend(decompressed_image.tobytes())
         except Exception:

NotImplementedError: None

看到一篇博客https://blog.csdn.net/inter_peng/article/details/74370306与我的问题类似，都出在dicom文件格式上面，这种压缩格式用pydicom读取不出来，采用SimpleITK可以解决

file = sitk.ReadImage(filepath)
data = sitk.GetArrayFromImage(file)