TypeError: can only concatenate list (not "MultiValue") to list

[mepster]

If anyone is using pydicom=1.0.2 instead of the older pydicom=0.9.9, you will get an exception during the preprocessing step:

TypeError: can only concatenate list (not "MultiValue") to list

The exception is raised at line 50 of preprocessing/step1.py. You can fix it by replacing the original version of line 50:

return np.array(image, dtype=np.int16), np.array([slices[0].SliceThickness] + slices[0].PixelSpacing, dtype=np.float32)

with this version:

return np.array(image, dtype=np.int16), np.array([slices[0].SliceThickness, slices[0].PixelSpacing[0], slices[0].PixelSpacing[1]], dtype=np.float32)

(The second version of line 50 works with either version of pydicom.)

[lfz]

thank you ~ 2018-03-13 12:05 GMT+08:00 Michael E. Palmer <notifications@github.com>:

…

If anyone is using pydicom=1.0.2 instead of the older pydicom=0.9.9, you will get an exception during the preprocessing step: TypeError: can only concatenate list (not "MultiValue") to list The exception is raised at line 50 of preprocessing/step1.py. You can fix it by replacing the original version of line 50: return np.array(image, dtype=np.int16), np.array([slices[0].SliceThickness] + slices[0].PixelSpacing, dtype=np.float32) with this version: return np.array(image, dtype=np.int16), np.array([slices[0].SliceThickness, slices[0].PixelSpacing[0], slices[0].PixelSpacing[1]], dtype=np.float32) (The second version of line 50 works with either version of pydicom.) — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#72>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AIigQ1TEbHVlXhsySPU3nSEA_V2CQynHks5td0WMgaJpZM4SoDSa> .

-- 廖方舟 清华大学医学院 Liao Fangzhou School of Medicine Tsinghua University Beijing 100084 China

[lihaossu]

thank you very much

[Jaaazz]

Hey mepster,

in which file can I replace the original version of line 50?
I can't find any file. Thanks you in advance

[jiaxu0017]

thank you!