Las Vegas Analysis Failure

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1

Hi Pylinac Developer,

I tried to analyze the Las Vegas Dicom image using pylinac, which did not work out. It gave the error message as shown below (Fig. 1). I also checked the image.array(Fig.2) and image.metadata.pixel_array(Fig.3). It seemed like the image.array was normalized. Could the normalization cause the analysis failure? And how to solve the problem?

Thanks in advance.

Best,
Tingting

Fig.1

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Fig.2

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Fig.3

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L3.PNG808×201 8.14 KB

2

Hi Tingting,
The las vegas module is somewhat error prone due to the difficult nature of both finding the phantom and finding the rotation. Have you met all the conditions in the error message?

You can also try passing the center and/or angle through the analyze method. See the parameter documentation here: Planar Imaging module documentation — pylinac 2.4.0 documentation