dicomreadVolume 'Directory was not readable' error

I am trying to load in a zip folder with dcm files into MATLAB. However, when I use the dicomreadVolume function I am getting an error. I tried unzipping it directly in my file explorer. How can I fix this error?

ctScan = dicomreadVolume('Spine_CT.dcm');

Error using dicomreadVolume>getFilenames

Directory was not readable.

Error in dicomreadVolume (line 11)

filenames = getFilenames(inputSource);

Error in untitled (line 1)

ctScan = dicomreadVolume('Spine_CT.dcm');

Answer 1

[Walter Roberson]

You would get that error if MATLAB cannot find the given file on the MATLAB path.

Typically, that means that you specified the file name as 'Spine_CT.dcm' but the file is not in the current directory. Typically unzipped files are put into a newly-created directory.

Answer 2

[Gayatri]

Hi Hayley,

Here are steps to load the files correctly:

• Ensure that the zip file is properly unzipped into a directory that MATLAB can access. You can do this directly within MATLAB to avoid any file path issues.
• Once the files are unzipped, provide the directory path to "dicomreadVolume".

% Specify the path to the zip file
zipFilePath = 'path/to/your/Spine_CT.zip';

% Specify the output directory for unzipping
outputDir = 'path/to/unzipped/files';

% Unzip the files
unzip(zipFilePath, outputDir);

% Read the DICOM volume from the unzipped directory
ctScan = dicomreadVolume(outputDir);

Please refer the below documentation for unzip function: https://www.mathworks.com/help/matlab/ref/unzip.html

I hope it helps!