Cancer Imaging Phenomics Toolkit (CaPTk)  1.6.2.Alpha
Supported Images

Currently, CaPTk supports visualization of MR, CT, PET, X-Ray and Full-field Digital Mammography (FFDM) images in both NIfTI (i.e., .nii, .nii.gz) and DICOM (i.e., .dcm) formats.

For MRI, the following modalities are currently supported (the image modality box equivalent is shown in parenthesis):

  1. Native T1-weighted (T1)
  2. Post-contrast T1-weighted (T1-Gd, also known as T1c, and T1-CE)
  3. T2-weighted (T2)
  4. T2-weighted Fluid Attenuated Inversion Recovery (T2-FLAIR)
  5. Dynamic susceptibility contrast-enhanced (DSC or PERFUSION)
  6. Diffusion Tensor Imaging (DTI) *
  7. Diffusion Weighted Imaging (DWI) *
  8. Recurrence Maps (REC)

* These modalities are currently visualized only within the "Confetti" application.

In addition, CaPTk offers the ability to extract and visualize commonly used measurements from DTI [1] and DSC-MRI, while accounting for leakage correction [2]. The exact measurements supported are:

  • DTI-FA (Fractional Anisotropy)
  • DTI-AX (Axial Diffusivity)
  • DTI-RAD (Radial Diffusivity)
  • DTI-TR (Trace)
  • DSC-ap-rCBV (automatically-extracted proxy to relative Cerebral Blood Volume)
  • DSC-PH (Peak Height)
  • DSC-PSR (Percentage Signal Recovery)


  1. J.M.Soares, P.Marques, V.Alves, N.Sousa. "A hitchhiker's guide to diffusion tensor imaging", Front Neurosci. 7:31, 2013. DOI: 10.3389/fnins.2013.00031
  2. E.S.Paulson, K.M.Schmainda, "Comparison of dynamic susceptibility-weighted contrast-enhanced MR methods: recommendations for measuring relative cerebral blood volume in brain tumors", Radiology. 249(2):601-613, 2008. DOI: 10.1148/radiol.2492071659