Some recent activity in stackoverflow was brought to my attention.  Specifically, several questions were raised with reading files into R using readDICOMFile() in the oro.dicom package. The questions did highlight some inadequacies in the code, an... [Read more...]

The R package dcemriS4 provides routines for the quantitative analysis of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), along with quantification of diffusion-weighted MRI (DWI) and quantitative T2 maps from CPMG sequences.  The ... [Read more...]

The R package oro.dicom contains data input/output functions for medical imaging data that conform to the Digital Imaging and Communications in Medicine (DICOM) standard, part of the Rigorous Analytics bundle.The latest version of oro.dicom (0.4.0) con... [Read more...]

Okay, so it's been quite a while since I provided an entry associated with oro.nifti.  That doesn't mean things haven't moved on... they have.  Let's just say I've been occupied.  One of the biggest changes to oro.nifti recently has been... [Read more...]

The R package dcemriS4 provides routines for the quantitative analysis of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), along with quantification of diffusion-weighted MRI (ADC = apparent diffusion coefficient) and quantitative T2 map... [Read more...]

Volume 44 of the Journal of Statistical Software was published in October 2011.  The special volume on “Magnetic Resonance Imaging in R” features articles and packages related to a variety of imaging modalities:functional MRIdiffusion-weighted MRIdynamic contrast-enhanced MRIdynamic susceptibility-contrast MRI structural MRIThe papers describe the methodology, software implementation and provide comprehensive examples ... [Read more...]

The  package oro.nifti contains functions for the input/output and visualization of medical imaging data that follow either the ANALYZE, NIfTI or AFNI formats.  This package is part of the Rigorous Analytics bundle.Lightbox display of fu... [Read more...]

The R package oro.dicom contains data input/output functions for medical imaging data that conform to the Digital Imaging and Communications in Medicine (DICOM) standard, part of the Rigorous Analytics bundle.The latest version of oro.dicom (0.3.3) con... [Read more...]

I haven't devoted any time/effort/code to the extraction and parameter estimation of arterial input functions (AIFs) for DCE-MRI in either the vignette or the submission to JSS.  Frankly, I wanted to communicate the main features of the R package dcemriS4 and data-driven AIFs just haven't made the list... ... [Read more...]

The R package oro.nifti contains functions for the input/output and visualization of medical imaging data that follow either the ANALYZE, NIfTI or AFNI formats.  This package is part of the Rigorous Analytics bundle.Orthographic display of stru... [Read more...]

The R package dcemriS4 is a collection of functions, with examples and documentation, that allows one to perform voxel-wise quantitative analysis of dynamic contrast-enhanced MRI (DCE-MRI) or diffusion-weighted imaging (DWI) data.  The primary... [Read more...]

Magnetic Resonance Imaging in R The deadline for submission to the Special Issue of the Journal of Statistical Software(JSS - http://www.jstatsoft.org) has been extended to November 14, 2010.All MRI modalities are welcome, for example, structural ... [Read more...]

The R package dcemriS4 is a collection of functions, with examples and documentation, that allows one to perform voxel-wise quantitative analysis of dynamic contrast-enhanced MRI (DCE-MRI) or diffusion-weighted imaging (DWI) data.  The primary app... [Read more...]

The R package oro.nifti contains functions for the input/output and visualization of medical imaging data that follow either the ANALYZE or NIfTI formats.  This package is part of the Rigorous Analytics bundle.The latest version of oro.nifti (0.... [Read more...]

The R package oro.dicom contains functions for the input/output of medical imaging data that conform to the Digital Imaging and Communications in Medicine (DICOM) standard.  This package is part of the Rigorous Analytics bundle. The latest version... [Read more...]

The latest version of oro.nifti (0.2.0) has been released on CRAN.  New features include:Reduced overall size of the package by an additional 50% This is a 75% reduction in total from version 0.1.4Four-dimensional acquisitions are now re-orient... [Read more...]

We hereby call for the submission of original papers for a Special Issue of the Journal of Statistical Software (JSS - http://www.jstatsoft.org)Magnetic Resonance Imaging in R planned for Summer 2011. The deadline for submission is October 31, 2... [Read more...]

The latest version of oro.nifti (0.1.5) has been released on CRAN.  New features include:Reduced overall size of the package by 50%Minor improvements; for example, the XML package is no longer required as indicated from the DESCRIPTION file ... [Read more...]

The latest version of oro.dicom (0.2.6) has been released on CRAN. New features/improvements include:33% increase in the speed of DICOM file handlingAutomatic re-orientation/re-slicing of 3D and 4D volumes when converting from DICOM to NIfTI formatWo... [Read more...]

I was recently introduced to the concept of the h-index and was compelled to find out my own h-index via Scopus.  Numbers don't matter, but discussion with my colleagues turned to the issue of author position.  We quickly decided that there are three important "positions" in the list of authors ... [Read more...]