Difference: MedIMSoftware (r8 vs. r7)
Free Software from the Medical Imaging Group
Stradwin Stradview is an experimental, cross-platform a user-friendly medical tool primarily for freehand 3D ultrasound data acquisition, visualisation and elastography. package which However, Stradwin can also be used with 3D run under Windows or Linux, medical data of any sort: its segmentation and surface extraction facilities are particularly powerful. implements many of the algorithms described in our research pages. It can load most types of DICOM data or image files sequences, and has unique facilities to measure bone produce very high quality surface models and surface and volume-based visualisations which can also be turned into movies using scripts. It can also be used for cortical thickness bone mapping from DICOM CT data. Freehand three-dimensional ultrasound imaging is performed by attaching a position Stradview was originally developed from Stradwin, but without any of sensor to the live ultrasound probe and using a computer acquisition features, which makes it much more appropriate for those who only need to record visualise the trajectory of the probe as the clinician perfoms the scan. Both Stradx and Stradwin are designed to analyse existing medical data. work with a wide variety of position sensors and ultrasound machines.
- Runs under Windows and Linux.
- Understands many different data formats, including DICOM, Mindways QCT, ITK, Analyze HDR, NRRD and many image formats.
- Can be used to take image sequences without any 3D locations and create 3D data from these.
- Accurate data re-slicing algorithms which can handle non-parallel image sequences.
- Sub-pixel accurate manual and automatic extraction of high quality surfaces from 3D data.
- Cortical Bone Measurement for accurate assesment of cortical thickness and other properties.
- High quality surface visualisations, including correct surface transparency for multiple surfaces and non-realistic renderings.
- High quality volume visualisations, including radiant shadowing for much more realistic effects, and cubic interpolation for high accuracy.
- The ability to automatically create image sequences for visualisation movies.
- Complex cropping of re-slices and volume renderings based on arbitrary surfaces.
- Measurements using data landmarks and by drawing on 3D surfaces.
Stradwin Features
Stradwin is an older system which offers acquisition facilities for recording 3D ultrasound data, but not the advanced visualisation features of Stradview. We still offer this online but are no longer actively developing it and, as a result, support is limited.
- Runs under Linux using v4l2 video, or under Windows using DirectShow.
- Works with Polhemus Fastrak, Polhemus Patriot, Northern Digital Polaris or Ascension MiniBird, LaserBird or Flock of Birds position sensor.
- Works with PAL/NTSC ultrasound images, radio frequency ultrasound images, and several specific ultrasound machines.
- Incorporates fast, accurate, calibration facility that is even easier to use than the Stradx calibration tool.
- Provides real-time flat reslice tool that can be oriented interactively at any angle. Also includes a tool to create orthogonal reslice views.
- Has an easy-to-use manual segmentation facility and an accurate volume measurement tool.
- Offers a facility for defining landmark points in the data and using them to measure distances and angles.
- Incorporates a tool for calibrating a pointer which can be used to locate external fiducial landmarks in 3D space.
- Has a tool for aligning the internal representation with an external (isocentre) coordinate system. Reslice images can then be produced parallel to one of the axes of this coordinate system.
- Has a novel "hands free" recording mode.
- Works with Doppler data.
- Uses an open file format and includes comprehensive documentation.
Stradx Features
Stradx is an older system which we still offer online but no longer actively develop or support.
- Runs under Linux using v4l2 video, or under SGI Irix.
- Works with Polhemus Fastrak, Polhemus Patriot, Northern Digital Polaris or Ascension MiniBird, LaserBird or Flock of Birds position sensor.
- Works with PAL/NTSC, digital or radio frequency ultrasound image input.
- Incorporates fast, accurate spatial and temporal calibration facilities.
- Offers registration tools for probe pressure correction, aligning sweeps and alignment to other modalities.
- Provides various types of real-time flat and curved reslice, panorama and slab-rendering tools.
- Includes segmentation and volume measurement tools that work on multiple sweeps of data.
- Uses an open file format and includes comprehensive documentation.