ImSimQA™ Module

ImSimQA™ base module, is the underlying software to which optional modules can be added. This module includes a virtual phantom library, manipulation of DICOM-3 images and the creation of new DICOM images for testing clinical applications.

Virtual phantom library

The virtual phantom library contains a library of 15 3D anatomical and geometric virtual phantoms, all of which can be extensively edited and exported as DICOM-3 images, to create uniquely customisable phantoms which offer an infinite range of testing potential. All virtual phantoms can be transformed, deformed, re-orientated, structure density changed etc, to create DICOM-3 series in CT, simulated MR and PET which are then exported to the test application. DICOM headers can be edited. Parameters such as slice spacing and FOV can be modified in the exported DICOM-3 series.

Selection of ImSimQA anatomical and geometric virtual phantoms:

cyl phantom

3d margins phantom

pelvis phantom

Virtual phantom 1 small

mlc phantom

Thorax virtual phantom4

Manipulation of DICOM-3 images

DICOM-3 images of any modality can be imported, edited and exported as new DICOM series. Supported modalities include CT, MR, PET, MVCT and cone beam CT. RT Structure Sets can be imported, and edited prior to export. Noise can be added to images.

DICOM images can be globally translated, rotated, and re-scaled under controlled conditions to assist with systematic validation of clinical systems. More extensive deformations can be applied using the ImSimQAdform module.

Testing Image Registration Algorithms without the Scanner!

ImSimQA is used to test rigid and deformable image registration algorithms found in today’s image fusion packages, IGRT treatment machines, auto contouring and dose mapping in treatment planning applications.

For image registration testing, varying setups of an initial DICOM image series can be created, without having to use valuable scanner time to create multiple scans for testing. Initial high resolution images e.g. 1mm slice spacing, can be resampled to 2,3,5mm etc and exported to test the effect of slice resolution. RT Structure outlines can be edited, and structure densities can be allocated a new density prior to export – to test the effect of density differences on image registration accuracy.

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