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2.12.2015 - Our new paper on simulation of Time-of-Flight and Phase Contrast angiography is now available on-line. We encourage you to read it.
30.11.2015 - In the Downloads section we've added a link to a Xcode project where we implement a vascular tree growth simulation algorithm. Have a try :-). 6.10.2015 - Two new models of the carotid artery bifurcation have been added to the downloads database. 15.08.2015 - We are starting a new project on magnetic resonance simulation. This time we will work on kidney perfusion modeling. More information soon. |
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Template image database
With the use of the designed simulator a series of 3D images was created for various vessel models and ToF sequence parameters.
These images, according to the project objectives, are intended for validation of methods for vessel segmentation in MRA images.
Below, samples of synthesized images (in NIFTI format) and their corresponding geometrical models (as STL files) are made available for free download.
Important! The database is systematically expanded on new images.
Important! The database is systematically expanded on new images.
In case of using our images in your research or studies, please cite:
Artur Klepaczko, Piotr Szczypiński, Grzegorz Dwojakowski, Michał Strzelecki, Andrzej Materka. Computer Simulation of Magnetic Resonance Angiography Imaging: Model Description and Validation. PLoS ONE 9(4): e93689. doi:10.1371/journal.pone.0093689.
| Model |
Sequence parameters TR/TE/FA [ms/ms/°] |
Scanning options |
|
A vessel with 8 mm diameter with 50% stenosis. Flow rate - 4.6 ml/s. |
TR/TE/FA = 27/4.6/15 | MOTSA, ramped FA, flow compensation |
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A vessel with 8 mm diameter with fusiform aneursym. Flow rate - 2.5 ml/s. |
TR/TE/FA = 27/4.7/15 | MOTSA, flow compensation |
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A model of middle cerebral artery (MCA) with bifurcation. Flow rate - 2.5 ml/s. |
TR/TE/FA = 27/4.6/15 | Flow compensation, ramped FA. |
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The MCA model with saccular aneurysm of maximal dome diameter 3.7 mm. Flow rate - 2.5 ml/s. |
TR/TE/FA = 27/4.6/15 | Flow compensation, ramped FA. |
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Common carotid bifurcation model with stenosis in internal carotid artery (ICA). Total flow rate - 6 ml/s. |
TR/TE/FA = 37/6.2/15 | Flow compensation, ramped FA. |
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A synthetic vascular tree with 7 branches: diameter of the feeding artery - 4.15 mm, 4 outlet branches of diameters from 2.4 to 2.8 mm. Total flow rate - 6.5 ml/s. |
TR/TE/FA = 27/4.6/15 | Flow compensation, ramped FA. |
|
A synthetic vascular tree with 10 branches: diameter of the feeding artery - 6.2 mm, 10 outlet branches of diameters from 2.4 to 3.1 mm. Total flow rate - 1.5 ml/s. |
TR/TE/FA = 30/4.5/10 | Flow compensation, ramped FA. |
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A synthetic model of the common carotid bifurcation based on real-data measurements |
TR/TE/FA = 37/4.6/10 | Flow compensation, ramped FA, MOTSA. |
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A synthetic model of the common carotid bifurcation with moderate stenosis in the internal carotid artery based on real-data measurements |
TR/TE/FA = 37/4.6/10 | Flow compensation, ramped FA, MOTSA. |
Software
Downolad the Xcode project with the implementation of the tree growth simulation algorithm.