Estimates of relaxation times compared favorably to those obtained from non-automated curve fitting. Computing times varied between 2 and 113 seconds. MRmap was successfully tested on three different computer platforms with image data from three different MR system manufacturers and five different sorts of pulse sequences: multi-image inversion recovery T1 Look-Locker/TOMROP T1 modified Look-Locker (MOLLI) T1 single-echo T2/T2* and multi-echo T2/T2*. Additional features include a manual registration tool for source images with motion artifacts and a tabular DICOM viewer to examine pulse sequence parameters. ResultsĪfter defining requirements for a universal MR mapping tool, a software program named MRmap was created using a high-level graphics language. Such a software program would allow researchers to test and compare new imaging strategies and thus would significantly facilitate research in the area of quantitative tissue characterization. ![]() While there are basic software tools for specific pulse sequences, until now there is no universal software program available to automate pixel-wise mapping of relaxation times from various types of images or MR systems. In magnetic resonance (MR) imaging, T1, T2 and T2* relaxation times represent characteristic tissue properties that can be quantified with the help of specific imaging strategies.
0 Comments
Leave a Reply. |