Gradient echo (GE, GRE, FLASH, SPGR, T1-FFE, FE) is one of the hardest elements of MRI to understand. Image signal and contrast in spoiled gradient echo depends upon three user-selected parameters: Flip angle <90º TR – repetition time, typically > 10 ms TE – echo time, typically > 2 ms Signal and contrast also depend … More Gradient echo signal and contrast
First choose tissue T1 and T2 values. Then select your scanning TR, TE and flip angle. You can also set a field inhomogeneity factor. The calculator uses an estimated value of T2* based upon this and the tissue T2. The graph shows the signal intensity (max = 1) for both tissues, the contrast and the … More Gradient echo signal and contrast calculator
Engineering and Physical Sciences in Medicine, Adelaide, 28 October 2018 I was delighted to convene this pre- conference workshop at the Royal Adelaide Hospital on behalf of the Australasian College of Physical Scientists and Engineers in Medicine. A full capacity audience heard presentations from leading local MR professionals- all with the focus of encouraging collaboration … More MR Physics Workshop
First choose tissue T1 and T2 values. Then select your scanning TR and TE (for spin echo) The graph shows the signal intensity (max = 1) for both tissues, the contrast and the relative contrast to noise ratio (CNR). The calculator currently works on computers and Android devices only.
MR safety matters The subject of MRI safety continues to grow apace, with technical advances of the equipment and a proliferation of passive and active implants appearing on the market. Eden Learning’s MR Safety First course has grown to meet the needs of healthcare professionals working in MRI. This comprehensive course spans two days covering … More MR Safety First: 2 day course in London