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: For any given tissue T1 and scanner TR there is a flip angle, the Ernst angle, that gives the maximum signal for that tissue. … 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 relative contrast … More Gradient echo signal and contrast calculator
This 7 hour course builds upon the Siemens MR Essential Safety Courses and includes the latest updates, exercises and workshops on B1+rms, pacemaker function and scanning, MR safety policy writing, suite layout for safety plus a review of the MR Essential Safety material. The course is designed for delegates who have previously attended MR Essential Safety … More MR Essential Safety: Next Steps
Use the SNR and resolution calculator to investigate the effect of various parameter changes in MRI. The calculator reports the relative (to default parameters) SNR, pixel size and scan time. Reloading the page will restore the default values. Note: this works best on a computer. It will also work on Android and IOS mobile devices. … More SNR and resolution calculator
Since posting this a new official national MRSE course and certification scheme has been developed in Australia and New Zealand. Read about it here. On 12th May 2018, the American Board of MR Safety (ABMRS) exam for certification as MR Safety Officer (MRSO), MR Medical Director (MRMD) or MR Safety Expert (MRSE) is being offered … More Opinion. The MRSO/MRSE exam: what does it mean?