Myths and maths in MR safety 2
In MRI we have been using the wrong terminology for magnetic fields for decades. Does this matter? Find out here. … More Myths and maths in MR safety 2
In MRI we have been using the wrong terminology for magnetic fields for decades. Does this matter? Find out here. … More Myths and maths in MR safety 2
MR signal, contrast and contrast-to-noise (CNR) calculaotr app. #MRI #MR physics #MReducation … More Signal, contrast & CNR calculator SE app
In an earlier blog post I raised the issue of the need for professional and academic prerequisites for certification as a MR Safety Expert. Now the Australasian College of Physical Scientists and Engineers in Medicine (ACPSEM), the professional body responsible for the training, scope of practice, professional conduct, qualifications, and continuing education of medical physicists … More ACPSEM MR Safety Expert Certification
MR signal and contrast calculator (SE) The MR signal and contrast calculator or app lets you choose two tissue T1 and T2 whilst manipulating the scanner parameters: TR and TE to show the signal, contrast and relative contrast to noise ratio (CNR). Use the calculator to explore the weightings below. MR gradient echo signal and … More MR signal and contrast calculators
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