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Volume calculatorRadiology

First choose the tissues you are interested in. Alternatively T1 and T2 values can be entered as “free”.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 relative grey scale for the two … More MR signal and contrast calculator (SE)

Bladder volume calculatorradiology

Does anyone know where I can get a 5 sided allen key for some decathlon security skewers I have? I seem to haev "misplaced" the tool that came with them, and having to patch a tube with the wheel on the bike on saturday was not fun! Based in london if that's any help…

The SAR and B1+rms calculator has been updated to version 2.2. This uses a more realistic model (assumes the body within the RF coil is a uniform cylinder, rather than a sphere). It also calculates the average (whole body) SAR whereas before it calculated the peak SAR- so it doesn’t so easily jump out of the Normal … More SAR and B1+rms calculator update

Prostate volume calculatorradiology

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

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

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