Edge Rewrite
// HTMLRewriter · presentation

This page was redesigned at the edge.

Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.

// request.cf · coarse context

A page that knows where it met you.

Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.

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Talk:Contrast resolution

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I'm not sure it's appropriate to state with such authority that the equation presented here is correct "by definition" for MRI. There are several definitions of CNR used in MRI (another being CNR=SNRa-SNRb). See for example http://www.phys.cwru.edu/courses/p431/notes-2003/node123.html  Preceding unsigned comment added by 129.137.218.82 (talkcontribs) 14 November 2008 (UTC)