Here&#x27;s a normal brain MRI, compared to photographed slices of a brain:<p><a href="https:&#x2F;&#x2F;www.claripacs.com&#x2F;a.php?a=vw" rel="nofollow">https:&#x2F;&#x2F;www.claripacs.com&#x2F;a.php?a=vw</a>
(Click and drag to scroll.  &quot;Share &gt; Download&quot; to download the full DICOM data)<p>This site has thousands of anonymized MRI and CT images of normal and abnormal scans, with clinical history in many cases.  For example, here are annotated scans of normal anatomy:<p><a href="https:&#x2F;&#x2F;www.claripacs.com&#x2F;folder&#x2F;Anatomy&amp;view_type=-1" rel="nofollow">https:&#x2F;&#x2F;www.claripacs.com&#x2F;folder&#x2F;Anatomy&amp;view_type=-1</a><p>One challenge with writing web DICOM viewers is the lack of full 16 bit image support in browsers.  This requires writing custom code to properly handle window &#x2F; level on 16-bit medical images.<p>Disclosure: I&#x27;m a co-founder of Claripacs.