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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Magn Reson Imaging Clin N Am. 2009 Feb;17(1):47–61. doi: 10.1016/j.mric.2008.12.002

Figure 5.

Figure 5

Traumatic brain injury is often occult to conventional imaging methods in CT or MRI. Here, we show a case of a motorcycle accident where conventional MR methods were unable to locate the many bleeds present. A, The gradient echo image shows some sign of a microbleed (arrow). B, SWI shows a number of venous confluences (particularly striking is the junction of the medullary veins with the septal vein) that have shearing injury. The smaller microbleeds are likely due to shearing of the venules (see also Figure 12). C, The post-contrast T1-weighted image shows no evidence of vascular damage.