Digital subtraction angiography is the standard method for detecting unruptured intracranial aneurysms, but it requires administration of radioactive tracers. Using 7 T MRI without contrast enhancement, Wrede et al. assessed patients with previously detected cerebral aneurysms. All features of the unruptured aneurysms were clearly and reliably measured with MRI. Although the results are not sufficient to obviate digital subtraction angiography, the potential of magnetic resonance angiography is clear.