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Magnetic resonance angiography source images in carotid cavernous fistulas
  1. J C Rucker1,
  2. V Biousse2,
  3. N J Newman3
  1. 1Departments of Neurology and Ophthalmology, Case Western Reserve School of Medicine, Cleveland, OH, USA
  2. 2Departments of Ophthalmology and Neurology, Emory University School of Medicine, Atlanta, GA, USA
  3. 3Departments of Ophthalmology, Neurology, and Neurological Surgery, Emory University School of Medicine, Atlanta, GA, USA
  1. Correspondence to: Dr Newman Neuro-ophthalmology Unit, Emory Eye Center. 1365-B Clifton Rd, NE Atlanta, GA 30322, USA; ophtnjnemory.edu

https://doi.org/10.1136/bjo.2003.026575

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    Several investigations, including magnetic resonance imaging (MRI), computed tomography (CT), and orbital ultrasound are used to non-invasively screen for carotid cavernous fistula (CCF), with variable results. Examination of magnetic resonance angiography (MRA) source images, in addition to the conventional MRA reconstructions, is now also recognised as a useful method of detecting CCF.1 The finding of a hyperintense signal in the cavernous sinus on MRA source imaging provides additional, and sometimes the only, neuroradiographic CCF evidence. We present this patient to familiarise the ophthalmologist with the typical CCF appearance on MRA source images.

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