Non-invasive cardiac imaging to unmask a very uncommon aetiology of an embolic stroke.

References 11–71 can be found in Supplementary data online. 1. Goldstein JA. Angiographic plaque complexity: the tip of the unstable plaque iceberg. J Am Coll Cardiol 2002;39:1464–7. 2. Moreno PR, Muller JE. Identification of high-risk atherosclerotic plaques: a survey of spectroscopic methods. Curr Opin Cardiol 2002;17:638–47. 3. Jaffer FA, Verjans JW. Molecular imaging of atherosclerosis: clinical state-of-the-art. Heart 2014;100:1469–77. 4. Dempsey RJ, Davis DG, Buice RG, Lodder RA. Biological and medical applications of near-infrared spectrometry. Appl Spectrosc OSA 1996;50:18A–34A. 5. Gributs CEW, Burns DH. In Vivo Near-Infrared Spectrometry. Handb Vib Spectrosc. Chichester, UK: John Wiley & Sons, Ltd; 2001. 6. Hall JW, Pollard A. Near-infrared spectrophotometry: a new dimension in clinical chemistry. Clin Chem 1992;38:1623–31. 7. Gardner CM, Tan H, Hull EL, Lisauskas JB, Sum ST, Meese TM et al. Detection of lipid core coronary plaques in autopsy specimens with a novel catheter-based nearinfrared spectroscopy system. JACC Cardiovasc Imaging 2008;1:638–48. 8. Sum ST, Madden SP, Hendricks MJ, Chartier SJ, Muller JE. Near-infrared spectroscopy for the detection of lipid core coronary plaques. Curr Cardiovasc Imaging Rep 2009;2:307–15. 9. Cassis LA, Lodder RA. Near-IR imaging of atheromas in living arterial tissue. Anal Chem 1993;65:1247–56. 10. Jaross W, Neumeister V, Lattke P, Schuh D. Determination of cholesterol in atherosclerotic plaques using near infrared diffuse reflection spectroscopy. Atherosclerosis 1999;147:327–37.