Note: This copy is for your personal non-commercial use only. To order presentation-ready copies for distribution to your colleagues or clients, contact us at www.rsna.org/rsnarights. 99 EDUCATION EXHIBIT Aliye Ozsoyoglu Bricker, MD • Bindu Avutu, BS • Tan-Lucien H. Mohammed, MD • Eric E.Williamson, MD • Imran S. Syed, MD Paul R. Julsrud, MD • Paul Schoenhagen, MD • Jacobo Kirsch, MD Aneurysms of the Valsalva sinus (aortic sinus) can be congenital or ac- quired and are rare. They are more common among men than women and among Asians than other ethnic groups. Nonruptured aneurysms may be asymptomatic and incidentally discovered, or they may be symptomatic and manifest acutely with mass effect on adjacent car- diac structures. Ruptured Valsalva sinus aneurysms result in an aorto- cardiac shunt and may manifest as insidiously progressive congestive heart failure, severe acute chest pain with dyspnea, or, in extreme cases, cardiac arrest. Although both ruptured and nonruptured Valsalva sinus aneurysms may have potentially fatal complications, after treat- ment the prognosis is excellent. Thus, prompt and accurate diagnosis is critical. Most Valsalva sinus aneurysms are diagnosed on the basis of echocardiography, with or without angiography. However, both elec- trocardiographically gated computed tomography and magnetic reso- nance (MR) imaging can provide excellent anatomic depiction, and MR imaging can provide valuable functional information. © RSNA, 2010 • radiographics.rsna.org Valsalva Sinus Aneu- rysms: Findings at CT and MR Imaging 1 Abbreviations: ECG = electrocardiography, MIP = maximum intensity projection, SSFP = steady-state free precession RadioGraphics 2010; 30:99–110 • Published online 10.1148/rg.301095719 • Content Codes: 1 From the Cleveland Clinic Foundation, Department of Radiology, 9500 Euclid Ave, Cleveland, OH, 44195. Received March 10, 2009; revision requested May 5 and received May 14; accepted May 20. P.R.J. is a research consultant for Medtronic; E.E.W. is a consultant for GE Healthcare and Siemens, is a member of an expert advisory committee for Siemens and Bayer, and receives research support from Bayer; all other authors have no financial relationships to disclose. Address correspondence to A.O.B. (e-mail: brickea2@ccf.org). © RSNA, 2010