PD Dr. med. Oliver Klass

PD Dr. med. Oliver Klass ist Facharzt für Radiologie und Herzchirurgie. Sein Spezialgebiet ist die nicht-invasive Diagnostik des Herzens, an deren Weiterentwicklung er in der Uniklinik Ulm (deutsches Referenzzentrum für Herzbildgebung) maßgeblich mitgearbeitet hat.
Sein kardiochirurgischer Schwerpunkt ist die Implantation von Herzschrittmachersystemen, Defibrillatoren und „Eventrecordern“


geboren in Essen

Studium der Musik, Musikhochschule Köln

Medizinstudium, Universität zu Köln

Wissenschaftlicher Mitarbeiter Abteilung Herzchirurgie, Universitätsklinikum Köln


Facharzt für Herzchirurgie

Oberarzt für Herzchirurgie, Universitätsklinik Ulm

wissenschaftlicher Mitarbeiter der Abteilung Radiologie, Universitätsklinik Ulm

Oberarzt für Radiologie, Universitätsklinik Ulm

Facharzt für Radiologie

Juli 2010
Einreichen des Habilitationsantrages im Fach Radiologie
„Computertomographie des Herzens“

Juli 2011
Habilitation, Erteilung der Venia legendi für das Fach Radiologie,
Universitätsklinikum Ulm.

Seit Oktober 2010
MediaPark-Klinik Köln


  • Deutsche Gesellschaft für Herz-, Thorax- und Gefäßchirurgie
  • Deutsche Röntgengesellschaft
  • European Society of Radiology (ESR)
  • European Society of Cardiac Radiology (ESCR)
  • Arbeitsgemienschaft für Herz- und Gefäßdiagnostik (Deutsche Röntgengesellschaft)


  • European Radiology


  1. Feuerlein, S, Stolz, J, Muche, R, Hetzel, M, Klass, O, Brambs, HJ, and Pauls, S,
    Cisterna chyli in patients with malignancy-Influence of cardiovascular disease on the prevalence of the cisterna.Eur J Radiol, 2010.
  2. Klass, O, Kleinhans, S, Walker, MJ, Olszewski, M, Feuerlein, S, Juchems, M, and Hoffmann, MH,
    Coronary plaque imaging with 256-slice multidetector computed tomography: interobserver variability of volumetric lesion parameters with semiautomatic plaque analysis software.Int J Cardiovasc Imaging, 2010. 26(6): p. 711-20.
  3. Klass, O, Walker, MJ, Olszewski, ME, Bahner, J, Feuerlein, S, Hoffmann, MH, and Lang, A,
    Quantification of aortic valve area at 256-slice computed tomography: Comparison with transesophageal echocardiography and cardiac catheterization in subjects with high-grade aortic valve stenosis prior to percutaneous valve replacement.Eur J Radiol, 2010.
  4. Oberhuber, A, Schwarz, A, Hoffmann, M, Klass, O, Schelzig, H, Orend, KH, and Muhling, B,
    [Influence of fixation mechanism on changes of the supra- and infrarenal segment of the aorta after endovascular treatment of infrarenal aortic aneurysm].Zentralbl Chir, 2010. 135(5): p. 433-7.
  5. Oberhuber, A, Schwarz, A, Hoffmann, MH, Klass, O, Orend, KH, and Muhling, B,
    Influence of different self-expanding stent-graft types on remodeling of the aortic neck after endovascular aneurysm repair.J Endovasc Ther, 2010. 17(6): p. 677-84.
  6. Pauls, S, Schmidt, SA, Juchems, MS, Klass, O, Luster, M, Reske, SN, Brambs, HJ, and Feuerlein, S,
    Diffusion-weighted MR imaging in comparison to integrated [(18)F]-FDG PET/CT for N-staging in patients with lung cancer.Eur J Radiol, 2010.
  7. Feuerlein, S, Klass, O, Pasquarelli, A, Brambs, HJ, Wunderlich, A, Duerk, JL, Aschoff, AJ, and Hoffmann, MH,
    Coronary MR imaging: navigator echo biofeedback increases navigator efficiency–initial experience.Acad Radiol, 2009. 16(3): p. 374-9.
  8. Fischer, UM, Klass, O, Cox, CS, Stock, U, Antonyan, A, Brixius, K, Fischer, JH, Mehlhorn, U, and Bloch, W,
    Regulation of endothelial nitric oxide synthase (eNOS) in myocardium subjected to cardioplegic arrest.Thorac Cardiovasc Surg, 2009. 57(7): p. 379-85.
  9. Jeltsch, M, Klass, O, Klein, S, Feuerlein, S, Aschoff, AJ, Brambs, HJ, and Hoffmann, MH,
    Aortic wall thickness assessed by multidetector computed tomography as a predictor of coronary atherosclerosis.Int J Cardiovasc Imaging, 2009. 25(2): p. 209-17.
  10. Klass, O, Jeltsch, M, Feuerlein, S, Brunner, H, Nagel, HD, Walker, MJ, Brambs, HJ, and Hoffmann, MH,
    Prospectively gated axial CT coronary angiography: preliminary experiences with a novel low-dose technique.Eur Radiol, 2009. 19(4): p. 829-36.
  11. Klass, O, Mutlu, S, Hohl, K, Feuerlein, S, Jeltsch, M, Brambs, HJ, and Hoffmann, MH,
    Multidetector computed tomography coronary angiography: sublingual nitroglycerine improves image quality significantly because of peripheral coronary vasodilatation.J Comput Assist Tomogr, 2009. 33(2): p. 199-203.
  12. Klass, O, Walker, M, Siebach, A, Stuber, T, Feuerlein, S, Juchems, M, and Hoffmann, MH,
    Prospectively gated axial CT coronary angiography: comparison of image quality and effective radiation dose between 64- and 256-slice CT.Eur Radiol, 2009. 20(5): p. 1124-31.
  13. Stuber, T, Hoffmann, MH, Stuber, G, Klass, O, Feuerlein, S, and Aschoff, AJ,
    Pitfalls in detection of acute gastrointestinal bleeding with multi-detector row helical CT.Abdom Imaging, 2009. 34(4): p. 476-82.
  14. Feuerlein, S, Roessl, E, Proksa, R, Martens, G, Klass, O, Jeltsch, M, Rasche, V, Brambs, HJ, Hoffmann, MH, and Schlomka, JP,
    Multienergy photon-counting K-edge imaging: potential for improved luminal depiction in vascular imaging.Radiology, 2008. 249(3): p. 1010-6.
  15. Jeltsch, M, Ranft, S, Klass, O, Aschoff, AJ, and Hoffmann, MH,
    Evaluation of accordance of magnetic resonance volumetric and flow measurements in determining ventricular stroke volume in cardiac patients.Acta Radiol, 2008. 49(5): p. 530-9.
  16. Klass, O, Fischer, UM, Antonyan, A, Bosse, M, Fischer, JH, Bloch, W, and Mehlhorn, U,
    Pneumocyte apoptosis induction during cardiopulmonary bypass: effective prevention by radical scavenging using N-acetylcysteine.J Invest Surg, 2007. 20(6): p. 349-56.
  17. Klass, O, Hoffmann, MH, Ludwig, B, Leithauser, F, and Hannekum, A,
    Images in cardiovascular medicine.Left ventricular bronchogenic cyst.Circulation, 2007. 116(16): p. e385-7.
  18. Klass, O, Fischer, UM, Perez, E, Easo, J, Bosse, M, Fischer, JH, Tossios, P, and Mehlhorn, U,
    Effect of the Na+/H+ exchange inhibitor eniporide on cardiac performance and myocardial high energy phosphates in pigs subjected to cardioplegic arrest.Ann Thorac Surg, 2004. 77(2): p. 658-63.
  19. Fischer, UM, Klass, O, Stock, U, Easo, J, Geissler, HJ, Fischer, JH, Bloch, W, and Mehlhorn, U,
    Cardioplegic arrest induces apoptosis signal-pathway in myocardial endothelial cells and cardiac myocytes.Eur J Cardiothorac Surg, 2003. 23(6): p. 984-90.
  20. Mehlhorn, U, Krahwinkel, A, Geissler, HJ, LaRosee, K, Fischer, UM, Klass, O, Suedkamp, M, Hekmat, K, Tossios, P, and Bloch, W,Nitrotyrosine and 8-isoprostane formation indicate free radical-mediated injury in hearts of patients subjected to cardioplegia.J Thorac Cardiovasc Surg, 2003. 125(1): p. 178-83.
  21. Tossios, P, Bloch, W, Huebner, A, Raji, MR, Dodos, F, Klass, O, Suedkamp, M, Kasper, SM, Hellmich, M, and Mehlhorn, U,
    N-acetylcysteine prevents reactive oxygen species-mediated myocardial stress in patients undergoing cardiac surgery: results of a randomized, double-blind, placebo-controlled clinical trial.J Thorac Cardiovasc Surg, 2003. 126(5): p. 1513-20.
  22. Klass, O, Mehlhorn, U, Zilkens, K, Kroner, A, Hekmat, K, Geissler, HJ, and de Vivie, ER,
    Impact of hematocrit value after coronary artery surgery on perioperative myocardial infarction rate.Thorac Cardiovasc Surg, 2002. 50(5): p. 259-65.
  23. Volk, O, Schnitker, W, Brass, P, Klass, O, Bosse, M, Boerner, U, Fischer, JH, and Schregel, W,
    [Detection of air embolism by a re-usable Doppler probe integrated in a central venous line–application in-vivo].Anaesthesist, 2002. 51(9): p. 716-20.