Beating Heart Cardioscopy: A Platform for Real-Time, Intracardiac Imaging

Tomislav Mihaljevic, Yoshio Ootaki, Jason O. Robertson, Amir K. Durrani, Keiji Kamohara, Masatoshi Akiyama, Faruk Cingoz, Chiyo Ootaki, Raymond Dessoffy, Michael Kopcak, Jenny Liu, Kiyotaka Fukamachi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Purpose: The purpose of this study was to develop a method for real-time, fiberoptic, intracardiac imaging to serve as a platform for closed-chest, intracardiac surgery on the beating heart. Description: Fiberoptic cardioscopy of the left and right heart was conducted in a porcine model. A cardiopulmonary bypass circuit maintained systemic organ perfusion and a separate circuit replaced intracardiac blood with oxygenated, modified Krebs-Henseleit perfusate. Evaluation: Video images of structures in the left and right sides of an in vivo beating heart were obtained, including the inner surface of the left and right atria and ventricles, the mitral and aortic valves, the Thebesian veins, and the coronary sinus. Effective isolation of the heart from systemic and intracardiac blood flow and control of perfusion rates were important factors for successful image acquisition. Conclusions: Fiberoptic cardioscopy is a novel approach that allows for visualization of the structures within a nonarrested heart on bypass. It lays the groundwork for a platform that could lead to more successful percutaneous valvular and intracardiac procedures in a stable hemodynamic environment.

Original languageEnglish
Pages (from-to)1061-1065
Number of pages5
JournalAnnals of Thoracic Surgery
Issue number3
Publication statusPublished - 2008 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine


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