Abstract
In echocardiology ultrasound backscattering is used to visualize heart structures. The various realtime cardiac scanners give detailed dynamic pictures of the moving boundaries of cardiac anatomy [1, 2, 3, 4]. The intensity of ultrasonic backscattering from within the myocardial tissue may vary with the normal and ischemic status of the heart tissue [5, 6]. Balasubram-anian Rajagopalan, et al., [7] first reported that regional myocardial perfusion could be imaged using ultrasonic backscattering when suitable contrast agents were arterially introduced. Using a 10 MHz high resolution B-scanner that was placed directly on the surface of the heart of anesthetized dog after a left thoracotomy, the authors showed that the backscattering from the myocardial mass was enhanced significantly if an ultrasound contrast agent such as indocyanine green was injected into the left ventricle or at the aortic root. This enhancement of backscattering was observed to be related to regional blood flow since after deprivation of blood supply to a region of the myocardium, the intensity of backscattering from the deprived region did not exhibit enhancement with the injection of the contrast agent.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Kloster, F. E., J. Roelandt, F. J. Ten Cate, N. Born, and P. G. Hugenhotz: Multiscan echocardiography. II Techniques and initial clinical results. Circulation 48:1075–1084, 1973.
Griffith, J. M., and W. L. Henry: A sector scanner for real-time two-dimensional echocardiography. Circulation 49:1147–1152, 1974
Kisslo, J., O. T. Van Ramm, and F. L. Thurstone: Cardiac imaging using a phased array ultrasound system. II. Clinical technique and application. Circulation 53:262–267, 1976.
Tajik, A. J., J. B. Seward, D. J. Hagler, D. D. Mair, and J. T. Lie: Two-dimensional real-time ultrasonic imaging of the heart and great vessles: Technique, image orientation, structure identification, and validation. Mayo Clinic Proceedings 53:271–303, 1978.
Balasubramanian Rajagopalan and J. F. Greenleaf: 1977 Unpublished results.
O’Donnell, M., D. Bauwens, J. W. Mimbs, and J. G. Miller: In vivo detection of acute myocardial ischemia in the dog by quantitative ultrasonic backscatter. Fourth International Symposium on ultrasonic imaging and tissue characterization, June 18-20, Gaithersburg, Maryland.
Balasubramanian Rajagopalan, J. F. Greenleaf, P. A. Chevalier, and R. C. Bahn: Myocardial blood flow: visualization with ultrasonic contrast agents. Acoustical Imaging 8:719–729, 1980, edited by A. F. Metherell. Plenum Publishing Corporation.
Buxton, J., E. DiMagno, D. Wilson, J. Suarez, P. Regan, R. Hattery, and P. Green: Initial results in the development of an ultrasonic endoscope. Proceedings of the 24th Annual Meeting of AIUM, 1:121, 1979.
DiMagno, E. P., J. L. Buxton, P. T. Reagan, R. R. Hattery, D. A. Wilson, J. R. Suarez, and P. S. Green: Canine intragastroesophageal ultrasonography. Clinical Research 27:628A 1979.
DiMagno, E. P., J. L. Buxton, P. T. Reagan, R. R. Hattery, D. A. Wilson, J. R. Suarez, and P. S. Green: The Ultrasonic Endoscope (Lancet — to be published).
Harris, L. D., R. A. Robb, T. S. Yuen, and E. L. Ritman: Display and visualization of three-dimensional reconstructed anatomic morphology: Experience with the thorax, heart, and coronary vasculature of dogs. Journal of Computer Assisted Tomography 3:439–446, 1979.
Hisanaga, K., and A. Hisanaga: A new transesophageal radial scanner using a rotating flexible shaft and initial clnical results. Proceedings of the 24th Annual Meeting of the AIUM, 1:122, 1979.
Tyler, T. D., A. H. Gobuty, J. Shewmaker, and N. F. Maklad: In vivo quantitation of induced ultrasonic contrast effects in the mouse. Ninth International Symposium on Acoustical Imaging, December 3-6, 1979, Houston, Texas. Acoustical Imaging, Vol. 9. Plenum Press.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1980 Plenum Press, New York
About this chapter
Cite this chapter
Rajagopalan, B. et al. (1980). Transesophageal Ultrasonic Imaging of the Heart. In: Wang, K.Y. (eds) Acoustical Imaging. Acoustical Imaging, vol 9. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-3755-3_34
Download citation
DOI: https://doi.org/10.1007/978-1-4684-3755-3_34
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-3757-7
Online ISBN: 978-1-4684-3755-3
eBook Packages: Springer Book Archive