Advances in Imaging Techniques in Ischemic Heart Disease - download pdf or read online

By E. E. van der Wall (auth.), Ernst E. Van Der Wall, Thomas H. Marwick, Johan H. C. Reiber (eds.)

ISBN-10: 9401041636

ISBN-13: 9789401041638

ISBN-10: 9401103658

ISBN-13: 9789401103657

In fresh years there were great advances in cardiac imaging strategies masking the whole spectrum from echocardiography, nuclear cardiology, magnetic resonance imaging to distinction angiography. With recognize to those noninvasive and invasive cardiac imaging modalities, marked technological advancements have allowed the heart specialist to imagine the myocardium in a much more subtle demeanour than traditional imaging used to be able to. Echocardiography has prolonged its area with intravascular ultrasound, cardiovascular nuclear imaging has further positron emission tomography to its line of analysis, magnetic resonance imaging has been broadened with magnetic resonance angiography and spectroscopy, and at last distinction angiograp­ hy has widened its scope with first-class quantitation courses. For a majority of these imaging modalities it truly is real that the appliance of committed quantitative analytic software program applications permits the review of the imaging stories in a extra exact, trustworthy, and reproducible demeanour. It is going with no asserting that those extensions and achievements have ended in more desirable diagnostics and for that reason in more desirable sufferer care. relatively in sufferers with ischemic middle illness, significant growth has been made to discover coronary artery ailment in an early section of the disorder strategy, to keep on with the atherosclerotic adjustments within the coronary arteries, to set up the sensible and metabolic results of the luminal obstructions, and to effectively investigate the result of interventional therapy.

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A particularly attractive technique is magnetic resonance (MR) angiography, which is noninvasive and requires no ionizing radiation or iodinated contrast media. 31 E. E. van der Wall et al. ), Advances in Imaging Techniques in Ischemic Heart Disease 31-45. © 1995 Kluwer Academic Publishers. 32 P. M. T. Pattynama and A. de Roos This article reviews the principles of MR angiography and its current status for imaging the coronary arteries. Ever since the early days of clinical MR imaging it has been known that protons (spins) in flowing blood differ from those in static tissue.

Flowing blood often causes disturbing artifacts in the MR images. Large research efforts have been made not just to mitigate these unwanted flow artifacts, but even to use these artifacts to better advantage. Imaging pulse sequences were designed that on the one hand enhanced the flow effects while on the other hand suppressed signal from the nonmoving, stationary tissues. In the resulting MR images the flowing blood stands out from its surroundings: MR angiography. The MR data can be displayed as images that somewhat resemble conventional X-ray angiograms.

10. Keegan J, Firmin P, Gatehouse D, Longmore DB. The application of breath hold phase velocity mapping techniques to the measurements of coronal artery blood flow velocity: phantom data and initial in vivo results. Magn Reson Med 1994;31 :526-36. 11. Haacke EM, Tkach JA. Fast MR imaging: techniques and clinical applications. AJR Roentgenol 1990;155:951-64. 12. Wehrli FW. Fast-scan magnetic resonance: principles and applications. Magn Reson Q 1990; 6:165-236. 13. Manning WJ, Li W, Edelman RR. A preliminary report comparing magnetic resonance coronary imaging angiography with conventional angiography.

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Advances in Imaging Techniques in Ischemic Heart Disease by E. E. van der Wall (auth.), Ernst E. Van Der Wall, Thomas H. Marwick, Johan H. C. Reiber (eds.)


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