Cardiovascular

Download e-book for iPad: CT of the Heart Principles and Applications by U. Joseph Schoepf

By U. Joseph Schoepf

ISBN-10: 1617374814

ISBN-13: 9781617374814

Major clinicians and researchers from world wide evaluation the whole scope of present advancements, study, and medical controversy in regards to the ideas and functions of cardiac CT. Richly illustrated with various black-and-white and colour photographs, the publication discusses the translation of CT photos of the center in a number of medical, physiological, and pathological purposes. The authors emphasize present cutting-edge makes use of of CT, but additionally study advancements on the horizon. in addition they evaluate the technical foundation of CT photo acquisition, in addition to instruments for picture visualization and research.

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Extra resources for CT of the Heart Principles and Applications

Example text

Invest Radiol 2001;36(7):363–367. 2. Achenbach S, Ropers D, Holle J, Muschiol G, Daniel WG, Moshage W. In-plane coronary arterial motion velocity: measurement with electron-beam CT. Radiology 2000;216(2):457–463. 3. Title 21 Code of Federal Regulations Part 1020 Section 33(c)(2)(i). 4. McCullough C. Patient dose in computed tomography of the heart. Herz 2003;28:1–6. 5. Budoff MJ, Raggi P. Coronary artery disease progression assessed by electron-beam computed tomography (review). Am J Cardiol 2001;88(2A):46E–50E.

For coronary CT angiography, the contrast medium injection must be carefully tailored by either using a test bolus or automatic bolus triggering technique. Since scan times for imaging of the heart on modern 4-, 8-, or 16-slice CT scanners range from 15 to 40 s, 80 to 150 mL of contrast medium at injection rates between 3 and 5 mL/s is needed to maintain homogenous vascular opacification throughout the scan. Saline chasing has proven manda- 30 OHNESORGE, WESTERMAN, AND SCHOEPF Table 1 Cardiac CT Scan Protocols With 4-Slice and 16-Slice CT ECG-trigger (Ca-Score) Scan range [mm] Collimation per slice [mm] Image thickness [mm] Rotation Time [ms] Table Feed kv/mA Eff.

Stacks of overlapping images can be reconstructed with a temporal resolution of half the rotation time in every cardiac cycle. Continuous 3D images can be reconstructed in different phases of the cardiac cycle by selection of the data ranges with certain phase relations to the R waves. 6-mm slices). For these reasons, retrospective ECG-gated reconstruction is the preferred method for imaging cardiac anatomy and the coronary arteries. Thin slices provide the necessary spatial resolution for diagnosis within a breath-hold time that can be managed by most patients.

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CT of the Heart Principles and Applications by U. Joseph Schoepf


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