Future Developments for MSCT
Development and engineering are continually progressing and it would not be the first time in the evolution of computed tomography that some believe we have reached the zenith. Radiologists see technical improvements year after year Chen et al. (Med Phys 38(2):584–588, 2011), sometimes even quantum leaps and breakthroughs in all fields including data acquisition, image processing and post-processing Liu et al. (Radiology 253(1):98–105, 2009). Hounsfield’s CT prototype featured a rotation time of about 300 s with a maximum image matrix of 80 × 80 pixels Hounsfield (Br J Radiol 68(815):H166–H172, 1995). In comparison, today’s 320-slice scanner delivers rotation times of 350 ms and an image matrix of 512 × 512 pixels Rogalla et al. (Radiol Clin North Am 47(1):1–11, 2009). The pace is breathtaking and technological advances appear limitless if there was not radiation exposure that sets clear boundaries to uncontrolled expansion or unrestrained utilisation of CT in humans. However, priorities regarding the direction of development are laid out clearly: more diagnostic information with less radiation in a shorter scanning time and higher resolution. We may look into a crystal ball in an attempt to predict the future, but let us rather take a step-wise approach to illustrate where technological improvements are clinically desired and where short- and long-term advances can be expected.
KeywordsImprove Image Quality Radiation Dose Reduction Diagnostic Image Quality Metal Artefact Reduction Helical Scanning
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