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Books > Medicine > Clinical & internal medicine > Haematology
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Radiological Functional Analysis of the Vascular System - Contrast Media - Methods - Results (Paperback, Softcover reprint of the original 1st ed. 1983)
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Radiological Functional Analysis of the Vascular System - Contrast Media - Methods - Results (Paperback, Softcover reprint of the original 1st ed. 1983)
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Scientists and engineers have been involved in medical radiology
from the very beginning. At times advances in this field occur at a
tremen dously fast pace. Developments in radiological diagnostics
have - technologically and medically speaking - focused on
morphology. At present, computer-aided tomography (CAT) is at a
high point in deve1opment, medical application, and validation. The
preconditions for this success were rapid advances in electronics
and computer technology - in hardware and in software - and an
unexpected cost reduction in these fields; the co operation of
various scientific disci plines was also essential. Functional
radiological diagnosis has been neglected in part, owing to the
emphasis on morphology, but alone the synthesis of morphology and
function prornises further advances. Apart from the limited
capabilities ofuItrasonic techniques there is no way other than
using X-rays to carry out functional studies of organs and their
systems through an intact body surface. It is frequently necessary
to do further processing and evaluation of image series which have
been recorded from the morphological viewpoint. This further
picture processing may be of selected points (pixels) in the image,
of certain regions of interest (ROI), or of the overall picture.
For the measure ment of rapid phenomena, such as the blood flow in
the main arteries, high image-frame rates are required, and at the
moment these can only be achieved with cinemascopic techniques. For
slower processes, other techniques such as videography have some
advan tages.
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