Diagnostic radiology physics handbook for teachers and students
The application of physical principles to reveal internal structures of the
body Sparked the imagination of the medical profession in the late 19th century
and rapidly became the foundation of the practice of diagnostic radiology.
The efforts of physical scientists have continued to fuel innovation in medical
imaging through a progression of technologies, including the specialization of
X ray imaging devices for examination of the breast, blood vessels, moving
vessels, teeth and bone density. The use of high frequency sound waves has
allowed the instantaneous imaging of soft tissues without the dangers associated
with ionizing radiation. The use of mathematical image reconstruction has
allowed the visualization of sections of the body, free from the confusion
caused by overlying tissue as seen in the computed tomography scanner and the
magnetic resonance imager, while the developments in computers have allowed
the electronic capture, processing and transfer of medical images.
As was quickly discovered with the application of X rays for medical
imaging, the use of radiation on living tissue is not without risk of biological
injury. The measurement of radiation, its interaction with matter and its
biological effects have led to the studies of radiation dosimetry, radiation biology
and epidemiology. These studies are becoming more important in modern
radiological imaging as the number, length and complexity of X ray procedures
received by the population continues to increase rapidly.
It is in this complex environment that the medical physicist, along with
radiologists and radiographers, plays a significant role in the multidisciplinary
team needed for medical diagnosis. Medical physicists need to be able to advise
on the principles and practice of imaging equipment and assist in purchase
processes and quality assurance. They are required to measure the radiation dose
received by staff and, most importantly, by the patients undergoing diagnostic
examinations. They should be able to advise on the optimal image quality needed
for the diagnostic process and to be able to contribute to scientific research. They
are also well equipped to assume responsibility for the safe use of radiation at a
medical facility.
This book is dedicated to students and teachers involved in programmes
that train professionals for work in diagnostic radiology. It teaches the essential
physics of diagnostic radiology and its application in modern medicine. As
such, it is useful to graduate students in medical physics programmes, residents
in diagnostic radiology and advanced students in radiographic technology
programmes. The level of understanding of the material covered will, of course,
be different for the various student groups; however, the basic language and
knowledge for all student groups is the same. The text is also a key reference for
medical physics residents undergoing a clinical training programme, as well as
those candidates preparing for professional certification examinations.
The text is written to support a set of courses whose content provides the
necessary diagnostic and interventional radiological physics knowledge for all
of modern diagnostic radiology. While the text is mainly aimed at diagnostic
radiology professionals, certain parts may also be of interest to professionals
in other branches of medicine that use ionizing radiation for the treatment of
disease (radiation therapy and nuclear medicine). The contents are also useful
for physicists who are involved in studies of radiation hazards and radiation
protection (health physics).
This book represents a collaborative effort by professionals from many
different countries, who share a common goal of disseminating their diagnostic
radiology physics knowledge and experience to a broad international audience of .
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