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Individually tailored CT protocols: maximizing safety and efficacy
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V. Matarese
CT protocols offer generalized indications on how to maximize the diagnostic yield
of an examination while minimizing potential harm to patients, but radiologists know that a
one-size-fits-all approach to scanning is not necessarily diagnostic or safe. Protocols must be
adapted, taking into account each patient's characteristics and diagnostic needs. At the MDCT
satellite symposium of the 2013 European Congress of Radiology, three expert radiologists explained
how CT protocols can be individually tailored to maximize safety and efficacy. Their presentations,
now available as e-Lectures on MDCT.net, give a preview of a possible future scenario in which CT
examinations are done according to individualized guidelines.
more »
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Brain, and head, and neck / Technical considerations
Radiologists working on two continents tested a
high-pitch, dual-source (2x64-slice) CT angiography protocol
for examining the supra-aortic vasculature. They reported that high-pitch scanning reduced
motion artifacts in vessels near the aortic arch, improving image quality for the diagnosis of
atherosclerotic stenosis.
more »
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Cardiovascular / Technical considerations
High-pitch, dual-source (2x128-slice) CT angiography reached a new target for
radiation dose reduction, according to German researchers reporting in
European Radiology. Their small
feasibility study
illustrated how low tube current and voltage scanning, when supported by the SAFIRE iterative
reconstruction algorithm, produced high quality images of the coronary vasculature with ultra-low
radiation exposure (<0.1 mSv). The work by Schuhbaeck and coworkers is
commented on in an essay
by Cademartiri and colleagues in Italy.
In the
International Journal of Cardiovascular Imaging, Korean researchers reported that another
iterative reconstruction algorithm (AIDR) improved the
quality of coronary CT angiography
images obtained with a 640-slice scanner equipped with an automatic exposure control
system.
more »
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CT colonography
The European Society of Gastrointestinal and Abdominal Radiology (ESGAR) has
revised and updated its consensus statement on CT colonography.
Now available in print
in the journal
European Radiology, these practice guidelines were first published online late last year
when Andrea Laghi, a member of both the ESGAR CT Colonography Working Group and the scientific
committee of this website,
commented on the new edition for MDCT.net
.
more »
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Video recordings from international meetings highlighted for you
From: ECR 2013, MDCT Symposium
Vienna, March 9
Tailoring CT exams: when and how?
C. Loewe
more »
How to balance radiation dose and diagnostic yield
H.C. Becker
more »
What if the patient is at risk?
M.F. Bellin
more »
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A selection of recent cases from our regularly updated column
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Brain, head and neck
Sudden-onset hearing loss
Man, 54 years old
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Slowly progressive hearing loss
Man, 75 years old
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Diplopia
Woman, 77 years old
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Reduced consciousness and history of breast cancer
Woman, 42 years old
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