Articles describing specific CT protocols require different subheadings as the usual epidemiology, clinical presentation, pathology, etc., are not applicable.
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An introductory sentence, with the article's title repeated and emboldened, e.g., The computed tomography pulmonary angiogram (CTPA/CTPE) is a commonly performed diagnostic examination to exclude pulmonary emboli. Each radiology department will have a slightly different method for achieving the same outcome, i.e. adequate enhancement of the pulmonary trunk and its branches.
A brief explanation (italicised) stating it is understood this is not a one-size-fits-all protocol, e.g., NB: This article is intended to outline some general principles of protocol design. The specifics will vary depending on CT hardware and software, radiologists' and referrers' preferences, institutional protocols, patient factors (e.g. allergy) and time constraints.
On this page:
Indications
Brief indications for the exam, for example, CT perfusion studies are performed in the context of patients presenting with acute neurological symptoms that may represent cerebral infarction or cerebral haemorrhage. It is often the penultimate study in the code stroke CT pathway.
Purpose
The end goal of the exam, which makes the exam diagnostic and why for example The purpose of this scan is to measure/observe contrast enhancement as it makes its way through the arterial and venous system, making this a 'functional scan'. The scan will calculate the enhancement (if any) over time.
Contraindications
Technique
patient position
scout
scan extent
scan direction
scan duration
contrast injection considerations
scan delay
Practical points
Anything that is useful for the radiographer or radiologist regarding this exam.
Post-processing
Not all articles will require post-processing tips however some are quite relevant for example the CT perfusion brain.
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