Difference between revisions of "CT"
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*[[Contrast CT]] | *[[Contrast CT]] | ||
| − | ==General | + | ==General planning== |
| + | Upon receiving a referral for a CT, generally check: | ||
| + | *'''Who''' is the ordering individual? | ||
| + | *'''Where''': From which unit or department? | ||
| + | *'''Requested''' investigation | ||
| + | *'''Targets''': Suspected diseases or other questions or requests | ||
| + | *Patient '''history''' | ||
| + | :*Possible earlier imaging that can already answer the questions? | ||
| + | |||
| + | Consider if another modality is better for the questions at hand. | ||
| + | |||
| + | Choose the proper CT settings for optimal evaluation, including [[contrast CT]] or non-contrast. | ||
| + | |||
| + | ==General post-imaging== | ||
*Check the order form | *Check the order form | ||
| − | :*Who is the ordering individual? | + | :*'''Who''' is the ordering individual? |
| − | :*From which unit? | + | :*'''Where''': From which unit or department? |
| − | :*Patient history | + | :*Patient '''history''' |
| − | :*Requested investigation | + | :*'''Requested''' investigation |
| − | :* | + | :*'''Targets''': |
| − | *Earlier investigations, and their findings | + | *'''Earlier''' investigations, and their findings |
| − | *Examine the images at hand | + | *'''Examine''' the images at hand, including: |
| − | :*Complement with reconstructions where needed, such as volume renderings or thinner slices. | + | :*'''Requested targets''' from the referral, or suspected diseases or other questions |
| − | *Write report {{Reporting}} | + | :*'''Basic screening''', whose targets vary with mainly anatomic location (see [[#Locations|locations above]]), but broadly include: |
| − | :*Check one extra time if | + | ::*'''Soft tissues''', mainly for tumors or other expansions such as hematomas (see [[CT of muscle hematoma]]) |
| + | ::*'''Skeleton''', mainly for fractures (see [[CT of fractures]] and tumors (see [[CT of bone tumors]]). | ||
| + | :*'''Complement''' with reconstructions where needed, such as volume renderings or thinner slices. | ||
| + | *'''Write''' report {{Reporting}} | ||
| + | :*Check one extra time if the reply corresponds to the '''targets''' at hand. | ||
==Hounsfield scale== | ==Hounsfield scale== | ||
*[[Hounsfield scale]] | *[[Hounsfield scale]] | ||
{{Bottom}} | {{Bottom}} | ||
Revision as of 18:40, 7 January 2019
Author:
Mikael Häggström [notes 1]
Contents
By location
With contrast
General planning
Upon receiving a referral for a CT, generally check:
- Who is the ordering individual?
- Where: From which unit or department?
- Requested investigation
- Targets: Suspected diseases or other questions or requests
- Patient history
- Possible earlier imaging that can already answer the questions?
Consider if another modality is better for the questions at hand.
Choose the proper CT settings for optimal evaluation, including contrast CT or non-contrast.
General post-imaging
- Check the order form
- Who is the ordering individual?
- Where: From which unit or department?
- Patient history
- Requested investigation
- Targets:
- Earlier investigations, and their findings
- Examine the images at hand, including:
- Requested targets from the referral, or suspected diseases or other questions
- Basic screening, whose targets vary with mainly anatomic location (see locations above), but broadly include:
- Soft tissues, mainly for tumors or other expansions such as hematomas (see CT of muscle hematoma)
- Skeleton, mainly for fractures (see CT of fractures and tumors (see CT of bone tumors).
- Complement with reconstructions where needed, such as volume renderings or thinner slices.
- Write report
- See also: General notes on reporting
- Check one extra time if the reply corresponds to the targets at hand.
Hounsfield scale
Notes
- ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.
