CT of the head - Revision history

Mikael Häggström: /* Brain */ Bolded

2019-01-24T09:42:04Z

Brain: Bolded

2019-01-09T07:13:43Z

Planning: +Trauma

2018-12-20T07:30:52Z

Basic screening: Related

2018-12-12T16:49:15Z

+Stroke

2018-12-02T19:12:03Z

Report: wording

2018-12-02T19:05:11Z

Report: Expanded

2018-12-02T18:54:07Z

Basic screening: Expanded

2018-12-01T12:23:55Z

header title

2018-12-01T12:23:02Z

Reorganized

2018-12-01T12:22:08Z

reorganized

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 *[[First-ever seizure|First-ever '''seizure''']]
 *[[CT in dementia|CT in '''dementia''']]
 ===Extra-cerebral===

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 ;[[CT angiography of the head]]
 This is indicated in identification and characterization of aneurysms, stenosis or other occlusive diseases, arteriovenous malformations, vessel dissections, sinus thrombosis, idiopathic hemorrhage, and other vascular pathologies.<ref name="LianBharatha2011">{{cite journal|last1=Lian|first1=K.|last2=Bharatha|first2=A.|last3=Aviv|first3=R.I.|last4=Symons|first4=S.P.|title=Interpretation Errors in CT Angiography of the Head and Neck and the Benefit of Double Reading|journal=American Journal of Neuroradiology|volume=32|issue=11|year=2011|pages=2132–2135|issn=0195-6108|doi=10.3174/ajnr.A2678}}</ref>
 ==Basic screening==

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 ==Basic screening==
 Apart from any specific requests in the referral, it is appropriate to scroll through the brain in at least two planes in:
-*Parenchymal window. In people over age 50-60, the main finding to look for is ischemia or stroke in the brain. It also allows for a quick glance of extra-cranial structures and the orbits.
+*Parenchymal window. In people over age 50-60, the main finding to look for is ischemia or stroke in the brain. It also allows for a quick glance of extra-cranial structures, the orbits and the paranasal sinuses. In case of substantial mucus filling of one or more sinuses, also evaluate as '''[[CT of sinusitis]]'''.
 *Bleeding window (such as center at 80 HU and width 150 HU)

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 ===Brain===
 *'''[[Transient ischemic attack]]'''
 *[[First-ever seizure|First-ever '''seizure''']]

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 ==Report==
 *Questions or requests on the referral.
-*In people over age 50-60, include even the absence of stroke, preferably using "visible" in the first 24 hours to emphasize that this is generally the time needed before appearance on CT.<ref>{{cite web|url=http://www.radiologyassistant.nl/en/p483910a4b6f14/brain-ischemia-imaging-in-acute-stroke.html|title=Brain Ischemia - Imaging in Acute Stroke|website=Radiology Assistant|author=Majda Thurnher|accessdate=2018-12-02}}</ref><br>Example: ''No visible stroke''.
+*In people over age 50-60, include even the absence of stroke, preferably using "visible" in the first 24 hours after onset of symptoms to emphasize that this is generally the time needed before appearance on CT.<ref>{{cite web|url=http://www.radiologyassistant.nl/en/p483910a4b6f14/brain-ischemia-imaging-in-acute-stroke.html|title=Brain Ischemia - Imaging in Acute Stroke|website=Radiology Assistant|author=Majda Thurnher|accessdate=2018-12-02}}</ref><br>Example: ''No visible stroke''.
 *In cases of possible head trauma, report even the absence of skull fracture.

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 ==Report==
-A succint report only needs to respond to the requests in the referral, as well as additional present findings found upon evaluation.
+*Questions or requests on the referral.
-<br>A somewhat more detailed report includes even the absence of:
+*In people over age 50-60, include even the absence of stroke, preferably using "visible" in the first 24 hours to emphasize that this is generally the time needed before appearance on CT.<ref>{{cite web|url=http://www.radiologyassistant.nl/en/p483910a4b6f14/brain-ischemia-imaging-in-acute-stroke.html|title=Brain Ischemia - Imaging in Acute Stroke|website=Radiology Assistant|author=Majda Thurnher|accessdate=2018-12-02}}</ref><br>Example: ''No visible stroke''.
-*Intracranial bleeding.
+*In cases of possible head trauma, report even the absence of skull fracture.
-*Signs of infarction.
-*Skull fracture
+A somewhat more detailed report includes even the absence of intracranial bleeding.
 {{Reporting}}
 {{Bottom}}

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 [[File:Computed tomography of human brain (5).png|thumb|220px|left|link=CT of normal anatomy of the head|CT of the head with normal anatomy. {{noprint|[[CT of normal anatomy of the head|Click here to scroll through the image stacks.]]}}]]
 <br clear="all">
 ==Associated diseases and conditions==
 ===Brain===
 *'''[[Transient ischemic attack]]'''
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 *Bleeding window (such as center at 80 HU and width 150 HU)
 *Bone window for fracture, at least in emergent exams. It also facilitates a quick glance of the mastoid air cells, the middle ears and the paranasal sinuses in case of fluid/mucus filling.
 ==Report==