MEDLINE (through PubMed)

• “Tomography, x-ray computed” (MeSH Terms) OR “tomography” (All Fields) AND “x-ray” (All Fields) AND “computed” (All Fields) OR “x-ray computed tomography” (All Fields) OR “tomography, x-ray computed” (All Fields) OR “CT” (All Fields) AND “subarachnoid haemorrhage” (All Fields) OR “subarachnoid hemorrhage” (MeSH Terms) OR “subarachnoid” (All Fields) AND “hemorrhage” (All Fields) OR “subarachnoid hemorrhage” (All Fields) AND “angiography” (MeSH Terms) OR “angiography” (All Fields) AND “Vasoconstriction” (Mesh) OR “Vasospasm, Intracranial” (Mesh) OR “vasoconstriction” (MeSH Terms) OR “vasoconstriction” (All Fields) OR “vasospasm” (All Fields) AND “humans” (MeSH Terms) AND English (lang) AND “aneurysm” (MeSH Terms) OR “aneurysm” (All Fields) AND “humans” (MeSH Terms) AND English (lang)

Embase (via OVID)

• ct.mp. or exp Computer-Assisted Tomography/AND angiography.mp. AND subarachnoid hemorrhage.mp. or exp Subarachnoid Hemorrhage/AND exp Vasospasm/or exp Brain Vasospasm/or vasospasm.mp. AND exp Intracranial Aneurysm/or ANEURYSM.mp. or exp Aneurysm

• mp. = title, abstract, subject headings, heading word, drug trade name, original title, device manufacturer, drug manufacturer's name

• Search terms: aneurysm, angiography, assisted, brain, computer, hemorrhage, intracranial, subarachnoid, tomography, vasospasm

Cochrane

• Subarachnoid Hemorrhage AND Angiography AND Vasospasm AND Aneurysm AND CT in “Title, Abstract, or Keywords”

Web of Science:

• Topic = (CT) AND Topic = (Subarachnoid Hemorrhage) AND Topic = (Aneurysm) AND Topic = (vasospasm) AND Topic = (angiography)