Reduction of Aneurysm Clip Artifacts on CT Angiograms: A Technical Note

We describe a head tilt technique for use with CT angiography that reduces beam-hardening artifacts in patients with aneurysm clips. This simple maneuver directs the artifacts away from pertinent anatomy, thus increasing the chances for diagnostic accuracy. No significant changes in the CT angiograp...

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Veröffentlicht in:	American journal of neuroradiology : AJNR 1999-04, Vol.20 (4), p.694-696
Hauptverfasser:	Brown, James H, Lustrin, Elizabeth S, Lev, Michael H, Ogilvy, Christopher S, Taveras, Juan M
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Brain Cerebral Angiography Cerebral Arteries - diagnostic imaging Circle of Willis - diagnostic imaging Head - anatomy & histology Humans Intracranial Aneurysm - diagnostic imaging Intracranial Aneurysm - surgery Investigative techniques, diagnostic techniques (general aspects) Medical sciences Metals Nervous system Neurology Posture Radiodiagnosis. Nmr imagery. Nmr spectrometry Radiographic Image Enhancement - methods Supine Position Tomography, X-Ray Computed Vascular diseases and vascular malformations of the nervous system Vascular Surgical Procedures - instrumentation
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Zusammenfassung:	We describe a head tilt technique for use with CT angiography that reduces beam-hardening artifacts in patients with aneurysm clips. This simple maneuver directs the artifacts away from pertinent anatomy, thus increasing the chances for diagnostic accuracy. No significant changes in the CT angiographic protocol are required, and the maneuver can easily be combined with other artifact-minimizing strategies.
ISSN:	0195-6108 1936-959X