Journal article
In vitro accuracy and inter-observer reliability of CT angiography in detecting intracranial aneurysm enlargement
Journal of neurointerventional surgery, Vol.11(10), pp.1015-1018
10/2019
DOI: 10.1136/neurintsurg-2019-014737
PMID: 30842308
Abstract
Background and purposeTo evaluate the accuracy and inter-observer variability when CT angiography is used to identify unruptured intracranial aneurysm growth.MethodsTwo silicone phantom models were used in this study. Each phantom had eight aneurysms of variable size. The size and location of aneurysms in phantom 1 were representative of real patient aneurysms who presented to our institution. Phantom 2 contained aneurysms in the same locations, but with enlargement in various directions. Three blinded board-certified neuroradiologists were asked to identify the size of each aneurysm in three dimensions using CT angiography. The individual enlargement detection rates and inter-observer agreement rates of aneurysm enlargement among the three experts were calculated.ResultsThe detection rate of aneurysm enlargement in one dimension was 58.3% among the three observers. Accurate detection of enlargement in all dimensions was 12.5% among the three observers. Detection accuracy was not related to the size of enlargement. Significant inter-observer measurement variability was present.ConclusionThe use of CT angiography was associated with a poor ability to identify aneurysm enlargementaccurately. Further human studies are required to confirm our findings.
Details
- Title: Subtitle
- In vitro accuracy and inter-observer reliability of CT angiography in detecting intracranial aneurysm enlargement
- Creators
- Sami Al Kasab - Neurology, University of Iowa Hospitals and Clinics, Iowa, IA, USADaichi Nakagawa - Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USAMario Zanaty - Neurosurgery, University of Iowa, Iowa City, Iowa, USAGirish Bathla - Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USABruno Policeni - Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USANeetu Soni - Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USALauren Allan - Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USAJoseph Hudson - University of Iowa Hospitals and Clinics, Iowa City, Iowa, USAKaustubh Limaye - Neurology, University of Iowa, Iowa City, Iowa, USASantiago Ortega-Gutierrez - Division of Neurointerventional Surgery-Interventional Neuroradiology, University of Iowa, Iowa City, Iowa, USAEdgar A Samaniego - Neurology, Neurosurgery and Radiology, University of Iowa, Iowa City, Iowa, USADavid Hasan - Neurological surgery, University of Iowa, Iowa City, Iowa, USA
- Resource Type
- Journal article
- Publication Details
- Journal of neurointerventional surgery, Vol.11(10), pp.1015-1018
- DOI
- 10.1136/neurintsurg-2019-014737
- PMID
- 30842308
- ISSN
- 1759-8478
- eISSN
- 1759-8486
- Language
- English
- Date published
- 10/2019
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Neurology; Radiology; Oral Pathology, Radiology and Medicine; Iowa Neuroscience Institute; Surgery; Neurosurgery; Otolaryngology
- Record Identifier
- 9984020611002771
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