Diagnostic accuracy and reading time to detect intracranial aneurysms on MR angiography using a computer-aided diagnosis system

AJR. American Journal of Roentgenology
Shingo KakedaKunio Doi

Abstract

The objective of our study was to determine whether the use of a computer-aided diagnosis (CAD) system can shorten the reading time while maintaining the diagnostic performance of MR angiography for the detection of intracranial aneurysms. Fifty maximum-intensity-projection MR angiograms in 50 patients (16 intracranial aneurysms and 34 negative cases) were used for this observer performance study. Sixteen radiologists--eight neuroradiologists and eight less experienced radiologists--participated in the observer studies and interpreted the MR angiograms without and with CAD output images using an independent test method. The reading times without and with CAD were compared separately for the aneurysm and negative cases. The observers' performances were evaluated using receiver operating characteristic (ROC) analysis. We analyzed separately the data obtained from neuroradiologists and from less experienced radiologists. For all observers, the mean area under the ROC curve (Az) with CAD was improved compared with that without CAD (0.903 vs 0.851, respectively; p = 0.109), and the mean reading time per case was reduced significantly by 18.1 seconds (28.5%) (from 63.4 to 45.3 seconds, p < 0.05). When CAD output images were available...Continue Reading

References

Feb 1, 1994·Journal of Neurosurgery·T Nakagawa, K Hashi
Sep 23, 2000·European Radiology·Y BabaY Korogi
Jan 23, 2004·AJR. American Journal of Roentgenology·Shingo KakedaKunio Doi
Nov 24, 2004·Seminars in Ultrasound, CT, and MR·Kunio Doi
Oct 24, 2006·AJR. American Journal of Roentgenology·Shingo KakedaKunio Doi
Mar 14, 2007·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Kunio Doi

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Citations

Dec 21, 2007·AJR. American Journal of Roentgenology·Andre KemmlingJohann Scharf
Mar 4, 2008·Nihon Hoshasen Gijutsu Gakkai zasshi·Yoshikazu Uchiyama
Jun 14, 2014·AJNR. American Journal of Neuroradiology·I L Štepán-BuksakowskaB J Erickson
Mar 27, 2012·Academic Radiology·Ronald M Summers
Sep 16, 2011·Academic Radiology·Nancy A Obuchowski
Mar 22, 2014·Neurological Research·Xu ChenXueyuan Liu
Jun 3, 2014·Topics in Magnetic Resonance Imaging : TMRI·Enrique PalaciosEduardo González-Toledo
Aug 14, 2021·AJNR. American Journal of Neuroradiology·B SohnS-K Lee

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