PMID: 9169571Jun 1, 1997Paper

Evaluation of the limits of visual detection of image misregistration in a brain fluorine-18 fluorodeoxyglucose PET-MRI study

European Journal of Nuclear Medicine
J C WongM N Maisey

Abstract

In routine clinical work, registration accuracy is assessed by visual inspection. However, the accuracy of visual assessment of registration has not been evaluated. This study establishes the limits of visual detection of misregistration in a registered brain fluorine-18 fluorodeoxyglucose positron emission tomography to magnetic resonance image volume. The "best" registered image volume was obtained by automatic registration using mutual information optimization. Translational movements by 1 mm, 2 mm, 3 mm and 4 mm, and rotational movements by 1 degrees , 2 degrees , 3 degrees and 4 degrees in the positive and negative directions in the x- (lateral), y- (anterior-posterior) and z- (axial) axes were introduced to this standard. These 48 images plus six "best" registered images were presented in random sequence to five observers for visual categorization of registration accuracy. No observer detected a definite misregistration in the "best" registered image. Evaluation for inter-observer variation using observer pairings showed a high percentage of agreement in assigned categories for both translational and rotational misregistrations. Assessment of the limits of detection of misregistration showed that a 2-mm translational misr...Continue Reading

References

Jan 1, 1992·European Journal of Nuclear Medicine·M N MaiseyA M Lukawieck-Vydelingum
Feb 1, 1981·Journal of Computer Assisted Tomography·M BergströmL Widén
Oct 1, 1994·Seminars in Nuclear Medicine·D A Weber, M Ivanovic

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Citations

Feb 13, 2001·Biological Psychiatry·W C DrevetsC A Mathis
Dec 20, 2000·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·G BerksD G von Keyserlingk
Aug 22, 2003·Seminars in Nuclear Medicine·Rik StokkingMax A Viergever
Nov 24, 2005·AJR. American Journal of Roentgenology·Fabrice GutmanPierre Véra
Jun 22, 2002·AJR. American Journal of Roentgenology·Daniel P Barboriak, James M Provenzale
Aug 12, 2008·Computer Methods and Programs in Biomedicine·Lisa TangAnna Celler
Apr 5, 2014·Journal of Magnetic Resonance Imaging : JMRI·Chaitanya KalavaguntaGregory J Metzger

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