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Titolo:
COMPARISON AND EVALUATION OF RETROSPECTIVE INTERMODALITY BRAIN IMAGE REGISTRATION TECHNIQUES
Autore:
WEST J; FITZPATRICK JM; WANG MY; DAWANT BM; MAURER CR; KESSLER RM; MACIUNAS RJ; BARILLOT C; LEMOINE D; COLLIGNON A; MAES F; SUETENS P; VANDERMEULEN D; VANDENELSEN PA; NAPEL S; SUMANAWEERA TS; HARKNESS B; HEMLER PF; HILL DLG; HAWKES DJ; STUDHOLME C; MAINTZ JBA; VIERGEVER MA; MALANDAIN G; PENNEC X; NOZ ME; MAGUIRE GQ; POLLACK M; PELIZZARI CA; ROBB RA; HANSON D; WOODS RP;
Indirizzi:
VANDERBILT UNIV,DEPT COMP SCI,BOX 1679 STN B NASHVILLE TN 37235 VANDERBILT UNIV,DEPT COMP SCI NASHVILLE TN 37235 VANDERBILT UNIV,DEPT ELECT ENGN NASHVILLE TN 37235 VANDERBILT UNIV,DEPT BIOMED ENGN NASHVILLE TN 37235 VANDERBILT UNIV,DEPT RADIOL NASHVILLE TN 37235 VANDERBILT UNIV,DEPT NEUROL SURG NASHVILLE TN 37235 STANFORD UNIV,MED CTR STANFORD CA 94305 UNIV CALIF LOS ANGELES,SCH MED LOS ANGELES CA 90024 WAKE FOREST UNIV,BOWMAN GRAY SCH MED WINSTON SALEM NC 00000 NYU,MED CTR NEW YORK NY 10016 UNIV CHICAGO HOSP CHICAGO IL 60637 MAYO CLIN ROCHESTER MN 00000 UNIV RENNES RENNES FRANCE INRIA SOPHIA ANTIPOLIS FRANCE KATHOLIEKE UNIV LEUVEN B-3001 LOUVAIN BELGIUM UMDS,GUYS & ST THOMAS HOSP LONDON ENGLAND UNIV UTRECHT HOSP UTRECHT NETHERLANDS
Titolo Testata:
Journal of computer assisted tomography
fascicolo: 4, volume: 21, anno: 1997,
pagine: 554 - 566
SICI:
0363-8715(1997)21:4<554:CAEORI>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
CT; MRI; PET;
Keywords:
IMAGE REGISTRATION; COMPUTED TOMOGRAPHY; MAGNETIC RESONANCE IMAGING; EMISSION COMPUTED TOMOGRAPHY; IMAGE QUALITY; MAGNETIC RESONANCE IMAGING, PHYSICS AND INSTRUMENTATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
J. West et al., "COMPARISON AND EVALUATION OF RETROSPECTIVE INTERMODALITY BRAIN IMAGE REGISTRATION TECHNIQUES", Journal of computer assisted tomography, 21(4), 1997, pp. 554-566

Abstract

Purpose: The primary objective of this study is to perform a blinded evaluation of a group of retrospective image registration techniques using as a gold standard a prospective, marker-based registration method. To ensure blindedness, all retrospective registrations were performed by participants who had no knowledge of the gold standard results until after their results had been submitted. A secondary goal of the project is to evaluate the importance of correcting geometrical distortion in MR images by comparing the retrospective registration error in the rectified images, i.e., those that have had the distortion correction applied, with that of the same images before rectification. Method: Image volumes of three modalities (CT, MR, and PET) were obtained from patients undergoing neurosurgery at Vanderbilt University Medical Center on whom bone-implanted fiducial markers were mounted. These volumes had all traces of the markers removed and were provided via the Internet to project collaborators outside Vanderbilt, who then performedretrospective registrations on the volumes, calculating transformations from CT to MR and/or from PET to MR. These investigators communicated their transformations again via the Internet to Vanderbilt, where the accuracy bf each registration was evaluated. In this evaluation, the accuracy is measured at multiple volumes of interest (VOIs), i.e., areas in the brain that would commonly be areas of neurological interest. A VOI is defined in the MR image and its centroid c is determined. Then, the prospective registration is used to obtain the correspondingpoint c' in CT or PET. To this point, the retrospective registration is then applied, producing c '' in MR. Statistics are gathered on the target registration error (TRE), which is the distance between the original point c and its corresponding point c ''. Results: This article presents statistics on the TRE calculated for each registration technique in this study and provides a brief description of each technique and an estimate of both preparation and execution time needed to perform the registration. Conclusion: Our results indicate that retrospective techniques have the potential to produce satisfactory results much of the time, but that visual inspection is necessary to guard against large errors.

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Documento generato il 26/05/20 alle ore 05:18:25