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Titolo:
REGISTRATION OF IMAGES FROM SEQUENTIAL MR STUDIES OF THE BRAIN
Autore:
NELSON SJ; NALBANDIAN AB; PROCTOR E; VIGNERON DB;
Indirizzi:
UNIV CALIF SAN FRANCISCO,CTR MAGNET RESONANCE SCI,DEPT RADIOL,1 IRVING ST SAN FRANCISCO CA 94143
Titolo Testata:
Journal of magnetic resonance imaging
fascicolo: 6, volume: 4, anno: 1994,
pagine: 877 - 883
SICI:
1053-1807(1994)4:6<877:ROIFSM>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; ANATOMICAL LOCALIZATION; PET IMAGES; CT; HEADHOLDER; ALIGNMENT; SYSTEM;
Keywords:
BRAIN, MR; BRAIN NEOPLASMS, MR; IMAGE PROCESSING; IMAGE REGISTRATION; 3-DIMENSIONAL IMAGING;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
S.J. Nelson et al., "REGISTRATION OF IMAGES FROM SEQUENTIAL MR STUDIES OF THE BRAIN", Journal of magnetic resonance imaging, 4(6), 1994, pp. 877-883

Abstract

For sequential studies of patients with brain tumors, the authors have designed an automated registration procedure for intra- and interexamination alignment of magnetic resonance images. This was evaluated with artificially misregistered data and data from repeat studies of sixhealthy volunteers and six brain tumor patients. In a subset of cases, a manual procedure based on matching of neuroanatomic landmarks was also applied for comparison. The results showed that the technique is robust and reproducible, giving an accuracy in the range of 1-2 mm, which corresponded to the spatial resolution of the images. Subject motion between imaging sequences within the same study was negligible, although adjustments (one to two section thicknesses) were required in the z direction to correlate multisection and volume images and to allowaccurate image segmentation. For alignment between sequential volunteer and patient examinations, translations of up to 22 mm and rotationsin the x, y, and z axes of up to 9 degrees were required. This alignment procedure may be valuable in numerous aspects of treatment planning and patient follow-up.

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Documento generato il 05/12/20 alle ore 02:05:17