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Titolo:
FAST NONSUPERVISED 3D REGISTRATION OF PET AND MR-IMAGES OF THE BRAIN
Autore:
MANGIN JF; FROUIN V; BLOCH I; BENDRIEM B; LOPEZKRAHE J;
Indirizzi:
CEA,SERV HOSP FREDERIC JOLIOT,4 PL GEN LECLERC F-91401 ORSAY FRANCE TELECOM PARIS PARIS FRANCE
Titolo Testata:
Journal of cerebral blood flow and metabolism
fascicolo: 5, volume: 14, anno: 1994,
pagine: 749 - 762
SICI:
0271-678X(1994)14:5<749:FN3ROP>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; DISTANCE TRANSFORMATIONS; EDGE-DETECTION; CT; DIMENSIONS; ALGORITHM; SYSTEM;
Keywords:
AUTOMATIC REGISTRATION; CHAMFER MATCHING; FREE-FORM SURFACE MATCHING; ANISOTROPIC DISTANCE MAP; ANATOMICOFUNCTIONAL CORRELATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
51
Recensione:
Indirizzi per estratti:
Citazione:
J.F. Mangin et al., "FAST NONSUPERVISED 3D REGISTRATION OF PET AND MR-IMAGES OF THE BRAIN", Journal of cerebral blood flow and metabolism, 14(5), 1994, pp. 749-762

Abstract

We propose a fully nonsupervised methodology dedicated to the fast registration of positron emission tomography (PET) and magnetic resonance images of the brain. First, discrete representations of the surfacesof interest (head or brain surface) are automatically extracted from both images. Then, a shape-independent surface-matching algorithm gives a rigid body transformation, which allows the transfer of information between both modalities. A three-dimensional (3D) extension of the chamfer-matching principle makes up the core of this surface-matching algorithm. The optimal transformation is inferred from the minimizationof a quadratic generalized distance between discrete surfaces, takinginto account between-modality differences in the localization the segmented surfaces. The minimization process is efficiently performed viathe precomputation of a 3D distance map. Validation studies using a dedicated brain-shaped phantom have shown that the maximum registrationerror was of the order of the PET pixel size (2 mm) for the wide variety of tested configurations. The software is routinely used today in a clinical context by the physicians of the Service Hospitalier Frederic Joliot (>150 registrations performed). The entire registration process requires similar to 5 min on a conventional workstation.

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Documento generato il 07/07/20 alle ore 12:57:12