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Titolo:
An MRI-based parcellation method for the temporal lobe
Autore:
Kim, JJ; Crespo-Facorro, B; Andreasen, NC; OLeary, DS; Zhang, BQ; Harris, G; Magnotta, VA;
Indirizzi:
Univ Iowa Hosp & Clin, Coll Med, Dept Psychiat, Mental Hlth Clin Res Ctr, Iowa City, IA 52242 USA Univ Iowa Hosp & Clin Iowa City IA USA 52242 Ctr, Iowa City, IA 52242 USA Chungbuk Natl Univ Hosp, Dept Neuropsychiat, Cheongju, South Korea Chungbuk Natl Univ Hosp Cheongju South Korea iat, Cheongju, South Korea
Titolo Testata:
NEUROIMAGE
fascicolo: 4, volume: 11, anno: 2000,
pagine: 271 - 288
SICI:
1053-8119(200004)11:4<271:AMPMFT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; LEFT-RIGHT ASYMMETRIES; PRACTICED FREE-RECALL; HUMAN AUDITORY-CORTEX; HUMAN CEREBRAL-CORTEX; PLANUM-TEMPORALE; VOLUME MEASUREMENT; SYLVIAN FISSURE; HUMAN NEOCORTEX; HESCHLS GYRUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
61
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, JJ Univ Iowa Hosp & Clin, Coll Med, Dept Psychiat, Mental Hlth Clin Res Ctr, Iowa City, IA 52242 USA Univ Iowa Hosp & Clin Iowa City IA USA 52242 a City, IA 52242 USA
Citazione:
J.J. Kim et al., "An MRI-based parcellation method for the temporal lobe", NEUROIMAGE, 11(4), 2000, pp. 271-288

Abstract

The temporal lobe has long been a focus of attention with regard to the underlying pathology of several major psychiatric illnesses. Previous postmortem and imaging studies describing regional volume reductions or perfusion defects in temporal subregions have shown inconsistent findings, which are in part due to differences in the definition of the subregions and the methodology of measurement. The development of precise reproducible parcellation systems on magnetic resonance images may help improve uniformity of results in volumetric MR studies and unravel the complex activation patterns seen in functional neuroimaging studies. The present study describes detailed guidelines for the parcellation of the temporal neocortex. It parcels the entire temporal neocortex into 16 subregions: temporal pole, heschl's gyrus,planum temporale, planum polare, superior temporal gyrus (rostral and caudal), middle temporal gyrus (rostral, intermediate, and caudal), inferior temporal gyrus (rostral, intermediate, and caudal), occipitotemporal gyrus (rostral and caudal), and parahippocampal gyrus (rostral and caudal). Based upon topographic landmarks of individual sulci, every subregion was consecutively traced on a set of serial coronal slices. In spite of the huge variability of sulcal topography, the sulcal landmarks could be identified reliably due to the simultaneous display of three orthogonal (transaxial, coronal, and sagittal) planes, triangulated gray matter isosurface, and a 3-D-rendered image. The reliability study showed that the temporal neocortex could be parceled successfully and reliably; intraclass correlation coefficient for each subregion ranged from 0.62 to 0.99. Ultimately, this method will permit us to detect subtle morphometric impairments or to find abnormal patterns of functional activation in the temporal subregions that might reflect underlying neuropathological processes in psychiatric illnesses such as schizophrenia. (C) 2000 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 09:21:04