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Titolo:
PET AND SPECT - OPPORTUNITIES AND CHALLENGES FOR PSYCHIATRY
Autore:
REBA RC;
Indirizzi:
UNIV CHICAGO,PRITZKER SCH MED,DEPT RADIOL,NUCL MED UNIT,MC 2026,5841 S MARYLAND AVE CHICAGO IL 60637
Titolo Testata:
The Journal of clinical psychiatry
, volume: 54, anno: 1993, supplemento:, S
pagine: 26 - 32
SICI:
0160-6689(1993)54:<26:PAS-OA>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Social Sciences Citation Index
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
R.C. Reba, "PET AND SPECT - OPPORTUNITIES AND CHALLENGES FOR PSYCHIATRY", The Journal of clinical psychiatry, 54, 1993, pp. 26-32

Abstract

Positron emission tomography (PET) and single photon emission computed tomography (SPECT) are the most advanced technologies available for the functional imaging of the brain, surpassing magnetic resonance imaging (MRI) and computed tomography (CT) scanners in potential clinicaland research applications in neuropsychiatry. PET deals with a small number of radionuclides with short physical half-lives and an exclusive energy of 511 keV; SPECT utilizes an ensemble of radionuclides that exhibit moderate physical half-lives, each with its own characteristicspectrum of energy. PET imaging instrumentation requires substantial refinements to enable utilization with high-energy photons, larger data sets, and a high magnitude of information flow per unit of time. Theinstrumentation enables greater sensitivity and resolution, as compared with SPECT, but requires a more extensive data acquisition and processing infrastructure, resulting in a significantly higher system cost. SPECT has a number of price/performance alternatives in configuring a system, and has further cost advantages in that it utilizes widely available chemical tracers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 19:54:34