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Titolo:
Multisection dynamic CT perfusion for acute cerebral ischemia: The "toggling-table" technique
Autore:
Roberts, HC; Roberts, TPL; Smith, WS; Lee, TJ; Fischbein, NJ; Dillon, WP;
Indirizzi:
Univ Calif San Francisco, Dept Radiol, San Francisco, CA 94143 USA Univ Calif San Francisco San Francisco CA USA 94143 ancisco, CA 94143 USA Univ Calif San Francisco, Dept Neurol, San Francisco, CA 94143 USA Univ Calif San Francisco San Francisco CA USA 94143 ancisco, CA 94143 USA
Titolo Testata:
AMERICAN JOURNAL OF NEURORADIOLOGY
fascicolo: 6, volume: 22, anno: 2001,
pagine: 1077 - 1080
SICI:
0195-6108(200106/07)22:6<1077:MDCPFA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACUTE STROKE; DIFFUSION; BRAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Roberts, HC Univ Calif San Francisco, Dept Radiol, San Francisco, CA 94143USA Univ Calif San Francisco San Francisco CA USA 94143 94143 USA
Citazione:
H.C. Roberts et al., "Multisection dynamic CT perfusion for acute cerebral ischemia: The "toggling-table" technique", AM J NEUROR, 22(6), 2001, pp. 1077-1080

Abstract

A new CT perfusion technique providing extended anatomic coverage was evaluated in 12 patients with suspected acute middle cerebral artery ischemia. With a multidetector CT scanner, scans were obtained in an alternating fashion at two distinct "toggling" table positions (two l-cm sections each) during a 40-mL contrast agent bolus (approximately 5 seconds per image), and perfusion parameter maps were created. The CT perfusion results were compared with follow-up images. Nine patients showed focal perfusion abnormalities in at least one section, most commonly on mean transit time maps. Using a single table location would have underestimated or missed the involved tissue in most cases. In three of 12 patients, perfusion maps failed to delineate any abnormality. In two patients, perfusion and diffusion MR imaging confirmed the absence of perfusion abnormality and tissue injury, respectively. In one case, a small ischemic injury was revealed by diffusion MR imaging. By using the toggling-table approach, perfusion images can be obtained over an extended anatomic area and, thus, reveal the presence and the extent of presumed tissue injury.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 08:27:10