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Titolo:
FAST 3-DIMENSIONAL TIME-OF-FLIGHT MR-ANGIOGRAPHY OF THE INTRACRANIAL VASCULATURE
Autore:
TALAGALA SL; JUNGREIS CA; KANAL E; MEYERS SP; FOO TKF; RUBIN RA; APPLEGATE GR;
Indirizzi:
UNIV PITTSBURGH,MED CTR,DEPT RADIOL,PITTSBURGH NMR INST,3260 5TH AVE PITTSBURGH PA 15213
Titolo Testata:
Journal of magnetic resonance imaging
fascicolo: 3, volume: 5, anno: 1995,
pagine: 317 - 323
SICI:
1053-1807(1995)5:3<317:F3TMOT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Keywords:
ANEURYSM, CEREBRAL; CEREBRAL BLOOD VESSELS, FLOW DYNAMICS; CEREBRAL BLOOD VESSELS, MR; CONTRAST ENHANCEMENT; GADOLINIUM; RAPID IMAGING; TIME-OF-FLIGHT STUDIES; VASCULAR STUDIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
NO
Recensione:
Indirizzi per estratti:
Citazione:
S.L. Talagala et al., "FAST 3-DIMENSIONAL TIME-OF-FLIGHT MR-ANGIOGRAPHY OF THE INTRACRANIAL VASCULATURE", Journal of magnetic resonance imaging, 5(3), 1995, pp. 317-323

Abstract

Magnetic resonance angiography is most commonly performed with the three-dimensional (3D) time-of-flight (TOF) technique. As currently practiced, this requires long image acquisition times (5-10 minutes). The authors show that the acquisition time of 3D TOF images can be reducedto less than 1 minute by using a very short TR (<10 msec). Under normal flow conditions, the major vessels of the circle of Willis were consistently well demonstrated on these fast 3D TOF images. Signal saturation was observed in studies of patients with abnormal blood flow. In those cases, it was demonstrated that serial acquisition of fast 3D TOF data during and after contrast agent administration could be used toovercome the saturation effects. Time-resolved fast 3D TOF imaging during and after contrast agent administration can also provide qualitative assessment of flow and may depict other features that cannot be observed in TOF studies with long imaging times.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 09:04:18