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Titolo:
3-DIMENSIONAL TIME-OF-FLIGHT MR-ANGIOGRAPHY USING SELECTIVE INVERSION-RECOVERY RAGE WITH FAT-SATURATION AND ECG-TRIGGERING - APPLICATION TORENAL-ARTERIES
Autore:
LI D; HAACKE EM; MUGLER JP; BERR S; BROOKEMAN JR; HUTTON MC;
Indirizzi:
WASHINGTON UNIV,MALLINCKRODT INST RADIOL,DIV RADIOL RES,510 S KINGSHIGHWAY ST LOUIS MO 63110 UNIV VIRGINIA,DEPT RADIOL CHARLOTTESVILLE VA 22903 UNIV HOSP CLEVELAND,DEPT SURG CLEVELAND OH 44106
Titolo Testata:
Magnetic resonance in medicine
fascicolo: 4, volume: 31, anno: 1994,
pagine: 414 - 422
SICI:
0740-3194(1994)31:4<414:3TMUSI>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-RESONANCE; CONTRAST; SUPPRESSION; ABDOMEN; FLOW;
Keywords:
RENAL ARTERY; MR ANGIOGRAPHY; 3-DIMENSIONAL MR IMAGING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
D. Li et al., "3-DIMENSIONAL TIME-OF-FLIGHT MR-ANGIOGRAPHY USING SELECTIVE INVERSION-RECOVERY RAGE WITH FAT-SATURATION AND ECG-TRIGGERING - APPLICATION TORENAL-ARTERIES", Magnetic resonance in medicine, 31(4), 1994, pp. 414-422

Abstract

A three-dimensional (3D), ECG-triggered, selective inversion recovery(SIR) rapid gradient-echo (RAGE) technique is proposed to obtain MR angiograms of the main renal arteries. By using the selective inversionrecovery and fat saturation, the background is significantly suppressed while blood maintains a high signal intensity as compared with conventional 3D time-of-flight (TOF) MR angiography. The sequence is ECG-triggered so that blood in-flow is maximized during systole, and intravoxel dephasing and pulsatile flow artifacts are minimized by collecting data during diastole. As a result, vessel boundary blurring and ghosting artifacts due to background motion are dramatically reduced, and the conspicuity and lumen definition of the arteries are significantlyimproved. High-quality MR angiograms of the main renal arteries with excellent blood/tissue contrast and suppression of motion artifacts have been consistently obtained for normal volunteers, with the length of visualization being 51 +/- 07 mm for the left, and 57 +/- 06 mm for the right renal arteries, significantly greater than using conventional 3D TOF pulse sequences. Statistical analysis was performed by using a one-sided Student's t test.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 15:04:31