Navigator-gated free-breathing three-dimensional balanced fast field echo (TrueFISP) coronary magnetic resonance angiography.


Autoria(s): Spuentrup E.; Bornert P.; Botnar R.M.; Groen J.P.; Manning W.J.; Stuber M.
Data(s)

2002

Resumo

RATIONALE AND OBJECTIVES: Recent developments of MR imaging equipment enabled high-quality steady state-free-precession (Balanced FFE, True-FISP) MR-imaging with a substantial 'T2 like' contrast, resulting in a high signal intensity of the blood-pool without the application of exogenous contrast agents. It is hypothesized that Balanced-FFE may be valuable for contrast enhancement in 3D free-breathing coronary MRA. MATERIALS AND METHODS: Navigator-gated free-breathing cardiac triggered coronary MRA was performed in 10 healthy adult subjects and three patients with radiograph defined coronary artery disease using a segmented k-space 3D Balanced FFE imaging sequence. RESULTS: High contrast-to-noise ratio between the blood-pool and the myocardium (29 +/- 8) and long segment visualization of both coronary arteries could be obtained in about 5 minutes during free breathing using the present navigator-gated Balanced-FFE coronary MRA approach. First patient results demonstrated successful display of coronary artery stenoses. CONCLUSION: Balanced FFE offers a potential alternative for endogenous contrast enhancement in navigator-gated free-breathing 3D coronary MRA. The obtained results together with the relatively short scanning time warrant further studies in larger patient collectives.

Identificador

http://serval.unil.ch/?id=serval:BIB_273F0AE6E72A

isbn:0020-9996[print], 0020-9996[linking]

pmid:12393977

doi:10.1097/01.RLI.0000031475.03566.12

isiid:000178833100008

Idioma(s)

en

Fonte

Investigative Radiology, vol. 37, no. 11, pp. 637-642

Palavras-Chave #Adult; Coronary Disease/diagnosis; Female; Humans; Imaging, Three-Dimensional; Magnetic Resonance Angiography/methods; Male; Middle Aged
Tipo

info:eu-repo/semantics/article

article