Application of three-dimensional contrast-enhanced magnetic resonance angiography in renal artery angiography / 南方医科大学学报
Journal of Southern Medical University
; (12): 687-688, 2006.
Article
de Zh
| WPRIM
| ID: wpr-282944
Bibliothèque responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To increase the probability of successful renal artery angiography with a three-dimensional contrast-enhanced magnetic resonance angiography (3D CE-MRA).</p><p><b>METHODS</b>3D CE-MRA was performed in 33 patients with hypertension. To calculate the scan delay time, a testing contrast agent bolus of 2 ml was injected for single sagittal slice real-time scanning, followed by oblique coronal 3D Fast TOF SPGRE. With maximum intensity projection, a set of images was acquired.</p><p><b>RESULTS</b>Exact scan delay time was obtained in all the cases from which clear images were acquired with the exception of two cases in which failure of breath-holding occurred during the scanning.</p><p><b>CONCLUSION</b>This examination enhances the performance by adopting elliptical-centric k-space recording for data acquisition for the center in k-space at the beginning of acquisition, and utilizing preceding testing bolus injection and signal intensity/time curve for determining the scan delay time, using slice selection and multiview image reconstruction.</p>
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Artère rénale
/
Amélioration d'image
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Angiographie par résonance magnétique
/
Produits de contraste
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Imagerie tridimensionnelle
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Diagnostic
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Hypertension rénovasculaire
/
Méthodes
Type d'étude:
Diagnostic_studies
Limites du sujet:
Adolescent
/
Adult
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Aged
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Female
/
Humans
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Male
langue:
Zh
Texte intégral:
Journal of Southern Medical University
Année:
2006
Type:
Article