Document Detail


Arterial phase carotid and vertebral artery imaging in 3D contrast-enhanced MR angiography by combining fluoroscopic triggering with an elliptical centric acquisition order.
MedLine Citation:
PMID:  9660549     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Arterial-phase three-dimensional (3D) contrast-enhanced MR angiograms of the carotid and vertebral arteries from their origins through the carotid bifurcations were obtained in 20 patients using acquisition times over 30 sec by using an MR fluoroscopy-triggered pulse sequence with elliptical centric view order. The typical pixel size was 0.8 mm (x) x 1.6 mm (y) x 1.5 mm (z), and 32-48 coronal slices were acquired. The fluoroscopic monitoring of bolus arrival was effective in 18 of the 20 cases; two failures were attributed directly to a poor choice of RF coil. To exploit peak arterial-to-venous contrast, the central 3D views were acquired first in the most compact time period possible for the given TR. For the 18 successfully triggered cases, arterial-phase 3D images were obtained with excellent venous suppression as demonstrated by an average internal jugular vein to common carotid signal enhancement ratio of only 0.05 +/- 0.04.
Authors:
A H Wilman; S J Riederer; J Huston; J T Wald; J P Debbins
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine     Volume:  40     ISSN:  0740-3194     ISO Abbreviation:  Magn Reson Med     Publication Date:  1998 Jul 
Date Detail:
Created Date:  1998-10-06     Completed Date:  1998-10-06     Revised Date:  2013-01-14    
Medline Journal Info:
Nlm Unique ID:  8505245     Medline TA:  Magn Reson Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  24-35     Citation Subset:  IM    
Affiliation:
Department of Diagnostic Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Aged, 80 and over
Carotid Arteries / pathology*,  radiography
Contrast Media
Female
Fluoroscopy / instrumentation,  methods*
Heterocyclic Compounds / diagnostic use
Humans
Magnetic Resonance Angiography / instrumentation,  methods*
Male
Middle Aged
Organometallic Compounds / diagnostic use
Radiographic Image Enhancement / methods*
Sensitivity and Specificity
Vascular Diseases / diagnosis*
Vertebral Artery / pathology*,  radiography
Grant Support
ID/Acronym/Agency:
CA37993/CA/NCI NIH HHS; HL37310/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Contrast Media; 0/Heterocyclic Compounds; 0/Organometallic Compounds; 0199MV609F/gadoteridol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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