Comparison of Gadomer-17 and Gd-DTPA in image quality of contrast-enhanced MR angiographies using flow phantom model
Yonsei Medical Journal
; : 413-419, 1999.
Article
in En
| WPRIM
| ID: wpr-164927
Responsible library:
WPRO
ABSTRACT
The purpose of this study was to compare the image quality of 3D-TOF MR angiography (MRA) using Gadomer-17 with that using Gd-DTPA in a flow phantom model, and to present preliminary data about the proper dose concentration of Gadomer-17. In the visual analysis of vessel conspicuity, we compared the quality of pre- and post-contrast MIP images. For quantitative analysis, the signal intensities were measured in the axial base 3D-TOF images, and then the relative contrast enhancement was calculated. The results of our studies were that: 1. Maximal signal intensities were obtained at 1 mmol/L of Gadomer-17 and 4 mmol/L of Gd-DTPA. 2. Flow-related signal loss was decreased by Gd-DTPA proportional to the concentration, but Gadomer-17 did not show such a dose accumulative effect. In conclusion, after comparing the results of Gd-DTPA, it was clear that improved MRA images and higher signal intensities of vessels were obtained when lower concentrations of Gadomer-17 were used.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Comparative Study
/
Magnetic Resonance Angiography
/
Contrast Media
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Gadolinium DTPA
/
Dose-Response Relationship, Drug
Limits:
Humans
Language:
En
Journal:
Yonsei Medical Journal
Year:
1999
Type:
Article