Dynamic gadolinium-enhanced three-dimensional abdominal MR arteriography.
The abdominal aorta and renal, visceral, and iliac arteries were evaluated in 16 patients with three-dimensional Fourier transform imaging enhanced with gadopentetate dimeglumine. By imaging dynamically during the arterial phase of a 5-minute injection (0.2 mmol/kg), highly significant (P < .0001) preferential arterial enhancement (signal-to-noise ratio +/- standard deviation, 10 +/- 0.9), with minimal enhancement of the inferior vena cava (5.1 +/- 1.4) or background tissues (fat, 4.3 +/- 0.7; muscle, 2.4 +/- 0.5), was achieved in every patient. In six patients with angiographic and/or surgical correlation, 10 of 10 stenoses and two of two occlusions were correctly identified. No in-plane saturation or pulsatility artifact was identified in any of the 16 patients. In conclusion, dynamic imaging during the injection of gadopentetate dimeglumine is a promising technique for evaluation of the abdominal aorta and branch vessels.
Prince
M R
MR
Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston.
Yucel
E K
EK
Kaufman
J A
JA
Harrison
D C
DC
Geller
S C
SC
D000005:Abdomen / Q000098:blood supply*; D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000150:complications / Q000175:diagnosis; D001157:Arterial Occlusive Diseases / Q000175:diagnosis; D001808:Blood Vessels / Q000473:pathology; D003287:Contrast Media; D003327:Coronary Disease / Q000150:complications; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives*; D014682:Vena Cava, Inferior / Q000473:pathology
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA