Combining time-resolved and single-phase 3D techniques in contrast-enhanced carotid MR angiography.
We established an easy-to-use technique for performing contrast-enhanced carotid MR angiography (MRA) with a commercial scanner. Twenty-three patients with suspected carotid or vertebral arterial lesions were prospectively studied. Two techniques were applied in the study. After performing sagittal time-resolved acquisitions, we undertook a coronal single-phase 3D acquisition, in which the injection timing was estimated from the preceding images. In each case, we obtained multidirectional images with sufficient venous suppression. The combined use of time-resolved and single-phase 3D MRA is a feasible technique for obtaining selective arterial images without the use of special applications or hardware.
Sasaki
Makoto
M
Department of Radiology, Iwate Medical University, Morioka, Japan. masasaki@iwate-med.ac.jp
Oikawa
Hirobumi
H
Yoshioka
Kunihiro
K
Tamakawa
Yoshiharu
Y
Konno
Hiromu
H
Ogawa
Akira
A
D000368:Aged; D000369:Aged, 80 and over; D016893:Carotid Stenosis / Q000175:diagnosis*; D003287:Contrast Media; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D014711:Vertebral Artery
D003287:Contrast Media; D019786:Gadolinium DTPA