A novel MR angiography technique: SPEED acquisition using half-Fourier RARE.
A novel MR angiography (MRA) method, swap phase encode extended data (SPEED), was developed. Two one-shot images with the phase-encode directions swapped were collected within a single breath-hold period and processed with a maximum intensity projection (MIP) to obtain an image. In this study, a long echo train two-dimensional rapid acquisition with relaxation enhancement (RARE) sequence with half-Fourier (half-RARE) was used to obtain the pulmonary MRA images. The MIP image obtained using the SPEED technique presented promising results for pulmonary vessels.
Miyazaki
M
M
MR Engineering Department, Toshiba Nasu Works, Otawara, Tochigi, Japan. miyazaki@mr.nasu.toshiba.co.jp
Ichinose
N
N
Sugiura
S
S
Kassai
Y
Y
Kanazawa
H
H
Machida
Y
Y
D005583:Fourier Analysis; D006801:Humans; D008168:Lung / Q000098:blood supply*; D018810:Magnetic Resonance Angiography / Q000379:methods*