[A simplified technic in high-resolution MR tomography of the shoulder: ZEPRA (Zoom of Eccentric Positioned Regions by active Aliasing)].
A fairly easy method for high-resolution MR imaging of the shoulder is described. The combination of a defined arrangement of the gradients with a small-volume Helmholtz coil provides the possibility of a high zoom of structures apart from the magnet's centre. The maximal achievable zoom factor depends on the ratio of FOV/sensitive coil volume. The ZEPRA method acts by phase-encoded aliasing only. With this technique all interesting soft tissue of the shoulder may readily be visualized in every direction and with every type of sequence.
Bongartz
G
G
Institut für Klin. Radiologie, Westfälische Wilhelms-Universität, Münster.
Requardt
H
H
Laub
G
G
Peters
P E
PE
D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D012782:Shoulder / Q000033:anatomy & histology*
Vereinfachte Technik bei der hochauflösenden MR-Tomographie der Schulter: ZEPRA.