Premium
Phase‐offset multiplanar (POMP) volume imaging: A new technique
Author(s) -
Glover Gary H.
Publication year - 1991
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880010410
Subject(s) - offset (computer science) , magnetic resonance imaging , physics , optics , hadamard transform , nuclear magnetic resonance , excitation , phase (matter) , nuclear medicine , computer science , medicine , radiology , quantum mechanics , programming language
Phase‐offset multiplanar (POMP) imaging is a technique that excites several sections simultaneously for improved imaging efficiency. The centers of the reconstructed images from each of the POMP sections are offset from each other in the phase‐encoding direction by means of view‐dependent phase modulation of the radio‐frequency (RF) excitation pulses and are placed adjacent to each other in the reconstruction. With a suitable reconstruction matrix size, the images can be made nonoverlapping and stored separately. At constant imaging time, signal‐to‐noise ratio (S/N), and resolution, POMP imaging produces a factor In: Book of abstracts: Society of Magnetic Resonance in Medicine In: Book of abstracts: Society of Magnetic Resonance in Medicine N p more sections than a conventinal sequence but with a reduced field of view. Alternatively, imaging time may be invreased by the factor N p to retain the same field of view but with the expected S/N advantage. The average RF power deposited by the 90° composite RF pulse is greater by the factor N p , but the power for the 180° pulse is unchanged. The POMP method is discussed and compared with three‐dimensional and Hadamard techniques.