| Publications [#269100] of G. Allan Johnson
Papers Published
- Gewalt, SL; Glover, GH; Hedlund, LW; Cofer, GP; MacFall, JR; Johnson, GA, MR microscopy of the rat lung using projection reconstruction.,
Magn Reson Med, vol. 29 no. 1
(January, 1993),
pp. 99-106, ISSN 0740-3194 [8419748], [doi]
(last updated on 2024/03/29)
Abstract: Projection reconstruction has been implemented with self-refocused selection pulses on a small bore, 2.0 T MR microscope, to allow imaging of lung parenchyma. Scan synchronous ventilation and cardiac gating have been integrated with the sequence to minimize motion artifacts. A systematic survey of the pulse sequence parameters has been undertaken in conjunction with the biological gating parameters to optimize resolution and signal-to-noise (SNR). The resulting projection images with effective echo time of < 300 microseconds allow definition of lung parenchyma with an SNR improvement of approximately 15 x over a more conventional 2DFT short echo gradient sequence.
|