Multiple breath-hold averaging (MBA) method for increased SNR in abdominal MRI.


Journal Article

Breath-holding during MR imaging eliminates respiratory motion artifacts but places a major time constraint on data acquisition. This constraint limits image signal-to-noise ratio and hence spatial resolution. A new method, multiple breath-hold averaging, is presented that overcomes these time limitations. Several images are acquired in sequential breath-hold periods, separated by periods of normal breathing, and averaged. This averaged image shows the expected increase in SNR with surprisingly little blurring due to misregistration. SNR improvements can be traded for increased spatial resolution. The MBA methodology can also be applied to 3D data acquisitions, dynamic contrast acquisitions, and image subtractions.

Full Text

Cited Authors

  • Feinberg, DA; Rofsky, NM; Johnson, G

Published Date

  • December 1995

Published In

Volume / Issue

  • 34 / 6

Start / End Page

  • 905 - 909

PubMed ID

  • 8598819

Pubmed Central ID

  • 8598819

Electronic International Standard Serial Number (EISSN)

  • 1522-2594

International Standard Serial Number (ISSN)

  • 0740-3194

Digital Object Identifier (DOI)

  • 10.1002/mrm.1910340617


  • eng