Effectiveness of a breath-hold monitoring system in improving the reproducibility of different breath-hold positions in multiphasic CT imaging.

Journal Article (Journal Article)

This study tests whether the utilization of an electronic breath-hold monitoring device improves breath-hold reproducibility during computed tomographic (CT) scanning. Two cohorts of 40 patients underwent dual-phase abdominal CT scans, either with a breath-hold monitoring device or with the standard breath-holding technique. Two blinded readers measured the differences in diaphragmatic position between phases. There was no statistical difference in diaphragmatic position (P=.14) between the monitored (8.5±11.5 mm) and control (5.6±5.2 mm) cohorts. Ten percent of patients from the monitored cohort had greater than 20 mm of deviation, versus 0%-2.5% for the control cohort. Reproduction of breath-holding position remains challenging, even with a monitoring system.

Full Text

Duke Authors

Cited Authors

  • Grimm, LJ; Feuerlein, S; Bashir, M; Nelson, RC

Published Date

  • 2012

Published In

Volume / Issue

  • 36 / 6

Start / End Page

  • 754 - 757

PubMed ID

  • 23154005

Electronic International Standard Serial Number (EISSN)

  • 1873-4499

Digital Object Identifier (DOI)

  • 10.1016/j.clinimag.2012.01.040


  • eng

Conference Location

  • United States