PURPOSE: The breath-holding capabilities of various groups of individuals were evaluated to develop protocols so that patients undergoing spiral computed tomography (CT), digital angiography, and breath-hold magnetic resonance imaging (MRI) can be studied successfully. METHODS: Twenty-five outpatients and 25 inpatients (all adults) were studied before undergoing body CT. Each subject was asked to hold his or her breath for as long as possible. Then each patient was asked to perform as many repetitive 12-second breath holds as possible. These data were correlated with demographic and historical information. RESULTS: The maximum breath-hold time for inpatients and those outpatients who were heavy smokers or had chronic obstructive pulmonary disease (COPD) or congestive heart failure (CHF) was 18 to 32 seconds (95% confidence interval) with a mean of 25 seconds. For all other outpatients, breath-hold time was 38 to 56 seconds (mean = 45 seconds). The 95% confidence interval for the number of 12-second breath holds for these two groups was 4 to 6 breath holds (mean = 4.9) and 6 to 7 breath holds (mean = 6.6), respectively. One inpatient could not hold his breath at all and three others were only able to hold their breath once for short periods. The sex and age of the patient had no significant effect on breath-holding performance. CONCLUSIONS: Breath-holding protocols must account for the diminished capabilities of most inpatients, and outpatients who are heavy smokers or have COPD or CHF. Most outpatients who are not heavy smokers or without COPD or CHF can achieve a single breath hold of 38 seconds, or up to six 12-second breath holds.
PURPOSE: The breath-holding capabilities of various groups of individuals were evaluated to develop protocols so that patients undergoing spiral computed tomography (CT), digital angiography, and breath-hold magnetic resonance imaging (MRI) can be studied successfully. METHODS: Twenty-five outpatients and 25 inpatients (all adults) were studied before undergoing body CT. Each subject was asked to hold his or her breath for as long as possible. Then each patient was asked to perform as many repetitive 12-second breath holds as possible. These data were correlated with demographic and historical information. RESULTS: The maximum breath-hold time for inpatients and those outpatients who were heavy smokers or had chronic obstructive pulmonary disease (COPD) or congestive heart failure (CHF) was 18 to 32 seconds (95% confidence interval) with a mean of 25 seconds. For all other outpatients, breath-hold time was 38 to 56 seconds (mean = 45 seconds). The 95% confidence interval for the number of 12-second breath holds for these two groups was 4 to 6 breath holds (mean = 4.9) and 6 to 7 breath holds (mean = 6.6), respectively. One inpatient could not hold his breath at all and three others were only able to hold their breath once for short periods. The sex and age of the patient had no significant effect on breath-holding performance. CONCLUSIONS: Breath-holding protocols must account for the diminished capabilities of most inpatients, and outpatients who are heavy smokers or have COPD or CHF. Most outpatients who are not heavy smokers or without COPD or CHF can achieve a single breath hold of 38 seconds, or up to six 12-second breath holds.
Authors: Utaroh Motosugi; Diego Hernando; Peter Bannas; James H Holmes; Kang Wang; Ann Shimakawa; Yuji Iwadate; Valentina Taviani; Jennifer L Rehm; Scott B Reeder Journal: J Magn Reson Imaging Date: 2015-04-01 Impact factor: 4.813
Authors: Abdul Haseeb Ahmed; Ruixi Zhou; Yang Yang; Prashant Nagpal; Michael Salerno; Mathews Jacob Journal: IEEE Trans Med Imaging Date: 2020-11-30 Impact factor: 10.048
Authors: Sébastien Roujol; Tamer A Basha; Mehmet Akçakaya; Murilo Foppa; Raymond H Chan; Kraig V Kissinger; Beth Goddu; Sophie Berg; Warren J Manning; Reza Nezafat Journal: Magn Reson Med Date: 2013-10-15 Impact factor: 4.668
Authors: Katharina Hellbach; Andrea Baehr; Fabio De Marco; Konstantin Willer; Lukas B Gromann; Julia Herzen; Michaela Dmochewitz; Sigrid Auweter; Alexander A Fingerle; Peter B Noël; Ernst J Rummeny; Andre Yaroshenko; Hanns-Ingo Maack; Thomas Pralow; Hendrik van der Heijden; Nataly Wieberneit; Roland Proksa; Thomas Koehler; Karsten Rindt; Tobias J Schroeter; Juergen Mohr; Fabian Bamberg; Birgit Ertl-Wagner; Franz Pfeiffer; Maximilian F Reiser Journal: Sci Rep Date: 2018-02-08 Impact factor: 4.379
Authors: Bertram J Jobst; Mark O Wielpütz; Simon M F Triphan; Angela Anjorin; Julia Ley-Zaporozhan; Hans-Ulrich Kauczor; Jürgen Biederer; Sebastian Ley; Oliver Sedlaczek Journal: PLoS One Date: 2015-09-01 Impact factor: 3.240