A decrease in respiratory rate during MRI scanning was associated with a significant lowering of anxiety state compared to a stable respiratory rate (Cohen's d 2.13, p=0.012).
Observational (n=44)
No
Is there a relationship between anxiety levels and respiratory rate acquired by a fibre-optic sensor system in MRI patients?
Changes in respiratory rate monitored by fibre-optic sensors correlate with changes in anxiety levels during MRI scans.
Standardized Mean Difference: 2.13
Absolute Event Rate: -5.84% vs 0.27%
p-value: p=0.012
Abstract Magnetic resonance imaging (MRI) patients often experience anxiety-related respiratory disorders, including hyperventilation, but their respiratory indicators are not routinely monitored during scanning. Free from metal parts and immune to electromagnetic radiation, fibre-optic sensors have the potential to better control the patient’s condition by providing continuous non-invasive monitoring of the respiratory rate (RR). The study was purposed to assess the relationship between anxiety in MRI patients and their RR acquired by a fibre-optic sensor system. Forty-four subjects were involved in the study. The mean RR values recorded for 2 minutes immediately after the beginning and immediately before the end of the scanning were assessed relative to the State-Trait Anxiety Inventory (STAI) X-1 scores obtained immediately before and immediately after the scanning, respectively. A growth mixture model analysis was performed to statistically differentiate two groups of subjects according to the trends in repeated measures of RR. A significant lowering of the anxiety state was observed in the group characterised by a decrease in RR, whereas essentially no change in anxiety level was observed in the group with a stable RR. The t -test showed significant differences in changes in anxiety between these groups ( t (39) = −2.349, p = 0.012, Cohen’s d = 2.13).
Dziuda et al. (Wed,) conducted a observational in Anxiety during magnetic resonance imaging (MRI) (n=44). Decrease in respiratory rate during MRI vs. Stable respiratory rate was evaluated on Change in anxiety state (STAI X-1 score) (Cohen's d = 2.13, p=0.012). A decrease in respiratory rate during MRI scanning was associated with a significant lowering of anxiety state compared to a stable respiratory rate (Cohen's d 2.13, p=0.012).