Component fears of claustrophobia associated with mock magnetic resonance imaging

McGlynn, F. Dudley; Smitherman, Todd A.; Hammel, Jacinda C.; Lazarte, Alejandro A.

doi:10.1016/j.janxdis.2006.06.003

Cited by 25 publications

(21 citation statements)

References 28 publications

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“…There were positive associations between the total CLQ score and self-reported fear during situations in which both restriction and fear of suffocation were prominent, and between the restriction scale and subjective fear during situations with restriction only. The latter finding contrasts somehow with findings from McGlynn et al (2007) who reported that fear of restriction did not significantly contribute in path models of subjective fear during exposure to a mock scanner environment. Interestingly, scores on the restriction, but not those on the suffocation scale correlated significantly with self-reported fear during exposure to situations with risk of suffocation only.…”

Section: Discussioncontrasting

confidence: 99%

“…Finally, they showed that the CLQ predicts subjective fear, bodily sensations, and apprehensive cognitions during exposure to a small enclosed space. Also several other studies have confirmed the predictive validity of the CLQ (e.g., Harris, Robinson, & Menzies, 1999;McGlynn, Karg, & Lawyer, 2003;McGlynn, Smitherman, Hammel, & Lazarte, 2007;McIsaac, Thordarson, Shafran, Rachman, & Poole, 1998).…”

mentioning

confidence: 79%

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The Dutch Claustrophobia Questionnaire: Psychometric properties and predictive validity

Diest

Smits

Decremer

et al. 2010

Journal of Anxiety Disorders

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Fear of suffocation and fear of restriction are thought to underlie claustrophobia and can be assessed with the Claustrophobia Questionnaire (CLQ; Radomsky et al., 2001). A first study tested the psychometric properties of a Dutch version of the CLQ. Students (N=363) completed a Dutch translation of the CLQ and a set of other questionnaires assessing other specific fears, anxiety or depression. Results confirmed the two-factor structure and showed that the Dutch version of the CLQ has good psychometric properties. A second study tested the predictive validity of the Dutch CLQ. Participants (N=23) were exposed each to nine claustrophobic situations with elements of suffocation, restriction or both. The Dutch CLQ was found to be a significant predictor of fear and respiratory reactivity during claustrophobic exposure. It can be concluded that the Dutch version of the CLQ is a reliable and valid instrument to assess claustrophobic fear.

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Section: Discussioncontrasting

confidence: 99%

mentioning

confidence: 79%

The Dutch Claustrophobia Questionnaire: Psychometric properties and predictive validity

Diest

Smits

Decremer

et al. 2010

Journal of Anxiety Disorders

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“…Since scores were markedly below clinical cut-offs, these cannot be interpreted in terms of clinically relevant depressive symptoms. Other authors reported a predictive value of claustrophobic anxiety for subjective distress during the MRI or a mock assessment (McIsaac et al, 1998;McGlynn et al, 2003McGlynn et al, , 2007. We did not find such an association in the present sample.…”

Section: A Priori Identification Of Hormonal Responderscontrasting

confidence: 74%

The scanner as a stressor: Evidence from subjective and neuroendocrine stress parameters in the time course of a functional magnetic resonance imaging session

Muehlhan

Lueken

Wittchen

et al. 2011

International Journal of Psychophysiology

107

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Subjects participating in magnetic resonance imaging (MRI) examinations regularly report anxiety and stress related reactions. This may result in impaired data quality and premature termination of scans. Moreover, cognitive functions and neural substrates can be altered by stress. While prior studies investigated pre-post scan differences in stress reactions only, the present study provides an in-depth analysis of mood changes and hormonal fluctuations during the time course of a typical fMRI session. Thirty-nine subjects participated in the study. Subjective mood, salivary alpha-amylase (sAA) and cortisol were assessed at six time points during the lab visit. Associations between hormonal data and neural correlates of a visual detection task were observed using a region of interest approach applied to the thalamic region. Mood and hormonal levels changed significantly during the experiment. Subjects were most nervous immediately after entering the scanner. SAA was significantly elevated after MRI preparation. A subgroup of n=5 (12.8%) subjects showed pronounced cortisol responses exceeding 2.5 nmol/l. Preliminary fMRI data revealed an association between sAA levels and left thalamic activity during the first half of the experiment that disappeared during the second half. No significant correlation between cortisol and thalamic activity was observed. Results indicate that an fMRI experiment may elicit subjective and neuroendocrine stress reactions that can influence functional activation patterns.

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“…The need to monitor basic vital functions and relate these measurements to the patient's emotional state during an MRI examination has been noted by many researchers, 190 who have further stressed that claustrophobia symptoms should be detected as early as possible. 191 New heart rate variability techniques based on the ECG signal make it possible to assess the activity of the autonomic nerve system in an accurate and reliable manner.…”

Section: Discussionmentioning

confidence: 99%

Fiber-optic sensors for monitoring patient physiological parameters: a review of applicable technologies and relevance to use during magnetic resonance imaging procedures

Dziuda

2015

J. Biomed. Opt.

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Abstract. The issues involved with recording vital functions in the magnetic resonance imaging (MRI) environment using fiber-optic sensors are considered in this paper. Basic physiological parameters, such as respiration and heart rate, are fundamental for predicting the risk of anxiety, panic, and claustrophobic episodes in patients undergoing MRI examinations. Electronic transducers are generally hazardous to the patient and are prone to erroneous operation in heavily electromagnetically penetrated MRI environments; however, nonmetallic fiberoptic sensors are inherently immune to electromagnetic effects and will be crucial for acquiring the abovementioned physiological parameters. Forty-seven MRI-tested or potentially MRI-compatible sensors have appeared in the literature over the last 20 years. The author classifies these sensors into several categories and subcategories, depending on the sensing element placement, method of application, and measurand type. The author includes five in-house-designed fiber Bragg grating based sensors and shares experience in acquiring physiological measurements during MRI scans. This paper aims to systematize the knowledge of fiber-optic techniques for recording life functions and to indicate the current directions of development in this area.

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Component fears of claustrophobia associated with mock magnetic resonance imaging

Cited by 25 publications

References 28 publications

The Dutch Claustrophobia Questionnaire: Psychometric properties and predictive validity

The Dutch Claustrophobia Questionnaire: Psychometric properties and predictive validity

The scanner as a stressor: Evidence from subjective and neuroendocrine stress parameters in the time course of a functional magnetic resonance imaging session

Fiber-optic sensors for monitoring patient physiological parameters: a review of applicable technologies and relevance to use during magnetic resonance imaging procedures

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