Claustrophobia and the Magnetic Resonance Imaging Procedure Export

@article{citeulike:303055, abstract = {We examined fear induced by the magnetic resonance imaging (MRI) procedure in 80 adult patients who were undergoing the procedure for the first time. Participants completed self-report measures of claustrophobia, anxiety sensitivity, thoughts about the scan, and pain. Participants were assessed pre- and postscan, and at 1-month follow-up. Twenty-five percent of the participants experienced moderate to severe anx iety during the MRI scan. Prescan scores on the Claustrophobia Questionnaire (CLQ: Rachman and Taylor, 1993) significantly predicted participants'' distress during the scan; pain and anxiety sensitivity did not. Furthermore, CLQ scores discriminated between participants who reported panic during the scan and participants who did not report panic. A brief screening instrument consisting of six items from the 29-item CLQ is suggested. This brief screening instrument administered prior to the scan may help identify in advance those people who are most likely to experience claustrophobic fear and, in particular, those who panic during the MRI procedure.}, author = {Mcisaac, Heather K. and Thordarson, Dana S. and Shafran, Roz and Rachman, S. and Poole, Gary}, citeulike-article-id = {303055}, citeulike-linkout-0 = {http://www.metapress.com/content/TQ1430J46424TX62}, citeulike-linkout-1 = {http://dx.doi.org/10.1023/A:1018717016680}, comment = {"A large number of our participants (30\%) reported that their feelings of claustrophobia increased after the scan, and this reported increase was significantly associated with anxiety during the MRI scan. This is an empirical validation of the single-case findings reported by Fishbain and his colleagues (1988). The two patients in their article indicated they had no previous feelings of claustrophobic fear, yet following the MRI scan these patients reported difficulties with enclosed spaces, such as elevators and automobiles, suggesting the MRI scan may have iatrogenic effects. However, in contrast to subjective report of increased claustro-phobia after the MRI scan, we found no reliable increase in our participants' Claustrophobia questionnaire scores from pretest to follow-up. The somewhat contradictory nature of these findings suggests either that patient self-report of increased claustrophobia following MRI scans should be interpreted cautiously or that the Claustrophobia questionnaire is insensitive to this type of change." ---=note-separator=--- Subjective anxiety during the scan: mean = 2.04 SD = 1.03 N = 79 Scale: 0 = Not at all anxious 1 = Slightly anxious 2 = Moderately anxious 3 = Very anxious 4 = Extremely anxious ---=note-separator=--- 11 of 80 (13.8\%) reported that they experienced panic during the exam. 3 of these terminated the scan early. Why so much higher than the 1.5\% Avrahami found? ---=note-separator=--- Nothing really on sensitization/habituation. ---=note-separator=--- Conditioning datapoint: "Single-case reports in the literature suggest that some patients who experience high anxiety during the scan develop increased claustrophobia after the scan. In our study, 30\% of subjects reported on a single item ("To what extent has undergoing the MRI scan affected your feelings of claustrophobia?") that the MRI scan had increased their feelings of claustrophobia. Overall, 70\% of subjects reported that undergoing the MRI scan had not increased or created feelings of claustrophobia; 12.5\% reported that they felt slightly more claustrophobic, 10\% a moderate increase, and 7.5\% an extreme increase in claustrophobia. The subjective increase in claustrophobia reported at follow-up was significantly correlated with anxiety during the scan (r =.45, p =.004). In contrast to this rating of subjective increase in claustrophobia, we did not find a significant increase in CLQ scores from pretest (M=26.8) to follow-up (M=29.1) [ t(42) = ¯ 1.40, p<.17]."}, doi = {10.1023/A:1018717016680}, journal = {Journal of Behavioral Medicine}, keywords = {claustrophobia, clq, fear, fearstats, imaging, long-term, mri, neuroethicsnet, panic, pdfcopy, refusalstats, riskpaper}, month = {June}, number = {3}, pages = {255--268}, posted-at = {2005-08-24 22:58:05}, priority = {0}, title = {Claustrophobia and the Magnetic Resonance Imaging Procedure}, url = {http://dx.doi.org/10.1023/A:1018717016680}, volume = {21}, year = {1998} }

TY - JOUR ID - citeulike:303055 L3 - citeulike-article-id:303055 N2 - We examined fear induced by the magnetic resonance imaging (MRI) procedure in 80 adult patients who were undergoing the procedure for the first time. Participants completed self-report measures of claustrophobia, anxiety sensitivity, thoughts about the scan, and pain. Participants were assessed pre- and postscan, and at 1-month follow-up. Twenty-five percent of the participants experienced moderate to severe anx iety during the MRI scan. Prescan scores on the Claustrophobia Questionnaire (CLQ: Rachman and Taylor, 1993) significantly predicted participants'' distress during the scan; pain and anxiety sensitivity did not. Furthermore, CLQ scores discriminated between participants who reported panic during the scan and participants who did not report panic. A brief screening instrument consisting of six items from the 29-item CLQ is suggested. This brief screening instrument administered prior to the scan may help identify in advance those people who are most likely to experience claustrophobic fear and, in particular, those who panic during the MRI procedure. IS - 3 JF - Journal of Behavioral Medicine EP - 268 TI - Claustrophobia and the Magnetic Resonance Imaging Procedure VL - 21 SP - 255 KW - claustrophobia KW - clq KW - fear KW - fearstats KW - imaging KW - long-term KW - mri KW - neuroethicsnet KW - panic KW - pdfcopy KW - refusalstats KW - riskpaper N1 - "A large number of our participants (30%) reported that their feelings of claustrophobia increased after the scan, and this reported increase was significantly associated with anxiety during the MRI scan. This is an empirical validation of the single-case findings reported by Fishbain and his colleagues (1988). The two patients in their article indicated they had no previous feelings of claustrophobic fear, yet following the MRI scan these patients reported difficulties with enclosed spaces, such as elevators and automobiles, suggesting the MRI scan may have iatrogenic effects. However, in contrast to subjective report of increased claustro-phobia after the MRI scan, we found no reliable increase in our participants’ Claustrophobia questionnaire scores from pretest to follow-up. The somewhat contradictory nature of these findings suggests either that patient self-report of increased claustrophobia following MRI scans should be interpreted cautiously or that the Claustrophobia questionnaire is insensitive to this type of change." N1 - Subjective anxiety during the scan: mean = 2.04 SD = 1.03 N = 79 Scale: 0 = Not at all anxious 1 = Slightly anxious 2 = Moderately anxious 3 = Very anxious 4 = Extremely anxious N1 - 11 of 80 (13.8%) reported that they experienced panic during the exam. 3 of these terminated the scan early. Why so much higher than the 1.5% Avrahami found? N1 - Nothing really on sensitization/habituation. N1 - Conditioning datapoint: "Single-case reports in the literature suggest that some patients who experience high anxiety during the scan develop increased claustrophobia after the scan. In our study, 30% of subjects reported on a single item ("To what extent has undergoing the MRI scan affected your feelings of claustrophobia?") that the MRI scan had increased their feelings of claustrophobia. Overall, 70% of subjects reported that undergoing the MRI scan had not increased or created feelings of claustrophobia; 12.5% reported that they felt slightly more claustrophobic, 10% a moderate increase, and 7.5% an extreme increase in claustrophobia. The subjective increase in claustrophobia reported at follow-up was significantly correlated with anxiety during the scan (r =.45, p =.004). In contrast to this rating of subjective increase in claustrophobia, we did not find a significant increase in CLQ scores from pretest (M=26.8) to follow-up (M=29.1) [ t(42) = ¯ 1.40, p<.17]." AU - Mcisaac, Heather AU - Thordarson, Dana AU - Shafran, Roz AU - Rachman, S AU - Poole, Gary PY - 1998/06// UR - http://dx.doi.org/10.1023/A:1018717016680 ER -