A study of the effects of patient anxiety, perceptions and equipment on motion artifacts in magnetic resonance imaging. Export

@article{citeulike:267346, abstract = {We investigated to see if motion artifacts (MA) occurring in magnetic resonance imaging (MRI) are related to prescan anxiety measures and test the feasibility of identifying patients at risk for the development of MA before scanning. Furthermore, to determine a possible influence of constructional differences between a 1.5 and a 0.5 tesla scanner on the frequency of MA. Two hundred and ninety-seven first time MRI patients were surveyed before and after imaging with anxiety and attitude questionnaires. Frequency and impact on diagnostic quality of MA were documented. 12.8\% of all scans showed MA not related to normal body pulsations. In 6.4\% the diagnostic quality was impaired. Constructional differences did not influence the frequency of MA. Also, anxiety as determined with the most common anxiety measuring instrument was not related to the development of MA. Concern about the technical apparatus identified 70.6\% of all individuals developing MA. Patients at risk for the development of MA can be identified prior to scanning. It seems necessary to further develop reliable methods to detect them and to evaluate strategies to prevent MA.}, address = {Department of Psychiatry, University of Vienna, Austria.}, author = {Dantendorfer, K. and Amering, M. and Bankier, A. and Helbich, T. and Prayer, D. and Youssefzadeh, S. and Alexandrowicz, R. and Imhof, H. and Katschnig, H.}, citeulike-article-id = {267346}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/9201677}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=9201677}, citeulike-linkout-2 = {http://dx.doi.org/10.1016/S0730-725X(96)00385-2}, comment = {Used STAI and two custom made assessments. Mean anxiety decreased post-scan, as usual, see Table 2. Combined (men + women) pre-scan STAI mean: 42.73 Combined (men + women) post-scan STAI mean: 36.26 SDs are provided, but only separately for men and women. They ranged from 9 to 12, approximately ---=note-separator=--- Two scans (0.7\% of 297; 1 female; 1.5 Tesla scanner/ 1 male; 0.5 Tesla) had to be terminated and could not be conducted further due to claustrophic reactions. (p. 304) ---=note-separator=--- They also delivered brief, custom-made "imaging distress questionnaires." Questions were retrospective. 86\% rated the scan as easy to tolerate, 14.2\% as moderately unpleasant, and 1.2\% as hardly bearable. ---=note-separator=--- Nothing relevant to sensitization/habituation.}, doi = {10.1016/S0730-725X(96)00385-2}, issn = {0730-725X}, journal = {Magn Reson Imaging}, keywords = {fear, fearstats, motion, mri, neuroethicsnet, refusalstats, riskpaper, stai}, number = {3}, pages = {301--306}, posted-at = {2005-07-28 17:18:45}, priority = {0}, title = {A study of the effects of patient anxiety, perceptions and equipment on motion artifacts in magnetic resonance imaging.}, url = {http://dx.doi.org/10.1016/S0730-725X(96)00385-2}, volume = {15}, year = {1997} }

TY - JOUR ID - citeulike:267346 L3 - citeulike-article-id:267346 N2 - We investigated to see if motion artifacts (MA) occurring in magnetic resonance imaging (MRI) are related to prescan anxiety measures and test the feasibility of identifying patients at risk for the development of MA before scanning. Furthermore, to determine a possible influence of constructional differences between a 1.5 and a 0.5 tesla scanner on the frequency of MA. Two hundred and ninety-seven first time MRI patients were surveyed before and after imaging with anxiety and attitude questionnaires. Frequency and impact on diagnostic quality of MA were documented. 12.8% of all scans showed MA not related to normal body pulsations. In 6.4% the diagnostic quality was impaired. Constructional differences did not influence the frequency of MA. Also, anxiety as determined with the most common anxiety measuring instrument was not related to the development of MA. Concern about the technical apparatus identified 70.6% of all individuals developing MA. Patients at risk for the development of MA can be identified prior to scanning. It seems necessary to further develop reliable methods to detect them and to evaluate strategies to prevent MA. IS - 3 JF - Magn Reson Imaging SN - 0730-725X AD - Department of Psychiatry, University of Vienna, Austria. EP - 306 TI - A study of the effects of patient anxiety, perceptions and equipment on motion artifacts in magnetic resonance imaging. VL - 15 SP - 301 KW - fear KW - fearstats KW - motion KW - mri KW - neuroethicsnet KW - refusalstats KW - riskpaper KW - stai N1 - Used STAI and two custom made assessments. Mean anxiety decreased post-scan, as usual, see Table 2. Combined (men + women) pre-scan STAI mean: 42.73 Combined (men + women) post-scan STAI mean: 36.26 SDs are provided, but only separately for men and women. They ranged from 9 to 12, approximately N1 - Two scans (0.7% of 297; 1 female; 1.5 Tesla scanner/ 1 male; 0.5 Tesla) had to be terminated and could not be conducted further due to claustrophic reactions. (p. 304) N1 - They also delivered brief, custom-made "imaging distress questionnaires." Questions were retrospective. 86% rated the scan as easy to tolerate, 14.2% as moderately unpleasant, and 1.2% as hardly bearable. N1 - Nothing relevant to sensitization/habituation. AU - Dantendorfer, K AU - Amering, M AU - Bankier, A AU - Helbich, T AU - Prayer, D AU - Youssefzadeh, S AU - Alexandrowicz, R AU - Imhof, H AU - Katschnig, H PY - 1997/// UR - http://dx.doi.org/10.1016/S0730-725X(96)00385-2 ER -