Quirk M E, Letendre A J, Ciottone R A, Lingley J F
Department of Family and Community Medicine, University of Massachusetts Medical Center, Worcester 01655.
Radiology. 1989 Dec;173(3):759-62. doi: 10.1148/radiology.173.3.2682775.
The authors compared the effectiveness of three anxiety-reducing interventions for patients undergoing magnetic resonance imaging. Each of 50 subjects was randomly assigned to one of the interventions. Intervention 1 involved provision of information about the imager and nature of the examination. Intervention 2 included information and counseling. Intervention 3 included information and a 12-minute relaxation exercise. Anxiety levels were measured by means of a 20-item questionnaire before and after imaging. The latter provided a retrospective report of anxiety experienced during imaging. Patients in intervention group 3 showed significantly less increase in anxiety compared with those in groups 1 and 2. Overall, only patients who participated in intervention 1 showed a significant increase in anxiety during imaging. When anxiety levels experienced before and during the examination were compared, with the focus on each questionnaire item for each group, those in group 1 showed a significant increase in anxiety on eight of 20 items; those in group 2, three items; and those in group 3, none. Psychologic preparation that includes relaxation strategies is more effective than provision of information alone.
作者比较了三种针对接受磁共振成像检查患者的焦虑缓解干预措施的效果。50名受试者每人被随机分配到其中一种干预措施中。干预措施1包括提供有关成像仪和检查性质的信息。干预措施2包括信息和咨询。干预措施3包括信息和一次12分钟的放松练习。焦虑水平通过一份20项问卷在成像前后进行测量。后者提供了成像过程中所经历焦虑的回顾性报告。与第1组和第2组的患者相比，第3干预组的患者焦虑增加明显较少。总体而言，只有参与干预措施1的患者在成像过程中焦虑显著增加。当比较检查前和检查期间经历的焦虑水平时，聚焦于每组的每个问卷项目，第1组的20个项目中有8个项目焦虑显著增加；第2组有3个项目；第3组则没有。包括放松策略的心理准备比单纯提供信息更有效。
