探讨护士提前应用呼吸训练对肺部感染者在磁共振（MRI）检查中的应用成效。

选取2013年1月至2015年1月本院拟接受MRI检查的肺部感染者85例。随机将患者分为观察组和对照组，其中观察组43例，对照组42例；观察组患者中男性27例，女性16例，对照组患者中男性27例，女性15例。观察组平均年龄为（56.0±3.8）岁，对照组平均年龄为（56.4±3.3）岁。两组患者均根据病情需要给予基础护理和呼吸评估，观察组在此基础上，在MRI检查前120 min开始接受呼吸训练，比较两组患者MRI的图像质量及检查耗时。

两组患者均完成MRI检查，观察组患者MRI检查图像质量显著优于对照组（U = 3.85、P = 0.000）；观察组患者的图像合格率显著高于对照组（97.67% vs. 76.19%，χ² = 8.704、P = 0.003）。两组患者行MRI平扫，观察组患者耗时显著短于对照组（11.3±1.7 min vs. 14.2±2.2 min，t =-6.81、P = 0.002）。行动态增强扫描，观察组患者检查时长显著短于对照组（4.1±1.0 min vs. 4.1±1.0 min，t =-3.92、P = 0.005）。

呼吸训练能够提高患者行MRI检查时的配合度，从而减少由自主性运动引起的MRI图像伪影，提高成像质量，减少检查时间，对小病变的检出率以及临床诊断和鉴别诊断有实际意义。

To investigate the impact of respiratory training on patients with pulmonary infection who accepted magnetic resonance imaging (MRI) examination.

Total of 85 patients with pulmonary infection who accepted MRI examination during January 2013 to January 2015 were collected in this study. Patients were randomly assigned to observation group and control group. The two groups were given basic nursing and respiratory assessment, and the observation group underwent breathing training before the MRIs. The image quality of MRI and the period of the examination patients in two groups were compared.

All the patients fininshed MRI examination. The image quality of the observation group was significantly better than that in the control group (U = 3.85, P = 0.000). The imaging qualities of of the observation group were significantly higher than the control group (97.67% vs 76.19%; χ² = 8.704, P = 0.003). The period of MRI examination for the observation group was significantly shorter than the control group (11.3±1.7 min vs. 14.2±2.2 min; t =-6.81, P = 0.002). The period of dynamic enhanced scan for the observation group was significantly shorter than the control group (4.1±1.0 min vs. 4.1±1.0 min; t =-3.92, P = 0.005).

Respiratory training could shorten the MRI examination duration, improve the image quality and increase the lesion detection rate and accuracy of diagnosis.