| 蔡晓红,黄玉雯,张卫林,曹礼庭,顾鹏,胡劲,周业琴.三维斑点追踪成像评价肿瘤患者胸部放射治疗后左心室收缩功能变化[J].中国医学影像技术,2016,32(10):1495~1498 |
| 三维斑点追踪成像评价肿瘤患者胸部放射治疗后左心室收缩功能变化 |
| Three-dimensional speckle tracking imaging in evaluation of left ventricular systolic function changes in tumor patients treated with thoracic radiotherapy |
| 投稿时间：2016-03-10 修订日期：2016-05-24 |
| DOI：10.13929/j.1003-3289.2016.10.006 |
| 中文关键词: 胸部肿瘤 心室功能,左 应变 三维斑点追踪 超声心动描记术 放射疗法 |
| 英文关键词:Thoracic neoplasms Ventricular function, left Strain Three-dimensional speckle tracking Echocardiography Radiotherapy |
| 基金项目:四川省南充市科技局基金（13A0025） |
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| 中文摘要: |
| 目的 探讨三维斑点追踪成像（3D-STI）评价胸部放射治疗前后左心室收缩功能变化的价值。方法 选取拟接受首次胸部放射治疗且照射野累及心脏的恶性肿瘤患者35例，分别于放射治疗前后行超声检查。采集连续6个心动周期的左心室三维全容积图像并储存，计算左心室舒张末期容积（LVEDV）、左心室收缩末期容积（LVESV）、左心室每搏输出量（LVSV）、左心室射血分数（LVEF）、左心室质量（LVMASS）、左心室整体面积收缩期峰值应变（GAS）、左心室整体圆周收缩期峰值应变（GCS）、左心室整体纵向收缩期峰值应变（GLS）及左心室整体径向收缩期峰值应变（GRS）；比较放射治疗前后上述指标的变化情况。结果 放射治疗前与治疗后LVEDV、LVESV、LVEF、LVSV及LVMASS差异均无统计学意义（P均<0.05）。放射治疗后GCS、GAS、GRS均较放射治疗前降低（P均<0.05），但GLS无明显改变（P>0.05）。结论 胸部肿瘤患者放射治疗后左心室GCS、GAS、GRS已发生改变，3D-STI可发现放射治疗后心脏早期损伤。 |
| 英文摘要: |
| Objective To explore the value of three-dimensional speckle tracking imaging (3D-STI) in evaluation of left ventricular systolic function changes in tumor patients treated with thoracic radiotherapy.Methods A total of 35 tumor patients planned to be treated with thoracic radiotherapy were enrolled in the study, and the heart was in the radiation field. All the patients underwent ultrasound examination before and after radiotherapy respectively. After collecting and storing up three-dimensional full volume images of left ventricle in 6 cardiac cycles, GE Echo-Pac 113 software was used to calculate left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV), left ventricular stroke volume (LVSV), left ventricular ejection fraction (LVEF), left ventricular mass (LVMASS), left ventricular global area peak systolic strain (GAS), left ventricular global circumferential peak systolic strain (GCS), left ventricular global longitudinal peak systolic strain (GLS) and left ventricular global radial peak systolic strain (GRS). All the indexes before and after radiotherapy were compared by statistic software.Results There were no significant differences in LVEDV, LVESV, LVEF, LVSV and LVMASS before and after radiotherapy (all P>0.05). GCS, GAS and GRS after radiotherapy all decreased than before radiotherapy (P<0.05), but GLS had no significant change (P>0.05).Conclusion Left ventricular GCS, GAS and GRS in thoracic tumor patients have changed after radiotherapy. 3D-STI can detect early cardiac injury after radiation therapy. |
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