| 李武超,刘远成,杨艳,徐超,梁力嵩,田冲,曾宪春,王少彧,王荣品.自由呼吸StarVIBE序列用于采集胸部T1WI[J].中国医学影像技术,2020,36(6):923~927 |
| 自由呼吸StarVIBE序列用于采集胸部T1WI |
| Free-breathing Star volumetric interpolated breath-hold examination sequence for acquisition of chest T1WI |
| 投稿时间：2019-05-10 修订日期：2020-02-13 |
| DOI：10.13929/j.issn.1003-3289.2020.06.030 |
| 中文关键词: 胸部 磁共振成像 图像质量 |
| 英文关键词:thorax magnetic resonance imaging image quality |
| 基金项目:贵州省科技厅联合基金（黔科合LH字[2015]7115）、贵州省科技计划项目（黔科合基础[2016]1096）、贵州省人民医院博士基金（GZSYBS[2015]02号）、贵州省卫生健康委科学技术基金项目（gzwjkj2019-1-202）、贵州省人民医院青年基金（GZSYQN[2018]14）。 |
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| 中文摘要: |
| 目的 观察自由呼吸StarVIBE序列用于采集胸部T1WI的价值。方法 前瞻性收集37例CT提示胸部病变患者，根据能否配合屏气20 s分为无法屏气组（17例）及配合屏气组（20例），行StarVIBE序列及常规VIBE序列MR平扫及增强延迟期成像。以"5分法"评价两序列图像中病变清晰度、伪影、肺血管清晰度、纵隔结构清晰度及总体图像质量，并进行组间比较。结果 无法屏气组StarVIBE序列平扫及增强图像各项评分均高于常规VIBE序列（P均<0.05）。配合屏气组中，病变清晰度、肺血管清晰度评分在平扫StarVIBE序列图像中均低于常规VIBE序列（P均<0.05），但增强图像差异均无统计学意义（P均>0.05）；图像伪影及总体图像质量评分差异亦无统计学意义（P均>0.05），而纵隔清晰度评分在StarVIBE序列平扫及增强图像中均高于常规VIBE序列（P均<0.05）。结论 采集胸部T1WI时，对于能配合屏气者，自由呼吸StarVIBE序列可获得与常规VIBE序列相近的图像质量；而对于无法屏气者，自由呼吸StarVIBE序列可提供较好质量的图像。 |
| 英文摘要: |
| Objective To explore the application value of free-breathing Star volumetric interpolated breath-hold examination (StarVIBE) sequence for acquisition of chest T1WI. Methods Data of 37 patients with chest lesions detected with CT were collected. The patients were divided into unable-to-hold-breath group (n=17) and able-to-hold-breath group(n=20) according to whether they could hold breath for 20 s or not. Then all patients underwent plain and delayed phase enhanced StarVIBE sequence and conventional VIBE sequence MR examinations. Imaging qualities were evaluated using "5-point scale" in terms of lesion conspicuity, artifact, pulmonary vessels sharpness, mediastinal structures conspicuity and overall quality, and then were compared between sequences and groups, respectively. Results In unable-to-hold-breath group, the scores of StarVIBE sequence were higher than those of conventional VIBE sequence on both plain and enhanced images (all P<0.05). In able-to-hold-breath group, plain images of StarVIBE sequence had lower scores of lesion conspicuity and pulmonary vessels sharpness than those of conventional VIBE sequence (both P<0.05), while there was no significant difference of the above scores on enhanced images (all P>0.05), and the scores of artifact and the overall image quality were not statistically different between two sequences (all P>0.05). However, in able-to-hold-breath group, StarVIBE sequence demonstrated higher score of pulmonary vessels sharpness on both plain and enhanced images (P<0.05). Conclusion For acquisition of chest T1WI, using free-breathing StarVIBE sequence can achieve similar image quality to conventional VIBE sequence patients being able to breath-holding. For patients being unable to hold breath, relative good image quality could be obtained using free-breathing StarVIBE sequence. |
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