| 李武超,刘远成,杨艳,徐超,梁力嵩,田 冲,曾宪春,王少彧,王荣品.胸部T1WI成像自由呼吸StarVIBE序列与常规VIBE序列图像质量对比研究[J].中国医学影像技术,2020,36(6): |
| 胸部T1WI成像自由呼吸StarVIBE序列与常规VIBE序列图像质量对比研究 |
| Comparative study of image quality between free-breathing StarVIBE and conventional VIBE in chest T1WI |
| 投稿时间：2019-05-10 修订日期：2020-06-15 |
| DOI： |
| 中文关键词: 胸部 磁共振成像 屏气 |
| 英文关键词:Chest Magnetic resonance imaging Breath holding |
| 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）、贵州省科技厅（GZSYQCC[2015]001）、贵州省人民医院青年基金（QZSYQN[2015]01） |
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| 中文摘要: |
| 目的 对比分析StarVIBE序列自由呼吸扫描与常规三维容积内插屏气检查（VIBE）序列屏气扫描的图像质量，探讨自由呼吸StarVIBE序列在胸部MR成像中的临床价值。方法 前瞻性收集CT检查提示胸部病变的患者37例，根据患者能否配合屏气20 s，分为无法屏气组17例及配合屏气组20例，所有患者均在平扫及增强延迟期行StarVIBE序列及常规VIBE序列成像。两名影像医师采用“5分法”对两序列图像的病变清晰度、伪影、肺血管清晰度、纵膈结构清晰度及总体图像质量进行盲法评分，并比较两序列间图像质量评分差异。结果 无法屏气组，StarVIBE序列平扫及增强图像的各项评分均高于常规VIBE序列（P均＜0.05）。配合屏气组，StarVIBE序列平扫图像的病灶清晰度、肺血管清晰度评分低于常规VIBE序列（P均＜0.05），但增强后以上评分无统计学差异（P均＞0.05），同时两序列图像的伪影及图像总体质量评分亦无统计学差异（P均＞0.05），而在纵膈清晰度评分中StarVIBE序列增强前后均具有更高的评分（P＜0.05）。结论 在胸部T1WI中，对能配合屏气患者，自由呼吸StarVIBE序列可获得与常规VIBE序列相近的图像质量；而对无法屏气患者，自由呼吸StarVIBE序列可提供更好的图像质量。 |
| 英文摘要: |
| Objective To compare the image quality of StarVIBE sequence with free-breathing scanning and VIBE sequence with breath-hold scanning and to explore the clinical value of free-breathing StarVIBE sequence in chest MR imaging. Methods In this study, we prospectively collected the data of 37 patients with chest lesions detected by CT, who wereAccording to whether the patients can cooperate with breath holding for 20 s, 37 patients with chest lesions detected by CT were prospectively collected in this study and divided into an unable-to-hold-breath group (17) and an able-to-hold-breath group (20) according to whether they can hold a breath for 20 s. 17 cases of unable to hold breath group and 20 cases of able to hold breath group. All patients underwent StarVIBE sequence and conventional VIBE sequence during nonenhanced and enhanced delayed phases respectively. Two radiologists used the "5-point scale" to blindly score the sequencesthe’ image qualitiesy of both sequences, includingin terms of lesion conspicuity, artifact, pulmonary vessels sharpness, mediastinal structures conspicuity, and overall image quality. The scores of image quality between these two sequences were compared. Results In the unable- to- hold- breath group, the scores of StarVIBE sequence were higher than the conventional VIBE sequence whether in both the nonenhanced and enhanced images（P＜0.05）. In the able -to- hold- breath group, the StarVIBE sequence had lower the lesion conspicuity and pulmonary vessels sharpness scores of the StarVIBE sequence were lower than the conventional VIBE sequence images in the nonenhanced images (P＜<0.05), while there was no significant difference in the above scores in the enhanced images (P＞>0.05). Meanwhile, tThe scores of artifact and the overall image quality between the two sequences were also not statistically different (P＞>0.05). However, the StarVIBE sequence demonstrated a higher score in the pulmonary vessels sharpness scorethe pulmonary vessels sharpness of the StarVIBE sequence was with higher score in both the nonenhanced and enhanced images（P＜0.05）. Conclusion For chest T1WI, the free-breathing StarVIBE sequence can achieve similar image quality to conventional VIBE sequence in patients with breath-holding. For patients who are unable to hold breath, the free-breathing StarVIBE sequence provides better image quality. |
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