分子影像学杂志2023，Vol.46Issue(6)：1015-1020,6.DOI:10.12122/j.issn.1674-4500.2023.06.10
超短回波时间和星状容积内插自由呼吸序列在肺结节检出中的对比研究
Comparison of free breathing ultrashort echo time and star volume interpolation se-quence in pulmonary nodules
摘要
Abstract
Objective To compare the image quality and the ability of showing nodules and morphology of lung nodules in MRI free breathing sequence:star volumetric interpolated breath-hold examination(star VIBE)sequence and spiral ultrashort echo time sequence(spiral UTE).Methods Patients with pulmonary nodules detected by chest CT and examined by chest MRI from November 2019 to September 2022 were collected.The interval between CT and MRI was 48 h.MRI examination was performed with star VIBE sequence and spiral UTE sequence.Two radiologists used the 5-point method to independently evaluate the image quality of MRI sequences,and compared the detection rate of pulmonary nodules and the ability to display morphological signs.Results In terms of image quality evaluation,the vascular sharpness score of spiral UTE image was higher than that of star VIBE sequence(P<0.05),while the motion artifact score of star VIBE image was lower than that of spiral UTE image.In terms of nodule detection ability,the ground glass nodule detection rate of spiral UTE sequence was higher than that of star VIBE sequence(P<0.05),and the total detection rate of nodules in the middle and lower lobe was higher than that of star VIBE sequence(P<0.05).The detection rates of lobulation,burr,spinous process,vacuole and cavity in Spiral UTE sequence(90.90%,85.71%,88.88%,100%,100%)were higher than those in star VIBE sequence(86.36%,71.42%,77.77%,50%,83.33%),but the difference was not statistically significant(P>0.05).Conclusion Star VIBE sequence and spiral UTE sequence have their own advantages.Star VIBE sequence is not easily affected by respiration and cardiac movement.Spiral UTE sequence can better detect middle and lower lobe nodules,especially ground glass nodules,and spiral UTE sequence can better clarify pulmonary vessels.Therefore,star VIBE sequence scan is recommended for patients with large and irregular breathing,and spiral UTE sequence is recommended for patients with ground glass nodules and middle and lower lobe nodules.关键词
磁共振成像/超短回波时间/肺结节/star VIBE序列Key words
magnetic resonance imaging/ultrashort echo time/pulmonary nodules/star VIBE sequence引用本文复制引用
江叶海,张旭阳,蒲豆豆,党珊,任占丽,李鹏,王少彧,于楠..超短回波时间和星状容积内插自由呼吸序列在肺结节检出中的对比研究[J].分子影像学杂志,2023,46(6):1015-1020,6.基金项目
陕西省自然科学基础研究计划(2022JM-453) （2022JM-453）
国家级大学生创新创业训练计划(202210716013) （202210716013）
