自适应图像接收线圈应用于仰卧位乳腺磁共振成像研究  

Application of adaptive image receiving coil in supine breast imaging:a preliminary study

作　　者：李华玲[1] 曹晓乐 柳秋风 LI Hua-ling;CAO Xiao-le;LIU Qiu-feng(Department of Radiology,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China)

机构地区：[1]华中科技大学同济医学院附属同济医院放射科,武汉430030

出　　处：《放射学实践》2024年第6期802-806,共5页Radiologic Practice

基　　金：湖北省卫生健康委2023-2024年度科研项目基金资助项目(WJ2023M012)。

摘　　要：目的:本文探讨了自适应图像接收(AIR)线圈在仰卧位乳腺磁共振成像的可行性。方法:纳入53例乳腺磁共振检查的患者作为研究对象,仰卧位检查时采用AIR线圈,与常规俯卧位乳腺线圈成像进行图像质量对比,包括图像信噪比(SNR)、对比噪声比(CNR)、对比度、图像伪影、清晰度和整体评分。同时,对不同体位图像病灶显示能力进行评估,对比不同体位图像病灶SNR、CNR、病灶边缘清晰度;并比较病灶的最大长径、病灶距乳头和胸骨中点的距离。结果:仰卧位T_(2)WI图像的对比度高于俯卧位(0.59±0.02 vs.0.54±0.01),DWI图像脂肪SNR高于俯卧位(12.08±2.95 vs.9.31±0.91,T_(2)WI图像病灶的SNR大于俯卧位(120.41±31.86 vs.34.25±4.60),且仰卧位病灶距离胸骨中点的距离大于俯卧位(113.99±2.03 vs.86.64±2.14),差异有统计学意义(P<0.05)。仰卧位图像在伪影、清晰度和整体评分与俯卧位无统计学差别。病灶边缘的显示两种体位无差别。结论:采用AIR线圈的仰卧位乳腺磁共振成像与常规俯卧位图像质量、病灶的评估效能大致相仿,值得推广。Objective:This paper discussed the feasibility and clinical value of adaptive image reception(AIR)coil in supine breast magnetic resonance imaging.Methods:A total of 53 patients who underwent MRI examination were included.AIR coil was used during supine MRI examination,and image quality was compared with that in prone position,including image signal-to-noise ratio(SNR),contrast-to-noise ratio(CNR),contrast ratio(CR),artifact,sharpness and overall score.The display ability of lesions was evaluated,and the SNR,CNR and edge definition of lesions in different body positions were compared.The maximum length diameter of the lesion and the distance between the lesion and the midpoint of the nipple and sternum were recorded and measured.Results:The CR of T_(2) images in supine position was higher than that in prone position(0.59±0.02 vs.0.54±0.01),and the SNR of fat in diffusion weighted image supine position was higher than that in prone position(12.08±2.95 vs.9.31±0.91).In T_(2) images,the signal-to-noise ratio of the lesion in supine position was higher than that in prone position(120.41±31.86 vs.34.25±4.60),and the distance from the lesion to the midpoint of the sternum in supine position was larger than that in prone position(113.99±2.03 vs.86.64±2.14),with statistical significance(P<0.05).There was no significant difference in artifacts,sharpness and overall score between supine and prone images.The edge definition of lesions showed no statistical difference between the two positions.Conclusion:This study verified the feasibility of AIR coil in supine breast MRI.The use of AIR coil result in the similar image quality between supine and prone position,which is worth for clinical use.

关 键 词：乳腺 磁共振成像 仰卧位 

分 类 号：R323.21[医药卫生—人体解剖和组织胚胎学] R445.2[医药卫生—基础医学] R336