田冲,明星,刘远成,王荣品,曾宪春.无线整合型MR放大器用于颞下颌关节高分辨MR成像[J].中国医学影像技术,2020,36(7):1075~1079 |
无线整合型MR放大器用于颞下颌关节高分辨MR成像 |
Wireless amplified nuclear MR detector in high-resolution MR imaging of temporomandibular joint |
投稿时间:2019-07-01 修订日期:2020-03-08 |
DOI:10.13929/j.issn.1003-3289.2020.07.034 |
中文关键词: 颞下颌关节 质量控制 磁共振成像 无线整合型MR放大器 |
英文关键词:temporomandibular joint quality control magnetic resonance imaging wireless amplified nuclear MR detector |
基金项目:国家自然科学基金培育项目(黔科合平台人才[2017]5724-11)。 |
作者 | 单位 | E-mail | 田冲 | 贵州省人民医院影像科, 贵州 贵阳 550002 贵州省智能医学影像分析与精准诊断重点实验室, 贵州 贵阳 550002 精准影像诊疗示范型国际科技合作基地, 贵州 贵阳 550002 | | 明星 | 贵州省人民医院影像科, 贵州 贵阳 550002 贵州省智能医学影像分析与精准诊断重点实验室, 贵州 贵阳 550002 精准影像诊疗示范型国际科技合作基地, 贵州 贵阳 550002 | | 刘远成 | 贵州省人民医院影像科, 贵州 贵阳 550002 贵州省智能医学影像分析与精准诊断重点实验室, 贵州 贵阳 550002 精准影像诊疗示范型国际科技合作基地, 贵州 贵阳 550002 | | 王荣品 | 贵州省人民医院影像科, 贵州 贵阳 550002 贵州省智能医学影像分析与精准诊断重点实验室, 贵州 贵阳 550002 精准影像诊疗示范型国际科技合作基地, 贵州 贵阳 550002 | | 曾宪春 | 贵州省人民医院影像科, 贵州 贵阳 550002 贵州省智能医学影像分析与精准诊断重点实验室, 贵州 贵阳 550002 精准影像诊疗示范型国际科技合作基地, 贵州 贵阳 550002 | zengxianchun04@foxmail.com |
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中文摘要: |
目的 观察以无线整合型MR放大器(WAND)耦合头颈联合线圈行颞下颌关节(TMJ)高分辨成像的价值。方法 采用头颈联合线圈、WAND耦合头颈联合线圈分别对16名健康青年人行双侧TMJ扫描。观察2组图像TMJ关节盘前带、中间带、后带、前附着、后附着及双板区、关节腔及髁突骨质,对图像质量进行主观评分,评估图像信噪比(SNR)和对比噪声比(CNR),并进行组间比较。结果 共纳入15名受试者。相比单纯头颈联合线圈,WAND耦合头颈联合线圈显示TMJ关节盘前带、中间带、后带、前附着、后附着及双板区、关节腔及髁突骨质更佳(P均<0.05),图像中TMJ关节盘及盘后组织的CNR、SNR显著升高(P均<0.05)。结论 采用WAND耦合头颈联合线圈可提高MRI显示TMJ质量。 |
英文摘要: |
Objective To observe the application value of wireless amplified nuclear MR detector (WAND) in high-resolution MR imaging of temporomandibular joint (TMJ). Methods Totally 16 healthy youths underwent bilateral TMJ MR scanning using head-neck combined coil and WAND coupled head-neck combined coil respectively. The anterior band, intermediate band, posterior band, anterior attachment, posterior attachment and double plate area, articular cavity, condylar bone of TMJ on the images obtained with 2 methods were observed and subjectively evaluated. The image quality of the articular disc, whose signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were evaluated for objective evaluation. The subjective scoring and objective evaluation were compared between 2 groups. Results A total of 15 subjects were included. Compared with images obtained with head-neck combined coil, images obtained with WAND coupled head-neck combined coil had obvious advantages in displaying the disc of anterior, middle and posterior, anterior attachment, posterior attachment, double-plate area and joint cavity and condyle bone of TMJ (all P<0.05), also had significantly higher CNR and SNR of the articular disc and posterior tissue of TMJ (both P<0.05). Conclusion WAND coupled head-neck combined coil can improve MR image quality of TMJ. |
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