国际口腔医学杂志

国际口腔医学杂志 ›› 2019, Vol. 46 ›› Issue (6): 693-698.doi: 10.7518/gjkq.2019100

• 综述 • 上一篇    下一篇

磁共振成像及其在牙体牙髓专业中的应用

刘彤曦,柯星,杨健()   

  1. 南昌大学附属口腔医院牙体牙髓病科 江西省口腔生物医学重点实验室 南昌 330006
  • 收稿日期:2019-03-22 修回日期:2019-07-19 出版日期:2019-11-01 发布日期:2019-11-14
  • 通讯作者: 杨健
  • 作者简介:刘彤曦,住院医师,硕士,Email： 774712961@qq.com

Applications and prospects on endodontics based on magnetic resonance imaging

Liu Tongxi,Ke Xing,Yang Jian()   

  1. The Key Laboratory of Oral Biomedicine of Jiangxi Province, Nanchang 330006, China
  • Received:2019-03-22 Revised:2019-07-19 Online:2019-11-01 Published:2019-11-14
  • Contact: Jian Yang

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摘要：

磁共振成像（MRI）作为一种非侵入性影像检查手段,除了应用于全身软组织疾病诊查外,同时在牙体牙髓的诊断、治疗和评估愈后中逐渐显示其优势。本文就近年来国内外对MRI在牙体牙髓专业中潜在应用及前景作一综述。

关键词: 磁共振成像, 牙体牙髓病学, 根管解剖

Abstract:

Magnetic resonance imaging (MRI), as a non-invasive imaging method, is not only applied to the diagnosis of whole-body soft tissue disease, but also gradually shows its advantages in the diagnosis, treatment and evaluation of the endodontics. This article introduces the potential applications and prospects of MRI in endodontics from reviewing local and international studies in recent years.

Key words: magnetic resonance imaging, endodontics, root canal anatomy

中图分类号: 

  • R781.05

表 1

部分文献采用的MRI技术参数和应用情况"

文献 线圈 主磁场/T 技术/序列 分辨率/μm3 扫描时间 具体应用 研究类型
Weiger等[29] - 11.7 ZTE 1132×144 27 min 清晰区分釉质、牙本质和髓腔 体外
H?vener等[30] 柔性表面线圈 3.0 TSE* 5602×900 11 min 仅能辨认根管、牙龈、骨密质 体内
收发两用正交鼠型线圈 7.0 UTE 187.53 17 min 区分釉质、牙骨质、牙髓 体外
低温收发两用正交线圈 9.4 ZTE 1533 22 min 区分釉质（更佳）、牙骨质、牙髓 体外
Idiyatullin等[22] 25 mm单环自制线圈 9.4 SWIFT 983~1563 100 s~24 min 辨认微裂隙、龋损范围,侧支根管 体外
40 mm颊齿间咬合线圈 4.0 SWIFT 4303 10 min 辨认牙体硬组织、牙髓、牙龈、银汞充 体内
填物
Bracher等[16] 2×2通道原型颈部线圈 3.0 TSE* 4002×1 000 5 min 32 s 发现牙体硬组织龋损,早期脱矿 体内
3.0 UTE 8003 7 min 49 s 发现牙体硬组织龋损（更佳）,早期脱矿 体内
Ludwig等[31] 口内特制无线线圈 3.0 三维快速小角度激发序列 2502×500 4 min 辨认牙体硬组织、牙龈、根管、骨松质、牙周膜、下牙槽神经 体内
Idiyatullin等[20] 50 mm单环线圈 4.0 SWIFT 2703 3.5 min 显示宽度20 μm的微裂隙 体外
Sedlacik等[12] 14+1线圈阵列 3.0 fsT2W# 5003 5 min 15 s 观察髓腔形态,评估根管炎症和牙髓活力 体内
3.0 weT1W& 3753 6 min 57 s 观察牙周膜、根尖孔、营养管 体内
Nasel等[17] 40 mm四接收无线频率线圈 7.04 True-FISP 752×117 - 三位重建显示第三磨牙外部轮廓和根管内部形态细节 体外
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