相关实验视频

Updated: Jun 13, 2025

Protocol for the Evaluation of MRI Artifacts Caused by Metal Implants to Assess the Suitability of Implants and the Vulnerability of Pulse Sequences

Protocol for the Evaluation of MRI Artifacts Caused by Metal Implants to Assess the Suitability of Implants and the Vulnerability of Pulse Sequences

Published on: May 17, 2018

在金属人工物减少技术后,耳植入物和听觉脑干植入物的MRI图像质量得到改善

Arianna Winchester¹, Justin Cottrell¹, Emily Kay-Rivest¹

¹Department of Otolaryngology-Head and Neck Surgery, New York University Grossman School of Medicine, New York, New York.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

|May 1, 2025

概括

金属人工物减小 (MAR) 技术显著提高了患者的MRI图像质量与耳植入物 (CI) 或听觉脑干植入物 (ABI). 这些MAR技术改善了大多数大脑结构的可视化,提供了更好的诊断洞察力.

科学领域:

放射学和成像科学放射学和成像科学
生物医学工程生物医学工程
神经科学是一个神经科学.

背景情况:

磁共振成像 (MRI) 对于评估带有听觉植入物的患者至关重要.
耳植入物 (CI) 和听觉脑干植入物 (ABI) 的金属文物可以降低MRI图像质量.
金属工件减少 (MAR) 技术正在开发中,以减轻这些成像挑战.

研究的目的:

评估MAR技术在改善CI或ABI患者的MRI图像质量的有效性.
评估MAR对在有听力植入物的情况下可视化内结构的影响.

主要方法:

从前和后进行MAR应用之前和之后进行成像的CI或ABI患者的MRI扫描的回顾性审查.
分析T1和T2加权序列,包括TSE和FLAIR,用于图像质量评估.
通过两个神经放射学家对14个内结构的定量和定性评估,使用利克特尺度.

主要成果:

在MAR后的MRI扫描中,MAR技术显著改善了大多数内结构的可见性.
特定的结构,如半圆形通道,脑干和小脑脚,显示出可见的可视化改善.
虽然CIs和ABI都受益,但与ABI相比,CIs的改善更为明显.

结论:

对于MRI兼容的听觉植入物患者,MAR技术有效提高MRI图像质量.
应用MAR可以通过改善关键神经解剖结构的可视化来提高诊断准确性.
对于耳植入物来说,MAR的好处可能比听觉脑干植入物更为显著.

关键词:

减少人工制造物的减少.耳植入物可以使用耳植入物.核磁共振成像 (MRI) 的成像方法

更多相关视频

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion

Published on: January 17, 2025

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

相关概念视频

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

Imaging Studies I: CT and MRI

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...