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相关概念视频

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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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...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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...
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Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

119
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
229
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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Updated: Jul 1, 2025

Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
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查乳腺核磁共振试卷:说明,现行方案和新兴技术

Naziya Samreen1, Cecilia Mercado2, Laura Heacock2

  • 1New York University, Department of Radiology, Garden City, NY, USA.

Journal of breast imaging
|March 1, 2024
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概括

查乳腺MRI可以早期检测癌症. 本综述探讨了更快的MRI技术,如缩短,超快和扩散加权成像,以提高更多女性的效率和可访问性.

关键词:
乳房磁力共振成像缩短的乳房MRI图像.查核磁共振成像 (MRI) 检查超快的MRI是超快的

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科学领域:

  • 放射学 放射学是一门学科.
  • 在瘤学瘤学.
  • 医疗成像医学成像

背景情况:

  • 乳腺动态对比增强型MRI (DCE-MRI) 对乳腺癌检测非常敏感.
  • 目前的查MRI主要针对高风险患者,但可能有利于中等风险和乳房密集的女性.
  • 减少扫描和解释时间可以提高成本效益和可访问性.

研究的目的:

  • 审查当前的乳腺MRI查指示.
  • 为了检查标准的乳房DCE-MRI技术.
  • 探索替代的,节省时间的查MRI协议.

主要方法:

  • 对乳腺MRI查现有文献的综述.
  • 讨论标准乳腺DCE-MRI的讨论.
  • 探索缩短的乳房MRI (Ab-MRI),超快的MRI和扩散加权成像 (DWI).

主要成果:

  • Ab-MRI缩短了扫描时间,但缺乏运动信息.
  • 超快的MRI在对比测试后的第一分钟内捕获动态数据.
  • 非对比的DWI显示了检测乳腺癌隐藏癌症的潜力.

结论:

  • 替代乳腺MRI协议可以减少扫描和解释时间.
  • 这些进展可能会扩大MRI查的可访问性.
  • 优化的MRI技术对更广泛的乳腺癌查应用具有前途.