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相关概念视频

Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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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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Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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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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Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Phase Contrast and Differential Interference Contrast Microscopy01:26

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Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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[一个旧问题的新解决方案:口服对比剂的当前发展]

Thomas Fork1,2, Ingvar Adnerhill3,4, Olof Böök4

  • 1Emeritus aus der Abteilung Radiologie, Universitätsklinikum Lund, Malmö, Schweden. thomas.fork@lumentab.com.

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概括

使用Lumentin®口服对比剂的新型CT技术提供了与MRI相似的细肠道详细成像. 这提高了CT扫描质量,并减少了诊断程序的患者等待时间.

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肠回路的划定 肠回路的划定计算机断层扫描 (Computer Tomography) 是一种计算机断层扫描.霍恩斯菲尔德的单位磁共振断层扫描是一种磁共振断层扫描.口肠道对比性 肠道对比性

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科学领域:

  • 放射学 放射学是一门学科.
  • 医疗成像医学成像
  • 胃肠病学 胃肠病学

背景情况:

  • 欧洲放射学协会支持MRI用于小肠成像,因为它具有更高的细节性.
  • 有限的MRI可用性导致患者等待小肠成像的时间很长.
  • 需要改进的CT技术来匹配MRI的诊断质量.

研究的目的:

  • 开发一种改进的CT技术,模仿MRI的T1序列.
  • 为了在CT扫描中获得增强的肠壁对比度和低/无信号光度.
  • 为了找到一个耐受良好的口服对比剂用于CT小肠成像.

主要方法:

  • 开发了一种稳定,口服的泡饮料 (Lumentin®),含有44%的空气含量.
  • 在健康志愿者,瘤病患者和克罗恩病患者的CT扫描中测试了Lumentin®.
  • 与克罗恩病患者的MRI发现相比,用Lumentin®对CT结果进行了比较.

主要成果:

  • 卢门丁 (Lumentin®) 在小肠中表现出优异的分布和光线扩张.
  • CT扫描显示粘膜对比度增强,并检测出病变的频率与MRI相同或更高.
  • 与传统的口服药物相比,Lumentin®的副作用较少且较轻.

结论:

  • 卢门丁 (Lumentin®) 显著改善了用于小肠成像的诊断CT图像质量.
  • 这种新型的光线HU-阴性对比剂增强了肠道粘膜的可视化.
  • 在MRI研究中,Lumentin®的有希望的初步结果表明进一步的临床研究.