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相关概念视频

Computed Tomography01:10

Computed Tomography

4.6K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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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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Positron Emission Tomography01:29

Positron Emission Tomography

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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
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Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
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Updated: Jul 15, 2025

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
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Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers

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光子计数计算机断层扫描 - 应用程序

Ludovica Lofino1, Daniele Marin2

  • 1Duke University Medical Center, Durham, NC, USA.

Radiologic clinics of North America
|September 27, 2023
PubMed
概括
此摘要是机器生成的。

光子计数探测器CT (PCCT) 提供精确,以患者为中心的成像,增强了各种放射学子专业. 这种先进的技术有望提高图像分辨率和组织特征,同时简化工作流程.

关键词:
计算机断层扫描 (CT) 是一种计算机断层扫描.多能成像技术多能成像光子计数探测器CT CT

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科学领域:

  • 医学成像技术 医学成像技术
  • 放射学 放射学是一门学科.
  • 光子计数探测器计算机断层扫描 (PCCT)

背景情况:

  • 光子计数检测器CT (PCCT) 是一种新兴的成像技术,于2021年获得FDA批准.
  • 它引起了大量的科学兴趣,导致了许多最近的出版物.
  • 早期的幻影和体内实验研究表明PCCT在各种医学领域的潜力.

研究的目的:

  • 解释商用光子计数探测器CT系统的工作原理.
  • 为了区分PCCT与传统的能量集成探测器CT系统.
  • 根据当前的证据,系统地审查和介绍PCCT的临床应用.

主要方法:

  • 关于光子计数探测器CT技术的解释.
  • 与能量整合探测器CT进行比较.
  • 对临床应用的最新科学文献进行系统审查.

主要成果:

  • 在神经放射学,腹部成像等领域,PCCT显得有前途.
  • 有潜力对更大的患者进行成像,并提高图像分辨率.
  • 提供新的多能成像功能,用于详细的组织特征.

结论:

  • 光子计数探测器CT已准备好显著改变放射学中的几乎每一个子专业.
  • 应用范围从机会性选到小结构的高精度可视化.
  • 通过PCCT,通过潜在的更轻松的工作流程,促进了增强的信息获取.