相关实验视频

Updated: Jul 11, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
14:19

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space

Published on: February 1, 2016

定子断层扫描和核磁共振成像技术

G L Brownell, T F Budinger, P C Lauterbur

    Science (New York, N.Y.)
    |February 5, 1982
    PubMed
    概括

    非侵入性成像技术的进步,包括辐射断层扫描和MRI,使生物过程的定量测量能够用于医学研究和临床应用. 这些不断发展的技术为诊断和调查提供了新的可能性.

    更多相关视频

    Multi-Tracer Studies of Brain Oxygen and Glucose Metabolism Using a Time-of-Flight Positron Emission Tomography-Computed Tomography Scanner08:36

    Multi-Tracer Studies of Brain Oxygen and Glucose Metabolism Using a Time-of-Flight Positron Emission Tomography-Computed Tomography Scanner

    Published on: June 7, 2024

    Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules09:55

    Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules

    Published on: October 4, 2024

    相关概念视频

    Positron Emission Tomography01:29

    Positron Emission Tomography

    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 being...
    Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

    Imaging Studies II: Positron Emission Tomography and Scintigraphy

    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
    Brain Imaging01:14

    Brain Imaging

    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 Stimulation (TMS).
    Imaging Studies I: CT and MRI01:14

    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...
    Magnetic Resonance Imaging01:24

    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...
    Electron Microscope Tomography and Single-particle Reconstruction01:07

    Electron Microscope Tomography and Single-particle Reconstruction

    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...