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Related Concept Videos

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
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...

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Future Challenges of Molecular Imaging in Oncology.

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Clinical Applications of Theranostics.

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Related Experiment Video

Updated: May 22, 2026

PET and MRI Guided Irradiation of a Glioblastoma Rat Model Using a Micro-irradiator
10:48

PET and MRI Guided Irradiation of a Glioblastoma Rat Model Using a Micro-irradiator

Published on: December 28, 2017

Molecular Imaging in Photon Radiotherapy.

Sonja Adebahr1, Jamina Tara Fennell1, Eleni Gkika2

  • 1Department of Radiation Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Recent Results in Cancer Research. Fortschritte Der Krebsforschung. Progres Dans Les Recherches Sur Le Cancer
|May 21, 2026
PubMed
Summary
This summary is machine-generated.

Molecular imaging, such as positron emission tomography (PET) and multiparametric MRI, enhances radiation therapy (RT) precision. This improves tumor staging and treatment planning for better cancer outcomes.

Keywords:
Biological imagingPETmpMRIRadiation oncology

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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

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Area of Science:

  • Oncology
  • Radiology
  • Medical Imaging

Background:

  • Cancer treatment increasingly relies on an interdisciplinary approach.
  • Radiation therapy (RT) is a cornerstone of cancer care, offering curative and palliative options.
  • Technological advancements, including intensity-modulated RT (IMRT), have significantly improved RT precision.

Purpose of the Study:

  • To provide an overview of molecular imaging applications in photon RT.
  • To highlight the role of advanced imaging in improving RT planning and monitoring.
  • To demonstrate these applications using examples from various cancers.

Main Methods:

  • Review of molecular imaging techniques, including PET and multiparametric MRI.
  • Focus on photon RT, the most common RT modality.
  • Case examples from brain tumors, head and neck, lung, esophageal, prostate, and uterine cancers.

Main Results:

  • Molecular imaging offers enhanced precision for defining tumor spread (GTV and CTV) compared to traditional methods.
  • PET and multiparametric MRI improve the accuracy of RT planning by providing detailed tumor information.
  • These techniques aid in both RT planning and treatment monitoring.

Conclusions:

  • Molecular imaging is crucial for optimizing radiation therapy precision.
  • Accurate tumor delineation through advanced imaging is essential for effective cancer treatment.
  • The integration of molecular imaging into RT planning promises improved patient outcomes across various cancer types.