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Related Concept Videos

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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.
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The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
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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.
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Intestinal Epithelial Regeneration in Response to Ionizing Irradiation
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Radiation in Gastroenterology.

Monjur Ahmed1, Razin Ahmed2

  • 1Division of Gastroenterology and Hepatology, Thomas Jefferson University, Philadelphia, PA 19107, USA.

Gastroenterology Research
|January 20, 2023
PubMed
Summary
This summary is machine-generated.

Radiation offers significant benefits in gastroenterology for imaging and cancer treatment. However, it poses risks of malignancy and other complications for patients and healthcare providers, necessitating protective measures.

Keywords:
Radiation colitisRadiation enteritisRadiation esophagitisRadiation gastritisRadiation proctitisUnits of radiationUse of radiation in gastroenterology

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Area of Science:

  • Gastroenterology
  • Radiation Oncology
  • Medical Imaging

Background:

  • Radiation is integral to modern gastroenterology, utilized in diagnostic imaging, interventional procedures, and cancer therapy.
  • Radiotherapy employs various modalities to treat gastrointestinal malignancies by damaging cellular components.

Purpose of the Study:

  • To review the benefits and risks of radiation in gastroenterology.
  • To discuss gastrointestinal complications from radiation therapy and exposure risks for patients and healthcare providers.

Main Methods:

  • Review of current literature on radiation use in gastroenterology.
  • Discussion of radiotherapy mechanisms, delivery methods, and potential adverse effects.

Main Results:

  • Radiation therapy effectively treats gastrointestinal cancers through direct and indirect cellular damage.
  • Potential adverse effects include inflammation, fibrosis, organ dysfunction, and secondary malignancies.
  • Healthcare providers using fluoroscopy face increased risks of malignancy and cataracts.

Conclusions:

  • While radiation is crucial in gastroenterology, its risks necessitate adherence to radiological protection guidelines.
  • Minimizing exposure is essential for both patients undergoing procedures and healthcare professionals.