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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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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

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

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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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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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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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Updated: Oct 29, 2025

Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer
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Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer

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PET/Computed Tomography in Thyroid Cancer.

Divya Yadav1, Komal Shah2, Kylan Naidoo3

  • 1Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, FCT 16.6014, Unit 1483, Houston, TX 77030, USA.

Neuroimaging Clinics of North America
|July 10, 2021
PubMed
Summary
This summary is machine-generated.

Differentiated thyroid cancer cells lose radioiodine uptake, making imaging difficult. Positron Emission Tomography (PET) offers valuable insights for aggressive thyroid cancers when radioiodine scintigraphy is insufficient.

Keywords:
(18)F FDG-PET/CTATCDTCMTCPETThyroid cancer

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Area of Science:

  • Oncology
  • Nuclear Medicine
  • Radiology

Background:

  • Thyroid cancers exhibit varied biological behaviors based on histology.
  • Differentiated thyroid cancer cells can lose radioiodine avidity, complicating diagnosis and treatment monitoring.
  • Aggressive, poorly differentiated, and dedifferentiated thyroid tumors present significant clinical challenges.

Purpose of the Study:

  • To review the current guidelines for Positron Emission Tomography (PET) imaging in thyroid cancer.
  • To explore the future prospects of PET imaging in managing challenging thyroid cancer cases.
  • To highlight PET's role in providing additive information beyond conventional imaging.

Main Methods:

  • Review of current literature and clinical guidelines on PET imaging in thyroid cancer.
  • Analysis of PET's utility in scenarios where radioiodine scintigraphy is limited.
  • Discussion of various PET tracers and their applications in thyroid cancer.

Main Results:

  • PET imaging provides crucial diagnostic and prognostic information in aggressive thyroid cancers.
  • PET can detect radioiodine-refractory disease, guiding treatment decisions.
  • Comparative studies show PET's potential to improve staging and recurrence detection.

Conclusions:

  • PET imaging is an indispensable tool for evaluating patients with differentiated thyroid cancer, especially those with dedifferentiated or aggressive features.
  • Integrating PET into the diagnostic and management algorithm enhances the care of thyroid cancer patients.
  • Continued research into novel PET tracers promises further advancements in thyroid cancer imaging.