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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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...
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 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...
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
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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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Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
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Multimodality imaging: an update on PET/CT technology.

Osama Mawlawi1, David W Townsend

  • 1Department of Imaging Physics, MD Anderson Cancer Center, Box 1352, Houston, TX 77030, USA. omawlawi@mdanderson.org

European Journal of Nuclear Medicine and Molecular Imaging
|December 24, 2008
PubMed
Summary
This summary is machine-generated.

Positron Emission Tomography/Computed Tomography (PET/CT) systems combine functional and structural imaging for oncology patients. This review covers their evolution, current applications, and future developments, including PET/MRI.

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Area of Science:

  • Medical Imaging
  • Nuclear Medicine
  • Radiology

Background:

  • PET/CT systems, introduced in 2001, integrate functional and structural imaging for disease assessment.
  • Short imaging times reduce patient anxiety and motion artifacts, enhancing diagnostic quality.
  • PET/CT has become the preferred imaging modality for oncology patients, replacing dedicated PET systems.

Purpose of the Study:

  • To review the historical evolution of PET/CT systems.
  • To document the current status and applications of PET/CT technology.

Main Methods:

  • Review of literature on PET/CT system development and clinical implementation.
  • Analysis of current instrumentation, clinical applications, and future trends.

Main Results:

  • Highlighting recent instrumentation advancements in PET/CT.
  • Describing common clinical uses: staging, treatment planning, and therapy response monitoring.
  • Discussing challenges and future directions, including enhanced sensitivity, resolution, and radiopharmaceuticals.

Conclusions:

  • PET/CT technology has significantly advanced, offering improved diagnostic capabilities in oncology.
  • Future developments focus on enhancing system performance and exploring novel applications.
  • The integration of PET/MRI represents the next frontier in hybrid imaging.