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Positron Emission Tomography

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.
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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...

Cancer Therapies

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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Cancer Therapies

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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Related Experiment Video

Updated: Jun 11, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Published on: January 22, 2018

PET-CT in oncology.

N C Purandare¹, V Rangarajan

¹Bio-Imaging Unit, Tata Memorial Hospital, Dr. E Borges Road, Parel, Mumbai-400 012, Maharashtra, India.

Journal of Postgraduate Medicine

|July 13, 2010

Summary

18F-Flurodeoxyglucose Positron Emission Tomography (FDG PET) imaging is transforming cancer care. This review explores FDG PET principles and its key applications in oncology for diagnosis, staging, and surveillance.

Area of Science:

Oncology
Nuclear Medicine
Radiology

Background:

Diagnostic imaging is crucial for effective cancer management.
Recent advancements in imaging modalities have significantly improved cancer diagnosis and staging.
Molecular and metabolic imaging, particularly 18F-Flurodeoxyglucose Positron Emission Tomography (FDG PET), has revolutionized oncologic imaging.

Purpose of the Study:

To explain the fundamental principles of FDG PET imaging.
To review the clinical applications of FDG PET in oncology.
To highlight the impact of FDG PET on cancer diagnosis, staging, and surveillance.

Main Methods:

Review of principles of FDG PET imaging.
Discussion of clinical applications based on current literature.

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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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Focus on the role of FDG PET in cancer diagnosis, staging, and surveillance.

Main Results:

FDG PET provides valuable metabolic and molecular information for cancer management.
Evidence supporting FDG PET use is expanding with new indications.
FDG PET has demonstrably changed the approach to oncologic diagnosis, staging, and surveillance.

Conclusions:

FDG PET is a powerful tool in modern oncology.
Understanding its principles is key to maximizing its clinical utility.
Continued research will likely uncover further applications of FDG PET in cancer care.