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Related Concept Videos

Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan

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...
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...
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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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Related Experiment Video

Updated: Jun 25, 2026

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
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Cardiovascular drug development using radiopharmaceuticals.

Heikki Ukkonen1, Keiichiro Yoshinaga, Jean N DaSilva

  • 1Department of Medicine, Turku University Hospital, Turku, Finland.

Current Pharmaceutical Design
|March 12, 2009
PubMed
Summary

Radiopharmaceuticals enable noninvasive study of cardiovascular drug effects, aiding early clinical trials and patient-specific therapy selection. Molecular imaging also evaluates novel gene, device, and cell therapies.

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Area of Science:

  • Cardiovascular medicine
  • Radiopharmaceutical science
  • Molecular imaging

Background:

  • Radiopharmaceuticals offer noninvasive methods to assess cardiovascular functions relevant to drug development.
  • These include cardiac perfusion, metabolism, neural activity, and inflammation, crucial for understanding drug efficacy.
  • Current drug development benefits from studying these surrogate endpoints in early-phase clinical trials.

Purpose of the Study:

  • To highlight the utility of radiopharmaceuticals in cardiovascular drug development.
  • To explore their role in evaluating novel therapeutic strategies like gene, device, and cell therapies.
  • To emphasize the potential of molecular imaging in patient selection and therapy monitoring.

Main Methods:

  • Utilizing radiopharmaceuticals for noninvasive assessment of cardiac perfusion, metabolism, and molecular processes.
  • Applying molecular imaging techniques to evaluate drug effects in vivo.
  • Integrating advanced imaging with emerging therapies such as gene, device, and cell-based treatments.

Main Results:

  • Radiopharmaceuticals provide unique insights into drug effects on cardiovascular systems.
  • These methods facilitate in vivo hypothesis testing in early clinical studies (Phase I/II).
  • Molecular imaging aids in selecting patient populations and monitoring therapeutic responses.

Conclusions:

  • Radiopharmaceuticals are valuable tools for cardiovascular drug development, offering surrogate endpoints for early trials.
  • Molecular imaging enhances the evaluation of novel cardiovascular therapies, including gene, device, and cell therapies.
  • These approaches support personalized medicine by enabling tailored drug selection and monitoring.