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Related Concept Videos

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...
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...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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

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Related Experiment Video

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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

Published on: December 16, 2022

Clinical myocardial perfusion PET/CT.

Marcelo F Di Carli1, Sharmila Dorbala, Jolene Meserve

  • 1Division of Nuclear Medicine/PET, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. mdicarli@partners.org

Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
|May 4, 2007
PubMed
Summary

Cardiac PET imaging offers superior accuracy for diagnosing coronary artery disease (CAD), especially in obese patients and those under pharmacologic stress. This technique provides valuable risk stratification and functional assessment, surpassing SPECT in certain scenarios.

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MRI and PET in Mouse Models of Myocardial Infarction
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MRI and PET in Mouse Models of Myocardial Infarction

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Area of Science:

  • Nuclear Cardiology
  • Cardiovascular Imaging

Background:

  • Growing interest in cardiac positron emission tomography (PET) for evaluating coronary artery disease (CAD).
  • Myocardial perfusion PET shows high accuracy in diagnosing obstructive CAD.

Purpose of the Study:

  • To evaluate the diagnostic accuracy and risk stratification capabilities of cardiac PET compared to SPECT.
  • To explore the advantages of PET in specific patient populations and stress conditions.

Main Methods:

  • Utilizing myocardial perfusion PET for diagnosis and risk stratification.
  • Comparing PET with SPECT, particularly in obese patients and during pharmacologic stress.
  • Assessing left ventricular function changes and quantifying myocardial perfusion.

Main Results:

  • PET demonstrates superior accuracy to SPECT, especially in obese individuals and those undergoing pharmacologic stress.
  • PET allows for quantification of myocardial perfusion and assessment of left ventricular function.
  • Gated myocardial perfusion PET provides clinically useful risk stratification.

Conclusions:

  • Cardiac PET is an accurate and valuable tool for diagnosing obstructive CAD and stratifying patient risk.
  • Hybrid PET/CT technology holds potential for integrated assessment of anatomic and functional CAD, despite implementation challenges.