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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...
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...
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...
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...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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

Updated: May 18, 2026

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
11:09

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

Published on: December 16, 2022

Quantitative cardiac amyloid radionuclide imaging.

Robert Jh Miller1, Olivier F Clerc2, Sarah Am Cuddy2

  • 1Department of Cardiac Sciences, University of Calgary and Libin Cardiovascular Institute, Calgary, Alberta, Canada.

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
|May 16, 2026
PubMed
Summary
This summary is machine-generated.

Cardiac amyloid radionuclide imaging (CARI) using SPECT and PET is crucial for diagnosing cardiac amyloidosis. This review highlights quantitative methods for improved early detection, disease burden assessment, and patient monitoring.

Keywords:
Cardiac amyloidosis radiotracer imagingPET/CTSPECT/CTTransthyretin cardiac amyloidosis

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Area of Science:

  • Nuclear medicine
  • Cardiology
  • Radiology

Background:

  • Cardiac amyloid radionuclide imaging (CARI) with SPECT bone-avid tracers is vital for noninvasive detection of transthyretin cardiac amyloidosis (CA).
  • Newer PET tracers also identify diverse CA types.
  • Current visual interpretation of CARI images has limitations.

Purpose of the Study:

  • To review quantitative SPECT and PET CARI methods.
  • To emphasize the need for standardization in CARI.
  • To explore the role of quantitative CARI in early CA detection, disease burden evaluation, risk prediction, and monitoring.

Main Methods:

  • Review of SPECT and PET CARI techniques.
  • Focus on quantitative imaging analysis.
  • Discussion of standardization needs for CARI.

Main Results:

  • SPECT and PET CARI generate "hot-spot" images of amyloid deposition.
  • Visual interpretation is common but limited.
  • Quantitative methods offer potential for improved diagnostic accuracy and patient management.

Conclusions:

  • Quantitative CARI holds significant promise for advancing cardiac amyloidosis diagnosis and management.
  • Standardization of quantitative SPECT and PET CARI is essential.
  • Quantitative CARI can facilitate early detection, burden assessment, risk stratification, and longitudinal monitoring of CA progression.