Related Experiment Video

Updated: Aug 22, 2026

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
08:13

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

Published on: February 16, 2016

Thallium scintigraphy for the prognosis of idiopathic dilated cardiomyopathy

Toshikazu Yabe1, Takashi Furuno, Hiroaki Kitaoka

  • 1Department of Medicine and Geriatrics, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi 783-8505.

Journal of Cardiology
|December 5, 2002
PubMed

Insights

Thallium scintigraphy reveals perfusion defects that predict cardiac death in younger dilated cardiomyopathy patients. For patients under 60, absence of defects indicates a good long-term prognosis.

Area of Science:

  • Cardiology
  • Nuclear Medicine
  • Medical Prognostics

Background:

  • Idiopathic dilated cardiomyopathy (IDC) is a significant cause of heart failure.
  • Accurate prognostic markers are crucial for managing IDC patients, especially those considered for heart transplantation.

Purpose of the Study:

  • To evaluate the prognostic significance of thallium-201 perfusion defects in patients with idiopathic dilated cardiomyopathy.
  • To assess the impact of patient age on the predictive value of these perfusion defects.

Main Methods:

  • Seventy-four patients with dilated cardiomyopathy underwent thallium-201 scintigraphy.
  • Clinical, hemodynamic, and prognostic data were collected and analyzed.
  • Statistical analyses included univariate and stepwise discriminant analysis.

Main Results:

  • Perfusion defects were observed in 61% of patients < 60 years and 72% of patients >= 60 years.
  • Thallium-201 perfusion defects significantly predicted cardiac death only in patients < 60 years (p=0.003).
  • Five-year survival was 100% without defects vs. 58.4% with defects in patients < 60 years, but not significantly different in older patients.

Conclusions:

  • Thallium-201 scintigraphy is a valuable prognostic tool for younger dilated cardiomyopathy patients (< 60 years).
  • Absence of thallium perfusion defects suggests a favorable long-term prognosis in this age group.
  • Prognostic value of perfusion defects is age-dependent and less significant in elderly patients.
Abstract

More Related Videos

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques06:29

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals11:09

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

Published on: December 16, 2022

Related Concept Videos

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
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 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...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): 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...