Related Experiment Video

Updated: Oct 7, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
06:29

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

Published on: June 11, 2019

Prognostic role of stress thallium test in patients with significant coronary artery disease

C M Khanna1, A Mondal, G Khanna

  • 1Department of Cardiology and Nuclear Medicine, Institute of Nuclear Medicine and Allied Sciences, Lucknow Road, Delhi-110 054.

The Journal of the Association of Physicians of India
|March 7, 2001
PubMed

Insights

Patients with coronary artery disease (CAD) and normal exercise thallium images have a favorable prognosis. This study confirms a low cardiac event rate in medically treated CAD patients with normal thallium scans.

Area of Science:

  • Cardiology
  • Nuclear Cardiology
  • Diagnostic Imaging

Background:

  • Normal exercise thallium-201 myocardial perfusion studies indicate a benign outcome.
  • The prognostic value of normal exercise tomographic thallium images in patients with diagnosed coronary artery disease (CAD) requires further investigation.

Purpose of the Study:

  • To assess the prognostic significance of normal exercise tomographic thallium imaging in medically managed patients with angiographically confirmed coronary artery disease (CAD).

Main Methods:

  • Sixty-eight patients with significant angiographic CAD (Group A) and 70 patients with normal coronary arteries (Group B) were studied.
  • Group A patients had varying degrees of vessel disease (one, two, or three vessels).
  • Follow-up averaged 30 months.

Main Results:

  • In Group A, only two cardiac events occurred (one cardiac death, one non-fatal myocardial infarction) over 30 months, with an event rate of 0.96% per year.
  • Neither of the two patients experiencing events had ST segment depression during exercise.
  • One patient in Group B (normal coronaries) experienced a non-fatal myocardial infarction.

Conclusions:

  • Medically treated patients with coronary artery disease (CAD), including those with multivessel disease, exhibit a benign prognosis when exercise thallium imaging is normal.
  • These findings have significant long-term implications for managing CAD patients and reducing healthcare costs.
Abstract

More Related Videos

Testing Acetylcholine Followed by Adenosine for Invasive Diagnosis of Coronary Vasomotor Disorders05:58

Testing Acetylcholine Followed by Adenosine for Invasive Diagnosis of Coronary Vasomotor Disorders

Published on: February 3, 2021

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function10:28

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function

Published on: March 15, 2022

Related Concept Videos

Exercise Stress Test01:26

Exercise Stress Test

Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
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...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
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...
Angina III: Clinical Manifestations and Assessment01:29

Angina III: Clinical Manifestations and Assessment

Angina manifests as chest pain, tightness, or squeezing discomfort typically located behind the breastbone. It can radiate to the neck, jaw, shoulders, and inner aspects of the upper arms, most commonly the left arm. Patients may experience shortness of breath, fatigue, profuse sweating, dizziness, indigestion, heartburn, palpitations, anxiety, and vomiting as accompanying symptoms. This pain often lasts a few minutes and is triggered by physical exertion, emotional stress, heavy meals, or cold...