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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...
Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
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...
Cardiac Catheterization IV: Nursing Management01:26

Cardiac Catheterization IV: Nursing Management

Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
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.
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Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
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Published on: March 15, 2022

Potential Irish dose reference levels for cardiac interventional examinations.

C J D'Helft1, P C Brennan, A M McGee

  • 1School of Medicine and Medical Science, University College Dublin, Dublin, Ireland. catherine.dhelft@ucd.ie

The British Journal of Radiology
|January 7, 2009
PubMed
Summary
This summary is machine-generated.

Radiation doses in cardiac imaging are high. This study established preliminary dose reference levels for coronary angiography and related procedures to guide optimization strategies and reduce patient exposure.

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Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
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Area of Science:

  • Medical Physics
  • Radiology
  • Cardiology

Background:

  • Collective radiation dose from cardio-angiography studies is the highest among non-CT radiological investigations.
  • Deterministic effects like erythema and ulceration highlight the need for dose optimization without compromising diagnostic efficacy.

Purpose of the Study:

  • To investigate patient radiation doses for four common cardiac radiological examinations: coronary angiography (CA), percutaneous coronary intervention (PCI), coronary angiograms followed by intervention (CA-PCI), and permanent pacemaker insertions (PPIs).
  • To establish preliminary dose reference levels (DRLs) for these procedures in Ireland.

Main Methods:

  • Radiation dose was monitored in 21 cardiac imaging suites across 14 hospitals using dose-area product meters for 1804 adult patients.
  • Operational and examination details, including cardiologist grade, patient information, procedure complexity, and exposure factors, were recorded.

Main Results:

  • Dose variation factors between centers ranged from 2.7 to 11.1, comparable to previously recorded intrahospital variations.
  • High doses were associated with longer screening times, higher patient body mass index, and increased procedure complexity.
  • Preliminary DRLs were proposed: 4200 cGy cm(2) for CA, 8400 cGy cm(2) for PCI, 10,700 cGy cm(2) for CA-PCI, and 2100 cGy cm(2) for PPI.

Conclusions:

  • The proposed DRLs provide essential guidance for optimizing radiation dose strategies in high-dose cardiac interventional procedures.
  • Establishing these guideline values is crucial for encouraging optimized practices and minimizing patient radiation exposure.