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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...
Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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...
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...
Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
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...

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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
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Technical advances in cardiac CT.

Stephan Achenbach1, Takeshi Kondo

  • 1Department of Cardiology, University of Giessen, Klinikstrasse 33, 35392 Giessen, Germany. stephan.achenbach@uk-erlangen.de

Cardiology Clinics
|February 7, 2012
PubMed
Summary
This summary is machine-generated.

Recent advances in cardiac computed tomography (CT) have improved coronary CT angiography. Innovations in hardware and software enhance image quality and reduce radiation exposure, benefiting challenging patient cases.

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Area of Science:

  • Cardiovascular imaging
  • Radiology
  • Medical technology

Background:

  • Cardiac computed tomography (CT) and coronary CT angiography have seen significant advancements.
  • Progress is driven by innovations in CT hardware and image processing software.

Purpose of the Study:

  • To review recent technological progress in cardiac CT.
  • To highlight innovations improving coronary CT angiography.

Main Methods:

  • Review of recent technical innovations in CT hardware (e.g., area detectors, dual-source CT).
  • Examination of advancements in CT image reconstruction and processing software (e.g., iterative reconstruction algorithms).

Main Results:

  • Technical innovations have successfully lowered radiation exposure for coronary CT angiography.
  • Image quality has been improved, particularly for patients with high heart rates or severe calcification.
  • Key contributions include area detectors, dual-source CT, and iterative reconstruction.

Conclusions:

  • Cardiac CT technology has rapidly advanced, enhancing diagnostic capabilities.
  • These innovations improve patient safety and image quality in coronary CT angiography.
  • Future developments promise further improvements in cardiovascular imaging.