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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...
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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.
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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...
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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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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...
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Three-dimensional computed tomography in the cardiac catheterization laboratory.

Amar Krishnaswamy1, E Murat Tuzcu, Samir R Kapadia

  • 1Department of Cardiology, Cleveland Clinic, Cleveland, Ohio, USA.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
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Summary

This study shows that fusing 3D computed tomography (CT) datasets with fluoroscopy in cardiac catheterization labs is feasible. This fusion provides valuable anatomic guidance for structural cardiac interventions.

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Area of Science:

  • Cardiovascular Imaging
  • Interventional Cardiology
  • Medical Technology

Background:

  • Fluoroscopic imaging in cardiac catheterization lacks detailed anatomy for interventions.
  • Modern C-arms can acquire 3D CT-like images (Syngo DynaCT).
  • Overlaying CT data onto fluoroscopy may enhance procedural guidance.

Purpose of the Study:

  • To assess the feasibility of fusing 3D CT datasets with routine fluoroscopy.
  • To evaluate the utility of this fusion technique in a cardiac catheterization setting.

Main Methods:

  • Three patients with diverse clinical indications were studied.
  • Preprocedural contrast-enhanced chest CT data were registered with in-lab Syngo DynaCT.
  • CT:CT registration was fused with real-time fluoroscopic imaging.

Main Results:

  • Successful fusion of CT data to fluoroscopic images was achieved in all three patients.
  • The fused images provided significant anatomic guidance for catheter and device manipulation.

Conclusions:

  • CT-fluoroscopy fusion is a viable technique for delineating cardiovascular structures during procedures.
  • Future research should investigate potential reductions in contrast and radiation dose.