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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...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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...
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...
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 II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
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,...

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Longitudinal Morphological and Physiological Monitoring of Three-dimensional Tumor Spheroids Using Optical Coherence Tomography
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Longitudinal Morphological and Physiological Monitoring of Three-dimensional Tumor Spheroids Using Optical Coherence Tomography

Published on: February 9, 2019

Intracoronary optical coherence tomography, basic theory and image acquisition techniques.

F Prati1, M W Jenkins, A Di Giorgio

  • 1Interventional Cardiology, San Giovanni Hospital, Rome, Italy.

The International Journal of Cardiovascular Imaging
|February 18, 2011
PubMed
Summary
This summary is machine-generated.

Optical coherence tomography (OCT) offers a promising alternative to intravascular ultrasound (IVUS) for stent procedures and atherosclerosis management. This study details OCT imaging principles, key parameters like resolution and sensitivity, and acquisition techniques.

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Area of Science:

  • Biomedical Imaging
  • Medical Devices
  • Cardiovascular Technology

Background:

  • Intravascular ultrasound (IVUS) is a standard imaging modality for guiding cardiovascular interventions.
  • Limitations of IVUS include lower resolution and challenges in visualizing certain tissue characteristics.
  • Optical coherence tomography (OCT) has emerged as a potential advanced imaging solution.

Purpose of the Study:

  • To introduce the fundamental principles of Optical Coherence Tomography (OCT) imaging.
  • To elucidate critical OCT imaging parameters relevant to intravascular applications.
  • To review established OCT image acquisition methodologies.

Main Methods:

  • Description of the basic physics underlying OCT signal generation and detection.
  • Explanation of key performance metrics: axial resolution, lateral resolution, and sensitivity.
  • Overview of common intravascular OCT catheter designs and pullback systems.

Main Results:

  • OCT provides high-resolution cross-sectional imaging of vascular tissue.
  • Axial resolution is determined by the light source bandwidth, while lateral resolution depends on the focusing optics.
  • Sensitivity is crucial for differentiating tissue types and detecting subtle plaque morphology.

Conclusions:

  • OCT imaging is a valuable tool for intravascular imaging, complementing or potentially replacing IVUS.
  • Understanding OCT parameters is essential for accurate interpretation and effective clinical application.
  • Further development in OCT acquisition techniques will enhance its utility in diagnosing and treating cardiovascular diseases.