Related Experiment Video

Updated: Feb 5, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications
08:21

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

11.8K

A Dual-Mode Imaging Catheter for Intravascular Ultrasound Application

Jiehan Hong, Min Su, Yanyan Yu

    IEEE Transactions on Medical Imaging
    |September 18, 2018
    PubMed

    Insights

    This study introduces a novel dual-mode imaging catheter combining ultrasound and flow measurement. This innovative device enables simultaneous assessment of arterial morphology and blood flow, aiding in cardiovascular disease diagnosis.

    Area of Science:

    • Cardiovascular imaging
    • Medical device engineering
    • Biomedical ultrasound

    Background:

    • Arterial morphology and blood flow are crucial for cardiovascular disease evaluation.
    • Current intravascular imaging methods lack functional flow data.
    • Existing flow assessment tools do not provide cross-sectional arterial images.

    Purpose of the Study:

    • To design and fabricate a novel dual-mode imaging catheter.
    • To integrate forward-looking and side-looking ultrasonic transducers in a single catheter.
    • To enable simultaneous acquisition of arterial morphology and functional flow parameters.

    Main Methods:

    • Fabrication of a unique dual-mode catheter housing both forward-looking and side-looking ultrasonic transducers.
    • Inclusion of components for precise blood flow measurement.
    • Testing of the catheter's capability to acquire multiple arterial parameters.

    Main Results:

    • The dual-mode catheter successfully provides both morphological and functional flow data.
    • Multiple arterial parameters can be acquired during a single, one-time procedure.
    • The device demonstrates potential for comprehensive arterial assessment.

    Conclusions:

    • The developed dual-mode imaging catheter offers a unified approach for evaluating arterial health.
    • This novel catheter facilitates simultaneous morphological and functional assessment of arteries.
    • The technology holds promise for improved functional diagnosis of atherosclerotic arteries.

    More Related Videos

    A Novel Application of Musculoskeletal Ultrasound Imaging10:53

    A Novel Application of Musculoskeletal Ultrasound Imaging

    Published on: September 17, 2013

    24.6K
    Dual-mode Imaging of Cutaneous Tissue Oxygenation and Vascular Function11:35

    Dual-mode Imaging of Cutaneous Tissue Oxygenation and Vascular Function

    Published on: December 8, 2010

    16.9K

    Related Concept Videos

    What is a Mode?01:07

    What is a Mode?

    The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
    There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
    A data set with two modes is called bimodal. For example,...
    26.1K
    Ventilatory Modes01:14

    Ventilatory Modes

    Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
    There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
    Full Support Modes
    Full support modes include controlled mechanical ventilation, continuous mandatory...
    1.6K
    Modes of Standing Waves - I01:03

    Modes of Standing Waves - I

    A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
    4.1K
    Modes of Standing Waves: II01:04

    Modes of Standing Waves: II

    The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
    For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
    1.8K
    MOSFET: Enhancement Mode01:22

    MOSFET: Enhancement Mode

    Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
    In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
    826
    Modes of Operations of BJT01:21

    Modes of Operations of BJT

    A Bipolar Junction Transistor (BJT) is a versatile component in electronics, functioning in four distinct modes based on the biasing of its junctions: active, saturation, cut-off, and inverted modes.
    Active Mode: The most common mode for amplification, the active mode features a forward-biased emitter-base junction and a reverse-biased base-collector junction. This setup enables electrons to be injected from the emitter to the base while blocking the majority carriers at the collector. The...
    2.0K