Single Crystal High Frequency Intravascular Ultrasound Transducer with 40 Micron Axial Resolution.

07:00 EST 28th November 2019 | BioPortfolio

Summary of "Single Crystal High Frequency Intravascular Ultrasound Transducer with 40 Micron Axial Resolution."

Intravascular ultrasound (IVUS) is one of the most useful tools available today to assist intravascular stenting procedures. Having higher resolution is very important for helping doctors to evaluate the nature of atherosclerosis plaques. Current commercial IVUS systems have a spatial resolution of 70-200 µm in axial direction and 200-400 µm in lateral direction, which are insufficient for accurate diagnosis. We report here a three-matching-layer design IVUS transducer using 0.72Pb(Mg1/3Nb2/3)O3 0.28PbTiO3 single crystal, which can improve the axial resolution to 40 µm without sacrificing the penetration depth. Wire phantom imaging and in vitro porcine coronary artery imaging show noticeably better axial resolution and similar penetration depth compared to that of a commercial IVUS transducer.


Journal Details

This article was published in the following journal.

Name: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
ISSN: 1525-8955


DeepDyve research library

PubMed Articles [25189 Associated PubMed Articles listed on BioPortfolio]

A Miniaturized Low-Intensity Ultrasound Device for Wearable Medical Therapeutic Applications.

Low-intensity ultrasound has drawn increasing attention recently as a non-invasive modality for medical therapeutic applications. Current commercially available low-intensity ultrasound devices are bu...

Coherent Multi-Transducer Ultrasound Imaging.

This work extends the effective aperture size by coherently compounding the received radio frequency data from multiple transducers. As a result, it is possible to obtain an improved image, with enhan...

Cylindrical Transducer for Intravascular ARFI Imaging: Design & Feasibility.

Intravascular acoustic radiation force impulse (IV-ARFI) imaging has the potential to identify vulnerable atherosclerotic plaques and improve clinical treatment decisions and outcomes for patients wit...

Intraocular Pressure-Dependent Corneal Elasticity Measurement Using High-Frequency Ultrasound.

Measurement of corneal biomechanical properties can aid in predicting corneal responses to diseases and surgeries. For delineation of spatially resolved distribution of corneal elasticity, high-resolu...

110  mW single-frequency Yb:YAG crystal-derived silica fiber laser at 1064  nm.

A single-frequency laser based on Yb:YAG crystal-derived silica fiber (YDSF) was demonstrated. The YDSF was fabricated by a molten-core method with a doping concentration of 4.8 wt. % for YbO, whose ...

Clinical Trials [12633 Associated Clinical Trials listed on BioPortfolio]

Ultrasound to Enhance Paclitaxel Uptake in Critical Limb Ischemia: the PACUS Trial

The PACUS Trial was a single center, single blinded, randomized trial designed to evaluate the safety and efficacy of intravascular percutaneous catheter-delivered ultrasound energy to imp...

Optical Coherence Tomography (OCT) Intravascular Ultrasound (IVUS) Dual Imaging

Both intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are standardly used and have been extensively studied separately to guide percutaneous coronary intervention and...

(3D) Ultrasound Imaging Liver and Kidney

This study is to assess the addition of 3D ultrasound guidance during standard care ablation or biopsies of liver or kidney tumours. 3D ultrasound only differs from conventional 2D ultraso...

The Effects of Transcranial Focused Ultrasound on Human Motor Learning

Transcranial focused ultrasound (tFUS) is a form of neuromodulation that uses a single element transducer to produce highly focused low-intensity acoustic energy that can be used to affect...

Assessing the Comparability of 2D and 4D Ultrasound Measurements

Investigators will recruit 20 healthy volunteers between the ages of 18 and 80, who have no history of carpal tunnel syndrome or wrist injury. Images will be captured twice, first with the...

Medical and Biotech [MESH] Definitions

Tissue ablation of the PROSTATE performed by ultrasound from a transducer placed in the RECTUM. The procedure is used to treat prostate cancer (PROSTATIC NEOPLASMS) and benign prostatic hypertrophy (PROSTATIC HYPERPLASIA).

Ventilatory support system using frequencies from 60-900 cycles/min or more. Three types of systems have been distinguished on the basis of rates, volumes, and the system used. They are high frequency positive-pressure ventilation (HFPPV); HIGH-FREQUENCY JET VENTILATION; (HFJV); and high-frequency oscillation (HFO).

The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.

The use of focused, high-frequency sound waves to destroy tissue. It is sometimes used in conjunction with but is distinct from INTERVENTIONAL ULTRASONOGRAPHY.

The use of HIGH-ENERGY SHOCK WAVES, in the frequency range of 20-60 kHz, to cut through or remove tissue. The tissue fragmentation by ultrasonic surgical instruments is caused by mechanical effects not heat as with HIGH-INTENSITY FOCUSED ULTRASOUND ABLATION.

Quick Search

DeepDyve research library

Relevant Topic

Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...

Searches Linking to this Article