Evidence map›Paper›PMID 25856384›Full record

ArticlePhysics in medicine and biology2015

Design factors of intravascular dual frequency transducers for super-harmonic contrast imaging and acoustic angiography.

Jianguo Ma, K Heath Martin, Yang Li, Paul A Dayton, K Kirk Shung, Qifa Zhou, Xiaoning Jiang

Abstract read
In one paragraph

Article in Physics in medicine and biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. High-Frequency, 2-mm-Diameter Forward-Viewing 2-D Array for 3-D Intracoronary Blood Flow Imaging.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jianguo MaDepartment of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, USA.
K Heath Martin
Yang Li
Paul A Dayton
K Kirk Shung
Qifa Zhou
Xiaoning Jiang

Funding

A Resource on Medical Ultrasonic Transducer TechnologyP41EB002182 · NIBIB · UNIVERSITY OF SOUTHERN CALIFORNIA · PI SHUNG, K KIRK · 2003 to 2016
$13.3M
Micro-tumor detection by quantifying tumor-induced vascular abnormalities (PQ-13)R01CA170665 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAYTON, PAUL A · 2012 to 2015
$2.2M
Dual-frequency intravascular arrays for functional imaging of atherosclerosisR01EB015508 · NIBIB · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI JIANG, XIAONING · 2012 to 2015
$2.0M
NCI NIH HHS R01 CA170665NCI NIH HHS R01CA170665NIBIB NIH HHS P41 EB002182NIBIB NIH HHS P41EB02182NIBIB NIH HHS R01 EB015508NIBIB NIH HHS R01EB015508
6 · The paper itself

Abstract

Imaging of coronary vasa vasorum may lead to assessment of the vulnerable plaque development in diagnosis of atherosclerosis diseases. Dual frequency transducers capable of detection of microbubble super-harmonics have shown promise as a new contrast-enhanced intravascular ultrasound (CE-IVUS) platform with the capability of vasa vasorum imaging. Contrast-to-tissue ratio (CTR) in CE-IVUS imaging can be closely associated with low frequency transmitter performance. In this paper, transducer designs encompassing different transducer layouts, transmitting frequencies, and transducer materials are compared for optimization of imaging performance. In the layout selection, the stacked configuration showed superior super-harmonic imaging compared with the interleaved configuration. In the transmitter frequency selection, a decrease in frequency from 6.5 MHz to 5 MHz resulted in an increase of CTR from 15 dB to 22 dB when receiving frequency was kept constant at 30 MHz. In the material selection, the dual frequency transducer with the lead magnesium niobate-lead titanate (PMN-PT) 1-3 composite transmitter yielded higher axial resolution compared to single crystal transmitters (70 μm compared to 150 μm pulse length). These comparisons provide guidelines for the design of intravascular acoustic angiography transducers.

Indexed as

TransducersAngiographyContrast MediaUltrasonography, InterventionalContrast Media

Identifiers

PMID25856384
PMCPMC4427901

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.