Evidence map›Paper›PMID 25914443›Full record

ArticleSensors and actuators. A, Physical2015

Angled-focused 45 MHz PMN-PT single element transducer for intravascular ultrasound imaging.

Sangpil Yoon, Jay Williams, Bong Jin Kang, Changhan Yoon, Nestor Cabrera-Munoz, Jong Seob Jeong, Sang Goo Lee, K Kirk Shung, Hyung Ham Kim

Abstract read
In one paragraph

Article in Sensors and actuators. A, Physical, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
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

13 citing papers in PubMed, 41 citations in OpenAlex.

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  13. Dual-element needle transducer for intravascular ultrasound imaging.Journal of medical imaging (Bellingham, Wash.) · 2015
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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

9 authors at 4 institutions in 2 countries.

Sangpil YoonDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Jay WilliamsDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Bong Jin KangDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Changhan YoonDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Nestor Cabrera-MunozDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Jong Seob JeongDepartment of Medical Biotechnology, Dongguk University, Seoul 100-715, Republic of Korea.
Sang Goo LeeIBULE Photonics Co., Ltd., Incheon, Republic of Korea.
K Kirk ShungDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Hyung Ham KimDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA ; Analogic Corporation, Peabody, MA 01960, USA.
University of Southern California · USAnalogic (United States) · USDongguk University · KRIbule Photonics (South Korea) · KR

Funding

A Resource on Medical Ultrasonic Transducer TechnologyP41EB002182 · NIBIB · UNIVERSITY OF SOUTHERN CALIFORNIA · PI SHUNG, K KIRK · 2003 to 2016
$13.3M
NIBIB NIH HHS P41 EB002182
6 · The paper itself

Abstract

A transducer with an angled and focused aperture for intravascular ultrasound imaging has been developed. The acoustic stack for the angled-focused transducer was made of PMN-PT single crystal with one matching layer, one protective coating layer, and a highly damped backing layer. It was then press-focused to a desired focal length and inserted into a thin needle housing with an angled tip. A transducer with an angled and unfocused aperture was also made, following the same fabrication procedure, to compare the performance of the two transducers. The focused and unfocused transducers were tested to measure their center frequencies, bandwidths, and spatial resolutions. Lateral resolution of the angled-focused transducer (AFT) improved more than two times compared to that of the angled-unfocused transducer (AUT). A tissue-mimicking phantom in water and a rabbit aorta tissue sample in rabbit blood were scanned using AFT and AUT. Imaging with AFT offered improved contrast, over imaging with AUT, of the tissue-mimicking phantom and the rabbit aorta tissue sample by 23 dB and 8 dB, respectively. The results show that AFT has strong potential to provide morphological and pathological information of coronary arteries with high resolution and high contrast.

Indexed as

Angled-focused transducerContrastCoronary stenosis evaluationHigh frequency transducerIntravascular ultrasound (IVUS) imagingRabbit aorta

Identifiers

PMID25914443
PMCPMC4405812
OpenAlexW1987662792

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.