ArticleJournal of medical ultrasonics (2001)2026
One-transmission harmonic imaging with high spatial resolutions using probe consisting of two piezoelectric layer elements.
Article in Journal of medical ultrasonics (2001), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
purposePulse inversion (PI) harmonic imaging has been commonly used because of its contrast and spatial resolution superior to conventional fundamental imaging. However, it requires two transmissions with opposite phases, which reduces the imaging frame rate by half. This study aimed to solve this problem
methodAn ultrasonic array probe consisting of piezoelectric elements with two polarization-inverted layers, which requires only one transmission to extract the second harmonic components, was developed. Its characteristics, such as electric impedance and its phase, were predicted by solving piezoelectric as well as wave equations, and then compared with measurement. The acoustic pressures produced from the developed probe, when excited at the lower and higher resonant frequencies, were measured using a hydrophone. Finally, imaging of wires in water and phantoms containing wires and a cyst model were performed using the developed probe
resultThe spatial resolution, especially in the axial direction, was significantly improved with the developed probe consisting of the two piezoelectric layer elements in comparison with the conventional second harmonic imaging (HI) using a band pass filter. It was almost comparable to that of conventional PI imaging despite only one transmission being required
conclusionA probe consisting of two piezoelectric layer elements enabling one-transmission HI was developed. The spatial resolution obtained using the developed probe was slightly worse but almost comparable to that of conventional PI imaging even with only one transmission.
Indexed as
Identifiers
42360671What OpenQuestion holds
Registered trials
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.