Evidence map›Paper›PMID 35721828›Full record

ArticleCommunications medicine2022

Performing tympanometry using smartphones.

Justin Chan, Ali Najafi, Mallory Baker, Julie Kinsman, Lisa R Mancl, Susan Norton, Randall Bly, Shyamnath Gollakota

Open access · goldAbstract read
In one paragraph

Article in Communications medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
3.4field-weighted citation impact, top 6% 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

4 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Establishing New Pediatric Thresholds for Digits-In-Noise Testing.Laryngoscope investigative otolaryngology · 2025
    Article
  3. Article
  4. Performing tympanometry using smartphones.Communications medicine · 2022
    Article
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

8 authors at 2 institutions in 1 country.

Justin ChanPaul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA USA.ORCID 0000-0002-1471-6187
Ali NajafiDepartment of Electrical and Computer Engineering, University of Washington, Seattle, WA USA.
Mallory BakerSeattle Children's Hospital and Research Institute, Seattle, WA USA.
Julie KinsmanSeattle Children's Hospital and Research Institute, Seattle, WA USA.
Lisa R ManclDepartment of Speech & Hearing Sciences, University of Washington, Seattle, WA USA.
Susan NortonSeattle Children's Hospital and Research Institute, Seattle, WA USA.
Randall BlySeattle Children's Hospital and Research Institute, Seattle, WA USA.ORCID 0000-0001-5308-527X
Shyamnath GollakotaPaul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA USA.ORCID 0000-0002-9863-3054
Seattle Children's Hospital · USUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Tympanometry is used as part of a battery of tests for screening of middle ear function and may help diagnose middle ear disorders, but remains available only on expensive test equipment. Methods: We report a low-cost smartphone-based tympanometer system that consists of a lightweight and portable attachment to vary air pressure in the ear and measure middle ear function. The smartphone displays a tympanogram and reports peak acoustic admittance in realtime. Our programmable and open-source system operates at 226 Hz and was tested on 50 pediatric patient ears in an audiology clinic in parallel with a commercial tympanometer. Results: Our study shows an average agreement of 86 ± 2% between the 100 tympanograms produced by the smartphone and commercial device when five pediatric audiologists classified them into five classes based on the Liden and Jerger classification. Conclusion: Given the accessibility and prevalence of budget smartphones in developing countries, our open-source tool may help provide timely and affordable screening of middle ear disorders.

Indexed as

Health careSigns and symptoms

Identifiers

PMID35721828
PMCPMC9203539
OpenAlexW4283010509

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.