Evidence map›Paper›PMID 29181722›Full record

ArticleAnnals of biomedical engineering2018

Evaluation of Decoding Algorithms for Estimating Bladder Pressure from Dorsal Root Ganglia Neural Recordings.

Shani E Ross, Zhonghua Ouyang, Sai Rajagopalan, Tim M Bruns

Abstract readEvaluation Study
In one paragraph

Article in Annals of biomedical engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Ultracompliant Carbon Nanotube Direct Bladder Device.Advanced healthcare materials · 2019
    Article
  10. Real-Time Bladder Pressure Estimation for Closed-Loop Control in a Detrusor Overactivity Model.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2019
    Article
  11. Behavioral Monitoring and Neuromodulation of Feline Voiding Function.International IEEE/EMBS Conference on Neural Engineering : [proceedings]. International IEEE EMBS Conference on Neural Engineering · 2019
    Article
  12. Article
  13. Article
  14. Detection of Bladder Contractions From the Activity of the External Urethral Sphincter in Rats Using Sparse Regression.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2018
    Article
  15. Article
  16. Review
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

4 authors at 3 institutions in 1 country.

Shani E RossBiomedical Engineering Department, University of Michigan, Ann Arbor, MI, USA.
Zhonghua OuyangBiomedical Engineering Department, University of Michigan, Ann Arbor, MI, USA.
Sai RajagopalanSchool of Medicine, Vanderbilt University, Nashville, TN, USA.
Tim M BrunsBiomedical Engineering Department, University of Michigan, Ann Arbor, MI, USA. bruns@umich.edu.ORCID http://orcid.org/0000-0003-1692-0541
University of Michigan · USGeorge Mason University · USVanderbilt University · US

Funding

Development of a novel multi-modal spinal root interfaceU18EB021760 · NIBIB · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BRUNS, TIMOTHY M., YOON, EUISIK · 2015 to 2017
$723k
Craig H. Neilsen Foundation 314980National Institute of Biomedical Imaging and Bioengineering U18EB021760NIBIB NIH HHS U18 EB021760
6 · The paper itself

Abstract

A closed-loop device for bladder control may offer greater clinical benefit compared to current open-loop stimulation devices. Previous studies have demonstrated the feasibility of using single-unit recordings from sacral-level dorsal root ganglia (DRG) for decoding bladder pressure. Automatic online sorting, to differentiate single units, can be computationally heavy and unreliable, in contrast to simple multi-unit thresholded activity. In this study, the feasibility of using DRG multi-unit recordings to decode bladder pressure was examined. A broad range of feature selection methods and three algorithms (multivariate linear regression, basic Kalman filter, and a nonlinear autoregressive moving average model) were used to create training models and provide validation fits to bladder pressure for data collected in seven anesthetized feline experiments. A non-linear autoregressive moving average (NARMA) model with regularization provided the most accurate bladder pressure estimate, based on normalized root-mean-squared error, NRMSE, (17 ± 7%). A basic Kalman filter yielded the highest similarity to the bladder pressure with an average correlation coefficient, CC, of 0.81 ± 0.13. The best algorithm set (based on NRMSE) was further evaluated on data obtained from a chronic feline experiment. Testing results yielded a NRMSE and CC of 10.7% and 0.61, respectively from a model that was trained on data recorded 2 weeks prior. From offline analysis, implementation of NARMA in a closed-loop scheme for detecting bladder contractions would provide a robust control signal. Ultimate integration of closed-loop algorithms in bladder neuroprostheses will require evaluations of parameter and signal stability over time.

Indexed as

Action PotentialsAlgorithmsNeural Networks, ComputerSignal Processing, Computer-AssistedAnimalsCatsGanglia, SpinalMalePressureUrinary BladderBladderDorsal root gangliaDRGKalman filterLower urinary tractMicroelectrodeNeural network

Identifiers

PMID29181722
PMCPMC5771828
OpenAlexW2770077358

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.