Evidence map›Paper›PMID 32164714›Full record

ArticleCardiovascular ultrasound2020

Commercial 4-dimensional echocardiography for murine heart volumetric evaluation after myocardial infarction.

Cody Rutledge, George Cater, Brenda McMahon, Lanping Guo, Seyed Mehdi Nouraie, Yijen Wu, Flordeliza Villanueva, Brett A Kaufman

Open access · goldAbstract read
In one paragraph

Article in Cardiovascular ultrasound, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.8field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

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  14. Quantification of murine myocardial infarct size using 2-D and 4-D high-frequency ultrasound.American journal of physiology. Heart and circulatory physiology · 2022
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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

8 authors at 1 institution in 1 country.

Cody RutledgeVascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA.
George CaterDivision of Cardiology, Cardiovascular Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Brenda McMahonVascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Lanping GuoVascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Seyed Mehdi NouraieDivision of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
Yijen WuDepartment of Developmental Biology, University of Pittsburgh, Pittsburgh, PA, USA.
Flordeliza VillanuevaDivision of Cardiology, Cardiovascular Institute, University of Pittsburgh, Pittsburgh, PA, USA. villanuevafs@upmc.edu.
Brett A KaufmanVascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA. bkauf@pitt.edu.
University of Pittsburgh · US

Funding

Training Program in Imaging Sciences in Translational Cardiovascular ResearchT32HL129964 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Flordeliza S Villanueva · 2016 to 2026
$4.7M
Advanced High Resolution Rodent Ultrasound Imaging SystemS10OD023684 · OD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KIM, KANG · 2018 to 2018
$390k
American Heart Association 18TPA34230048NHLBI NIH HHS 1S10OD023684-01A1NHLBI NIH HHS T32HL129964-04NIH HHS S10 OD023684
6 · The paper itself

Abstract

backgroundTraditional preclinical echocardiography (ECHO) modalities, including 1-dimensional motion-mode (M-Mode) and 2-dimensional long axis (2D-US), rely on geometric and temporal assumptions about the heart for volumetric measurements. Surgical animal models, such as the mouse coronary artery ligation (CAL) model of myocardial infarction, result in morphologic changes that do not fit these geometric assumptions. New ECHO technology, including 4-dimensional ultrasound (4D-US), improves on these traditional models. This paper aims to compare commercially available 4D-US to M-mode and 2D-US in a mouse model of CAL.

methods37 mice underwent CAL surgery, of which 32 survived to a 4 week post-operative time point. ECHO was completed at baseline, 1 week, and 4 weeks after CAL. M-mode, 2D-US, and 4D-US were taken at each time point and evaluated by two separate echocardiographers. At 4 weeks, a subset (n = 12) of mice underwent cardiac magnetic resonance (CMR) imaging to serve as a reference standard. End systolic volume (ESV), end diastolic volume (EDV), and ejection fraction (EF) were compared among imaging modalities. Hearts were also collected for histologic evaluation of scar size (n = 16) and compared to ECHO-derived wall motion severity index (WMSI) and global longitudinal strain as well as gadolinium-enhanced CMR to compare scar assessment modalities.

results4D-US provides close agreement of ESV (Bias: -2.55%, LOA: - 61.55 to 66.66) and EF (US Bias: 11.23%, LOA - 43.10 to 102.8) 4 weeks after CAL when compared to CMR, outperforming 2D-US and M-mode estimations. 4D-US has lower inter-user variability as measured by intraclass correlation (ICC) in the evaluation of EDV (0.91) and ESV (0.93) when compared to other modalities. 4D-US also allows for rapid assessment of WMSI, which correlates strongly with infarct size by histology (r = 0.77).

conclusion4D-US outperforms M-Mode and 2D-US for volumetric analysis 4 weeks after CAL and has higher inter-user reliability. 4D-US allows for rapid calculation of WMSI, which correlates well with histologic scar size.

Indexed as

AnimalsCardiac VolumeDisease Models, AnimalEchocardiography, Four-DimensionalFemaleMaleMiceMyocardial InfarctionROC CurveVentricular Function, Left4-dimensional ultrasoundMouse coronary artery ligationPreclinical echocardiography

Identifiers

PMID32164714
PMCPMC7068892
OpenAlexW3012503969

What OpenQuestion holds

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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.