Evidence map›Paper›PMID 41108474›Full record

ArticleGeneral thoracic and cardiovascular surgery2026

Left atrial appendage blood flow analysis using four-dimensional flow magnetic resonance imaging.

Akihito Ohkawa, Tomohiro Nakajima, Shingo Tsushima, Itaru Hosaka, Ayaka Arihara, Naomi Yasuda, Tsuyoshi Shibata, Junji Nakazawa, Kazutoshi Tachibana, Mitsuhiro Nakanishi and 2 more

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Article in General thoracic and cardiovascular surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

12 authors.

Akihito OhkawaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan. akihito.ookawa7719@gmail.com.ORCID http://orcid.org/0009-0006-8415-020X
Tomohiro NakajimaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Shingo TsushimaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Itaru HosakaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Ayaka AriharaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Naomi YasudaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Tsuyoshi ShibataDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Junji NakazawaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Kazutoshi TachibanaDepartment of Cardiovascular Surgery, Hakodate Goryoukaku Hospital, Hakodate, Japan.
Mitsuhiro NakanishiDepartment of Radiology, Sapporo Medical University Hospital, Sapporo, Japan.
Yutaka IbaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.
Nobuyoshi KawaharadaDepartment of Cardiovascular Surgery, Sapporo Medical University, Minami 1 Jo Nishi 17 Chome 291, Chuou-ku, Sapporo, Hokkaido, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThrombus formation in atrial fibrillation is caused by blood flow stagnation within the left atrial appendage (LAA). It is believed that blood flow tends to stagnate within the LAA even in patients with sinus rhythm and high risk of stroke. This study evaluated blood flow within the LAA using four-dimensional flow magnetic resonance imaging among patients stratified by the congestive heart failure, hypertension, age, diabetes mellitus, prior stroke, vascular disease, age, sex category (CHA

methodsNinety-eight participants with sinus rhythm (70 patients, 28 controls) underwent non-contrast four-dimensional flow magnetic resonance imaging. Participants were divided into low- and high-risk groups (CHA

resultsThe blood flow volume was significantly reduced in the top segment of the LAA in the high-risk group (low-risk: 3.13 ± 1.07 mL/cm

conclusionsIn patients with high CHA

Indexed as

Atrial AppendageAtrial FibrillationAtrial Function, LeftMagnetic Resonance ImagingThrombosisAgedBlood Flow VelocityCase-Control StudiesFemaleHumansMaleMiddle AgedPredictive Value of TestsRegional Blood FlowRisk AssessmentRisk FactorsBlood flowFour-dimensional magnetic resonanceLeft atrial appendage

Identifiers

PMID41108474

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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.