Evidence map›Paper›PMID 38169002›Full record

ArticleClinical neuroradiology2024

How Topographic Diffusion-Weighted Imaging Patterns can Predict the Potential Embolic Source.

Y Yamamoto, Y Nagakane, E Tanaka, T Yamada, J Fujinami, T Ohara

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Article in Clinical neuroradiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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3 · Its place in the literature

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1 citing paper in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Y YamamotoDepartment of Neurology, Kyoto Katsura Hospital, 615-8256. 17 Yamada Hiraocho, Nishikyoku, Kyoto, Japan. yyamamot@fg7.so-net.ne.jp.ORCID http://orcid.org/0000-0001-6905-6406
Y NagakaneDepartment of Neurology, Kyoto Second Red Cross Hospital, 602-8026. 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, Japan.ORCID http://orcid.org/0000-0003-2203-7077
E TanakaDepartment of Neurology, Kyoto Prefectural University of Medicine, 602-8566. 465 Kajiicho Kamigyoku, Kyoto, Japan.ORCID http://orcid.org/0000-0001-8122-007X
T YamadaDepartment of Neurology and Stroke Treatment, Japanese Red Cross Kyoto Daiichi Hospital, 605-0981. 15-749 Honmachi, Higashiyama, Kyoto, Japan.ORCID http://orcid.org/0000-0001-5196-1934
J FujinamiDepartment of Neurology, Kyoto Second Red Cross Hospital, 602-8026. 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, Japan.ORCID http://orcid.org/0000-0001-5561-5131
T OharaDepartment of Neurology, Kyoto Prefectural University of Medicine, 602-8566. 465 Kajiicho Kamigyoku, Kyoto, Japan.ORCID http://orcid.org/0000-0002-8116-4730

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo develop an imaging prediction model for patients with embolic stroke of undetermined source (ESUS), we investigated the association of topographic diffusion-weighted imaging (DWI) patterns with potential embolic sources (PES) identified by transesophageal echocardiography.

methodsFrom a total of 992 consecutive patients with embolic stroke, 366 patients with the ESUS group were selected. ESUS was defined as no atrial fibrillation (Af) within 24h from admission and no PES after general examination. Clinical variables include age (> 80years, 70-80 years), sex, vascular risk factors and left atrial diameter > 4 cm. Age, sex and vascular risk factors adjusted odds ratio of each DWI for the different PESs were calculated. DWI was determined based on the arterial territories. Middle cerebral arteries were divided into 4 segments, i.e., M1-M4. Moreover, M2 segments were subdivided into superior and inferior branches.

resultsThe 366 patients consisted of 168 with paroxysmal Af (pAf), 77 with paradoxical embolism, 71 with aortic embolism and 50 with undetermined embolism after transesophageal echocardiography. The variables adjusted odds ratio (OR) of internal carotid artery (OR: 12.1, p = 0.037), M1 (4.2, p = 0.001), inferior M2 (7.5, p = 0.0041) and multiple cortical branches (12.6, p < 0.0001) were significantly higher in patients with pAf. Striatocapsular infarction (12.5, p < 0.0001) and posterior inferior cerebellar artery infarcts (3.6, p = 0.018) were significantly associated with paradoxical embolism. Clinical variables adjusted OR of multiple small scattered infarcts (8.3, p < 0.0001) were significantly higher in patients with aortic embolism.

conclusionThe associations of DWI with different PES have their distinctive characteristics and DWI along with clinical variables may help predict PES in patients with ESUS.

Indexed as

Embolic StrokeMagnetic Resonance ImagingAgedAged, 80 and overAtrial FibrillationHumansIntracranial EmbolismLogistic ModelsMagnetic Resonance AngiographyMaleOdds RatioAtrial fibrillationDiffusion weighted imageEmbolic stroke of undetermined sourceParadoxical embolism

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