Evidence map›Paper›PMID 41449297›Full record

ArticleEmergency radiology2026

Necessity of whole-body CT in patients with acute ischemic stroke and proposal for a simple brain perfusion imaging and whole-body CT protocol using split-bolus injection.

Takayuki Inomata, Koji Nakaya, Hiroto Shiozaki, Sho Ogiwara, Kimiyuki Uchihara, Yasuto Noda

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Article in Emergency radiology, 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

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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.

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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

6 authors.

Takayuki InomataDepartment of Radiological Technology, Faculty of Health Science, Suzuka University of Medical Science, 1001-1 Kishioka, Suzuka, Mie, 510-0293, Japan. meru_7493@yahoo.co.jp.ORCID http://orcid.org/0000-0002-2199-6850
Koji NakayaDepartment of Radiological Technology, Faculty of Health Science, Suzuka University of Medical Science, 1001-1 Kishioka, Suzuka, Mie, 510-0293, Japan.ORCID http://orcid.org/0000-0001-8276-9590
Hiroto ShiozakiDepartment of Radiological Technology, Fuji City General Hospital, 50 Takashima-cho, Fuji, Shizuoka, 417-8567, Japan.ORCID http://orcid.org/0009-0000-1249-4640
Sho OgiwaraDepartment of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan.
Kimiyuki UchiharaDepartment of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan.
Yasuto NodaDepartment of Neurosurgery, Fuji City General Hospital, 50 Takashima-cho, Fuji, Shizuoka, 417-8567, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to evaluate the necessity of whole-body computed tomography (CT) in patients with acute ischemic stroke (AIS) and to assess the usefulness of a simple imaging protocol combining brain CT perfusion (CTP) and whole-body CT using low-tube voltage and split-bolus injection (SPBI).

methodsWe retrospectively analyzed 123 patients with suspected AIS who underwent both brain CTP and whole-body CT between April 2022 and May 2025. Image quality, vascular and parenchymal CT values, diagnostic findings, and incidence of post-contrast acute kidney injury (PC-AKI) were assessed. A control group of 115 patients who underwent dynamic contrast-enhanced CT of the chest and abdomen was used for comparison.

resultsThe proposed protocol achieved high CT values (≥ 350 HU) in major vessels and comparable CT enhancement in organs compared to the control group. Visual assessment yielded very high scores (vessels, 4.975; organs, 3.725) and complete inter-reader agreement (vessels, k = 0.98; organs, k = 0.877). Only one patient (0.8%) who underwent mechanical thrombectomy developed PC-AKI. Whole-body CT revealed clinically significant vascular disease (including aortic dissection, pulmonary embolism, and severe carotid stenosis) in 14.6% of cases and incidental suspected malignancy in 5.7% of cases.

conclusionFollowing brain CTP, whole-body CT enables the detection of significant vascular and incidental findings in patients with suspected AIS and provides valuable diagnostic information. This protocol, which utilizes low-tube voltage and SPBI, is a simple, time-efficient, and safe method that enhances vascular and organ contrast, supporting its clinical utility in AIS diagnosis.

Indexed as

Contrast MediaIschemic StrokePerfusion ImagingTomography, X-Ray ComputedWhole Body ImagingAgedAged, 80 and overFemaleHumansMaleMiddle AgedRetrospective StudiesContrast MediaAcute ischemic strokeBrain CT perfusionLow-tube voltageSplit-bolus injectionWhole-body CT

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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 Socratic graph.