Evidence map›Paper›PMID 41667734›Full record

Observational studyNeurocritical care2026

Evaluation of Intracranial Pressure in Patients with Severe Brain Injury Using Contrast-Enhanced Ultrasound: A Pilot Study with Preliminary Findings.

Xixi Sun, Jiayuan Chai, Qian Li, Lizhi Zheng, Jia Sun, Nan Cao, Caibao Hu, Bin Huang

Abstract readObservational Study
In one paragraph

Observational study in Neurocritical care, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Xixi Sun *Department of Ultrasound, Zhejiang Hospital, No. 1229 Gudun Road, Xihu District, Hangzhou, 310013, Zhejiang Province, China.
Jiayuan Chai *Department of Ultrasound, Zhejiang Hospital, No. 1229 Gudun Road, Xihu District, Hangzhou, 310013, Zhejiang Province, China.
Qian Li *The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang Province, China.
Lizhi ZhengDepartment of Ultrasound, The First People's Hospital of Pinghu, No. 500 Sangang Road, Danghu Street, Pinghu, 314200, Zhejiang Province, China.
Jia SunDepartment of Ultrasound, The First People's Hospital of Pinghu, No. 500 Sangang Road, Danghu Street, Pinghu, 314200, Zhejiang Province, China.
Nan CaoDepartment of Ultrasound, Zhejiang Hospital, No. 1229 Gudun Road, Xihu District, Hangzhou, 310013, Zhejiang Province, China.
Caibao HuDepartment of Critical Care Medicine, Zhejiang Hospital, No. 1229 Gudun Road, Xihu District, Hangzhou, 310013, Zhejiang Province, China.
Bin HuangDepartment of Ultrasound, Zhejiang Hospital, No. 1229 Gudun Road, Xihu District, Hangzhou, 310013, Zhejiang Province, China. hb2k@163.com.ORCID http://orcid.org/0000-0002-8960-9167

Funding

Medical Science and Technology Project of Zhejiang Province 2022KY489the Key Research & Development Project of Zhejiang Province 2024C03240
6 · The paper itself

Abstract

backgroundContrast-enhanced ultrasound (CEUS) has great potential for assessing increased intracranial pressure (ICP); however, the most appropriate parameters remain unknown. This study aimed to explore the application of quantitative analysis of CEUS diagnosing increased ICP in patients with severe brain injury after surgery, and to provide a novel idea for the non-invasive evaluation of ICP.

methodsThis observational study included 34 patients with craniocerebral injuries admitted to the intensive care unit from May 2022 to December 2023. Patients were divided into a normal cranial pressure group (< 20 mm Hg) and an intracranial hypertension group (≥ 20 mm Hg) on the basis of the invasive ICP monitoring values. All patients underwent CEUS examination within 24 h postoperatively. Time-intensity curves of the central retinal artery and short posterior ciliary artery were generated using CEUS quantitative analysis software. Quantitative parameters were obtained, and the difference was calculated. The diagnostic accuracy of each parameter was assessed by computing the area under the receiver operating characteristic curve (AUC).

resultsIn total, 15 patients (44%) had intracranial hypertension. The arrival time difference (ΔAT) and peak time difference (ΔTP) were significantly higher in the intracranial hypertension group than in the normal cranial pressure group (P < 0.001 and P = 0.010, respectively). The peak intensity difference (ΔPkI) was significantly lower in the intracranial hypertension group than in the normal cranial pressure group (P = 0.025). The diagnostic accuracy of ΔAT for identifying intracranial hypertension was excellent, with an AUC of 0.944 [95% confidence interval (CI) 0.874-1.014], which yielded an optimal cutoff value of 0.86 s with 93.3% sensitivity (95% CI 0.849-1.017) and 84.2% specificity (95% CI 0.719-0.964). The AUC of ΔAT was significantly higher than that of ΔTP and ΔPkI (AUC 0.761 and 0.721, respectively; both P < 0.05).

conclusionsThe CEUS quantitative analysis parameter, ΔAT, is a promising parameter for evaluating postoperative ICP elevation in patients with severe brain injury.

Indexed as

Brain InjuriesIntracranial HypertensionIntracranial PressureAdultAgedBrain Injuries, TraumaticContrast MediaFemaleHumansMaleMiddle AgedPilot ProjectsPreliminary DataUltrasonographyContrast MediaCentral retinal arteryContrast-enhanced ultrasoundIntracranial pressureQuantitative analysisSevere brain injury

Identifiers

PMID41667734
PMCPMC13368841

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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.