Evidence map›Paper›PMID 39570963›Full record

SynthesisPloS one2024

Diagnostic value of arterial spin labeling for Alzheimer's disease: A systematic review and meta-analysis.

Xin-Yue Zhang, Hong Zhang, Qiong-Nan Bao, Zi-Han Yin, Ya-Qin Li, Man-Ze Xia, Zheng-Hong Chen, Wan-Qi Zhong, Ke-Xin Wu, Jin Yao and 1 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. Article
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

11 authors.

Xin-Yue ZhangSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.ORCID 0000-0002-2023-4053
Hong ZhangTraditional Chinese Medicine Hospital of Meishan, Meishan, China.ORCID 0000-0002-5708-7878
Qiong-Nan BaoSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Zi-Han YinSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Ya-Qin LiSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Man-Ze XiaSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Zheng-Hong ChenSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Wan-Qi ZhongSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Ke-Xin WuSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Jin YaoSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Fan-Rong LiangSchool of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundArterial spin labeling (ASL) is a magnetic resonance imaging (MRI) technique that offers a non-invasive approach for measuring cerebral blood perfusion (CBF). CBF serves as a marker of neuronal activity, and ASL has demonstrated the potential to detect reductions in CBF associated with early-stage neurodegenerative diseases like Alzheimer's disease (AD). Consequently, ASL has garnered growing interest as a potential diagnostic tool for AD. Despite the promise of ASL for diagnosing AD, there is a paucity of data regarding the pooled specificity and sensitivity of this technique in this context. The purpose of this systematic review and meta-analysis is to identify the accuracy of ASL in the diagnosis of AD with international clinical diagnosis as the gold standard.

methodsFour English databases and four Chinese databases were searched from their inception to 30 November 2023. Two independent reviewers extracted relevant information from the eligible articles, while the quality assessment of included studies was assessed using the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2). The meta-analysis was carried out using the area under the Receiver Operator Characteristic (ROC) curves (AUC) and sensitivity and specificity values. Meta-DiSc 1.4 was used to perform the statistical analysis. STATA 16.0 was used to perform publication bias and sensitivity analysis.

resultsOf 844 relevant articles retrieved, 10 studies involving 494 participants (AD patients = 262, healthy controls = 232) met the inclusion criteria and were included in the meta-analysis. However, the quality of studies was low based on QUADAS-2. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio of ASL for diagnosing AD was 0.83 (95% CI: 0.78-0.87), 0.81 (95% CI: 0.76-0.86), 4.52 (95% CI: 3.40-6.00), 0.22 (95% CI: 0.17-0.28), and 19.31(95% CI: 12.30-30.31), respectively. The pooled AUC = 0.8932. There was low heterogeneity across the included studies. Finally, sensitivity analysis suggested that the results were reliable.

conclusionASL is an effective and accurate method for the diagnosis of AD. However, due to the limited quantity and quality of the included studies, the above conclusions need to be verified by more studies. PROSPERO REGISTRATION: PROSPERO registration number: CRD42023484059.

Indexed as

Alzheimer DiseaseCerebrovascular CirculationSpin LabelsHumansMagnetic Resonance ImagingROC CurveSensitivity and SpecificitySpin Labels

Identifiers

PMID39570963
PMCPMC11581220

What OpenQuestion holds

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Registered trials

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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.