Evidence map›Paper›PMID 34737922›Full record

ArticleQuantitative imaging in medicine and surgery2021

Fractional flow reserve for coronary stenosis assessment derived from fusion of intravascular ultrasound and X-ray angiography.

Jun Jiang, Li Feng, Changling Li, Yongqing Xia, Jingsong He, Xiaochang Leng, Liang Dong, Xinyang Hu, Jian'an Wang, Jianping Xiang

Open access · diamondAbstract read
In one paragraph

Article in Quantitative imaging in medicine and surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 5% of its field
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

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  8. [Research progress on image-based calculation of coronary artery fractional flow reserve].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2023
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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

10 authors at 1 institution in 1 country.

Jun JiangDepartment of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Li FengArteryFlow Technology Co., Ltd., Hangzhou, China.
Changling LiDepartment of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Yongqing XiaArteryFlow Technology Co., Ltd., Hangzhou, China.
Jingsong HeArteryFlow Technology Co., Ltd., Hangzhou, China.
Xiaochang LengArteryFlow Technology Co., Ltd., Hangzhou, China.
Liang DongDepartment of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Xinyang HuDepartment of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Jian'an WangDepartment of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Jianping XiangArteryFlow Technology Co., Ltd., Hangzhou, China.
Second Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntravascular ultrasound (IVUS) provides good insight into lumen boundary and plaques; however, it is still difficult to detect functionally significant stenosis from IVUS images for the guidance of coronary percutaneous intervention (PCI). This study aimed to develop a novel method to estimate fractional flow reserve (FFR) value for determining the functional significance of coronary artery disease through the fusion of IVUS and X-ray angiographic images.

methodsWe developed a novel approach to 3D vessel reconstruction by integrating IVUS with X-ray angiographic images. Based on the reconstructed geometry and the inlet flow derived from the thrombolysis in myocardial infarction (TIMI) frame count, a simplified fluid dynamics equation was established to compute the pressure drop and IVUS-derived FFR (AccuFFRivus) was subsequently obtained. To validate the feasibility and performance of this IVUS-based FFR method, we performed AccuFFRivus calculations on 32 coronary vessels with invasive FFR as the reference standard.

resultsGreat correlation (r=0.86, P<0.001) was observed between AccuFFRivus and FFR. The area under the receiver-operating characteristic curve (AUC) was higher for AccuFFRivus than minimal lumen area (MLA, <4 mm

conclusionsAccuFFRivus is a novel method for hybridizing IVUS and X-ray angiographic images to identify functionally significant stenosis with FFR ≤0.80. The good diagnostic performance from the initial validation study demonstrates the potential for clinical utilization of physiologically guided decision-making. Further validation is required in future studies with a large number of cases.

Indexed as

coronary vessel reconstructionfractional flow reserve (FFR)Intravascular ultrasound (IVUS)X-ray angiography

Identifiers

PMID34737922
PMCPMC8511737
OpenAlexW3180131843

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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.