Evidence map›Paper›PMID 37171489›Full record

ArticleEuropean radiology2023

Valid and reliable diagnostic performance of dual-energy CT in anterior cruciate ligament rupture.

Di Liu, Ping Hu, Zi-Jun Cai, Wen-Hao Lu, Lin-Yuan Pan, Xu Liu, Xian-Jing Peng, Yu-Sheng Li, Wen-Feng Xiao

Open access · hybridAbstract read
In one paragraph

Article in European radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 18% 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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

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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

9 authors at 2 institutions in 1 country.

Di Liu *Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Ping Hu *Department of Radiology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Zi-Jun CaiDepartment of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Wen-Hao LuDepartment of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Lin-Yuan PanDepartment of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Xu LiuDepartment of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Xian-Jing PengDepartment of Radiology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China. pengxianjing@csu.edu.cn.
Yu-Sheng LiDepartment of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China. liyusheng@csu.edu.cn.
Wen-Feng XiaoDepartment of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China. xiaowenfeng@csu.edu.cn.
Xiangya Hospital Central South University · CNCentral South University · CN

Funding

CMA▪Young and Middle-aged Doctors Outstanding Development Program-Osteoporosis Specialized Scientific Research Fund Project G-X-2019-1107-12Fundamental Research Funds for the Central Universities of Central South University 2021zzts1030Fundamental Research Funds for the Central Universities of Central South University 2021zzts1037Innovation-Driven Project of Central South University 2020CX045Key Program of Health Commission of Hunan Province 20201902National Clinical Research Center for Geriatric Disorders No. 2021KFJJ02National Clinical Research Center for Geriatric Disorders Xiangya HospitalNational Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation 2021-NCRC-CXJJ-PY-40National Key R&D Program of China 2019YFA0111900National Natural Science Foundation of China 81874030National Natural Science Foundation of China 82072506National Natural Science Foundation of China 82272611Provincial Clinical Medical Technology Innovation Project of Hunan 2020SK53709Wu Jieping Medical Foundation 320.6750.2020-03-14
6 · The paper itself

Abstract

objectivesTo determine whether dual-energy CT (DECT) can be used to accurately and reliably detect anterior cruciate ligament (ACL) rupture. MATERIALS AND

methodsParticipants with unilateral ACL rupture were prospectively enrolled, and the bilateral knees were scanned by DECT. A tissue-specific mapping algorithm was applied to improve the visualization of the ACLs. The 80-keV CT value, mixed-keV CT value, electron density (Rho), and effective atomic number (Z

resultsFifty-one participants (mean age, 27.0 ± 8.7 years; 31 men) were enrolled. Intact and torn ACLs were explicitly differentiated on color-coded DECT images. The 80-keV CT value, mixed-keV CT value, and Rho were significantly lower for the torn ACLs than for the intact ACLs (p < 0.001). The optimal cutoff values were an 80-keV CT value of 61.8 HU, a mixed-keV CT value of 60.9 HU, and a Rho of 51.8 HU, with AUCs of 98.0% (95% CI: 97.0-98.9%), 99.2% (95% CI: 98.6-99.7%), and 99.8% (95% CI: 99.6-100.0%), respectively. Overall, DECT had almost perfect reliability and validity in detecting ACL integrity (sensitivity = 97.1% [95% CI: 88.1-99.8%]; specificity = 98.0% [95% CI: 89.5-99.9%]; PPV = 98.0% [95% CI: 93.0-99.8%]; NPV = 97.1% [95% CI: 91.7-99.4%]; accuracy = 97.5% [95% CI: 94.3-99.2%]). There was no evidence of a difference between MRI and DECT in the diagnostic performance (p > 0.99).

conclusionDECT has excellent diagnostic accuracy and reliability in qualitatively and quantitatively diagnosing ACL rupture. CLINICAL RELEVANCE STATEMENT: DECT could validly and reliably diagnose ACL rupture using both qualitative and quantitative methods, which may become a promising substitute for MRI to evaluate the integrity of injured ACLs and the maturity of postoperative ACL autografts. KEY POINTS: • On color-coded DECT images, an uncolored ACL was a reliable sign for qualitatively diagnosing ACL rupture. • The 80-keV CT value, mixed-keV CT value, and Rho were significantly lower for the torn ACLs than for the intact ACLs, which contributed to the quantitative diagnosis of ACL rupture. • DECT had an almost perfect diagnostic performance for ACL rupture, and diagnostic capability was comparable between MRI and DECT.

Indexed as

Anterior Cruciate LigamentAnterior Cruciate Ligament InjuriesAdolescentAdultHumansMaleReproducibility of ResultsSensitivity and SpecificityTomography, X-Ray ComputedYoung AdultAnterior cruciate ligamentDiagnosisRadiography, dual-energy scanned projectionRuptureTomography, x-ray computed

Identifiers

PMID37171489
PMCPMC10598075
OpenAlexW4376223914

What OpenQuestion holds

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LicenceCC BY
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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.