Evidence map›Paper›PMID 30089499›Full record

ArticleJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2018

Extracellular volume fraction measurements derived from the longitudinal relaxation of blood-based synthetic hematocrit may lead to clinical errors in 3 T cardiovascular magnetic resonance.

Yongning Shang, Xiaochun Zhang, Xiaoyue Zhou, Jian Wang

Open access · goldAbstract readValidation Study
In one paragraph

Article in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Society for Cardiovascular Magnetic Resonance reference values ("normal values") in cardiovascular magnetic resonance: 2025 update.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2025
    Guideline
  2. Guideline
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  11. Quantification of myocardial extracellular volume without blood sampling.European heart journal. Imaging methods and practice · 2023
    Article
  12. Article
  13. Article
  14. Reference ranges ("normal values") for cardiovascular magnetic resonance (CMR) in adults and children: 2020 update.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2020
    Review
  15. Is a timely assessment of the hematocrit necessary for cardiovascular magnetic resonance-derived extracellular volume measurements?Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2020
    Article
  16. Journal of Cardiovascular Magnetic Resonance: 2017/2018 in review.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2019
    Review
  17. Review
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

4 authors at 2 institutions in 1 country.

Yongning ShangDepartment of Radiology, Southwest Hospital, Third Military Medical University, Gaotanyan Street No. 30, Shapingba district, Chongqing, China.
Xiaochun ZhangDepartment of Radiology, Southwest Hospital, Third Military Medical University, Gaotanyan Street No. 30, Shapingba district, Chongqing, China. zxcylxyr@163.com.
Xiaoyue ZhouMR Collaboration, Siemens Healthcare Ltd., Shanghai, China.
Jian WangDepartment of Radiology, Southwest Hospital, Third Military Medical University, Gaotanyan Street No. 30, Shapingba district, Chongqing, China. wangjian_811@yahoo.com.ORCID 0000-0003-1210-0837
Army Medical University · CNSiemens (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe extracellular volume (ECV), derived from cardiovascular magnetic resonance (CMR) T1 mapping, is a biomarker of the extracellular space in the myocardium. The hematocrit (HCT), measured from venipuncture, is required for ECV measurement. We test the clinic values of synthetic ECV, which is derived from the longitudinal relaxation of blood-based (T1

methodsA total of 226 subjects with CMR T1 mapping and HCT measurement taken on the same day as the CMR were retrospectively enrolled and randomly split into derivation (n = 121) and validation (n = 105) groups, comprising healthy subjects (n = 45), type 2 diabetes mellitus (T2DM) patients (n = 60), hypertrophic cardiomyopathy (HCM) patients (n = 93), and 28 other patients. Correlation of T1

resultsRegression between the HCTm and 1/T1

conclusionsECVsyn derived from HCTsyn may lead to clinical errors in 3 T CMR, especially for patients who have only a subtle elevation in ECV.

Indexed as

HematocritMagnetic Resonance Imaging, CineAdultFeasibility StudiesFemaleHeart DiseasesHumansMaleMiddle AgedMyocardiumPredictive Value of TestsReproducibility of ResultsRetrospective Studies3 T cardiovascular magnetic resonanceExtracellular volume fractionSynthetic hematocritT1 mapping

Identifiers

PMID30089499
PMCPMC6083590
OpenAlexW2886884309

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.