Evidence map›Paper›PMID 26946323›Full record

ArticleJournal of magnetic resonance imaging : JMRI2016

Native myocardial longitudinal (T1 ) relaxation time: Regional, age, and sex associations in the healthy adult heart.

Samuli M O Rauhalammi, Kenneth Mangion, Pauline Hall Barrientos, David J A Carrick, Guillaume Clerfond, John McClure, Christie McComb, Aleksandra Radjenovic, Colin Berry

Open access · hybridAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 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. Article
  3. Article
  4. Age-, sex-, and segment-specific myocardial T1 and T2 reference values in a healthy cohort: a prospective single-center study.Clinical research in cardiology : official journal of the German Cardiac Society · 2026
    Article
  5. Reference ranges for myocardial native T1, T2, and extracellular volume at 5.0T cardiac magnetic resonance imaging in healthy adults.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2026
    Article
  6. Article
  7. Article
  8. A comparison of T1ρ with native T1 and T2 mapping for detecting edema in takotsubo cardiomyopathy.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Reference ranges of myocardial T1 and T2 mapping in healthy Chinese adults: a multicenter 3T cardiovascular magnetic resonance study.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

9 authors at 3 institutions in 1 country.

Samuli M O RauhalammiBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Kenneth MangionBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Pauline Hall BarrientosDepartment of Clinical Physics, Queen Elizabeth University Hospital, Glasgow, Glasgow, UK.
David J A CarrickBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Guillaume ClerfondBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
John McClureBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Christie McCombBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Aleksandra RadjenovicBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Colin BerryBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
University of Glasgow · GBGolden Jubilee National Hospital · GBQueen Elizabeth University Hospital · GB

Funding

British Heart Foundation FS/15/54/31639British Heart Foundation PG/11/2/28474British Heart Foundation PG/14/64/31043Chief Scientist Office SC01Medical Research Council MR/N003403/1
6 · The paper itself

Abstract

purposeTo use magnetic resonance imaging (MRI) at two field strengths to assess healthy adults' regional myocardial noncontrast (native) T1 relaxation time distribution, and global myocardial native T1 between sexes and across age groups. MATERIALS AND

methodsIn all, 84 healthy volunteers underwent MRI at 1.5T and 3.0T. T1 maps were acquired in three left ventricular short axis slices using an optimized modified Look-Locker inversion recovery investigational prototype sequence. T1 measurements in msec were calculated from 16 regions-of-interest, and a global T1 value from all evaluable segments per subject. Associations were assessed with a multivariate linear regression model.

resultsIn total, 1297 (96.5%) segments were evaluable at 1.5T and 1263 (94.0%) segments at 3.0T. Native T1 was higher in septal than lateral myocardium (1.5T: 956.3 ± 44.4 vs. 939.2 ± 54.2 msec; P < 0.001; 3.0T: 1158.2 ± 45.9 vs. 1148.9 ± 56.9 msec; P = 0.012). Native T1 decreased with increasing age in females but not in males. Among lowest age tertile (<33 years) global native T1 was higher in females than in males at 1.5T (960.0 ± 20.3 vs. 931.5 ± 22.2 msec, respectively; P = 0.003) and 3.0T (1166.5 ± 19.7 vs. 1130.2 ± 20.6 msec; P < 0.001). No sex differences were observed in upper age tertile (≥55 years) at 1.5T (937.7 ± 25.4 vs. 934.7 ± 22.3 msec; P = 0.762) or 3.0T (1153.0 ± 30.0 vs. 1132.3 ± 23.5 msec; P = 0.056). Association of global native T1 to age (P = 0.002) and sex (P < 0.001) was independent of field strength and body size.

conclusionIn healthy adults, native T1 values are highest in the ventricular septum. Global native T1 was inversely associated with age in women, but not in men. J. Magn. Reson. Imaging 2016;44:541-548.

Indexed as

Sex CharacteristicsAgingCardiac Imaging TechniquesFemaleHeart VentriclesHumansMagnetic Resonance ImagingMaleMiddle AgedReference ValuesReproducibility of ResultsSensitivity and SpecificityVentricular Function, Lefthealthy volunteerlongitudinal relaxation timemyocardiumnative T1T1 mapping

Identifiers

PMID26946323
PMCPMC5025725
OpenAlexW2295997811

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.