Evidence map›Paper›PMID 30370941›Full record

ArticleMagnetic resonance in medicine2019

Whole-heart coronary MR angiography using a 3D cones phyllotaxis trajectory.

Mario O Malavé, Corey A Baron, Nii Okai Addy, Joseph Y Cheng, Phillip C Yang, Bob S Hu, Dwight G Nishimura

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Magnetic resonance in medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Automated detection of cardiac rest period for trigger delay calculation for image-based navigator coronary magnetic resonance angiography.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2023
    Article
  4. Article
  5. Cardiac MR: From Theory to Practice.Frontiers in cardiovascular medicine · 2022
    Review
  6. Review
  7. Article
  8. Combined TMagnetic resonance in medicine · 2020
    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

7 authors.

Mario O MalavéMagnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California.
Corey A BaronMagnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California.
Nii Okai AddyMagnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California.
Joseph Y ChengMagnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California.
Phillip C YangCardiovascular Medicine, Stanford University, Stanford, California.
Bob S HuMagnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California.
Dwight G NishimuraMagnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California.

Funding

Coronary Magnetic Resonance AngiographyR01HL127039 · NHLBI · STANFORD UNIVERSITY · PI NISHIMURA, DWIGHT · 2015 to 2023
$3.0M
TRAINING IN CARDIAC MAGNETIC RESONANCE IMAGING (REVISED)T32HL007846 · NHLBI · STANFORD UNIVERSITY · PI NISHIMURA, DWIGHT · 1997 to 2016
$1.3M
Patient Oriented Research in Cardiovascular RegenerationK24HL130553 · NHLBI · STANFORD UNIVERSITY · PI YANG, PHILLIP CHUNG-MING · 2016 to 2020
$584k
GE HealthcareNational Science FoundationNHLBI NIH HHS K24 HL130553NHLBI NIH HHS R01 HL127039NHLBI NIH HHS T32 HL007846NIH HHS T32HL007846NSF
6 · The paper itself

Abstract

purposeTo develop a 3D cones steady-state free precession sequence with improved robustness to respiratory motion while mitigating eddy current artifacts for free-breathing whole-heart coronary magnetic resonance angiography.

methodThe proposed sequence collects cone interleaves using a phyllotaxis pattern, which allows for more distributed k-space sampling for each heartbeat compared to a typical sequential collection pattern. A Fibonacci number of segments is chosen to minimize eddy current effects with the trade-off of an increased number of acquisition heartbeats. For verification, phyllotaxis-cones is compared to sequential-cones through simulations, phantom studies, and in vivo coronary scans with 8 subjects using 2D image-based navigators for retrospective motion correction.

resultsSimulated point spread functions and moving phantom results show less coherent motion artifacts for phyllotaxis-cones compared to sequential-cones. Assessment of the right and left coronary arteries using reader scores and the image edge profile acutance vessel sharpness metric indicate superior image quality and sharpness for phyllotaxis-cones.

conclusionPhyllotaxis 3D cones results in improved qualitative image scores and coronary vessel sharpness for free-breathing whole-heart coronary magnetic resonance angiography compared to standard sequential ordering when using a steady-state free precession sequence.

Indexed as

Coronary AngiographyMagnetic Resonance AngiographyAlgorithmsArtifactsComputer SimulationCoronary VesselsFemaleHealthy VolunteersHeartHumansImage EnhancementImage Processing, Computer-AssistedImaging, Three-DimensionalMaleMotionPhantoms, Imaging3D cones trajectorycoronary MRAfree-breathingmotion artifactsphyllotaxis

Identifiers

PMID30370941
PMCPMC6715422

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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.