Evidence map›Paper›PMID 33710499›Full record

ArticleRadiological physics and technology2021

Spatial and temporal variations of flip-angle distributions in the human brain using an eight-channel parallel transmission system at 7T: comparison of three radiofrequency excitation methods.

Tsuyoshi Matsuda, Ikuko Uwano, Yuji Iwadate, Kunihiro Yoshioka, Makoto Sasaki

Abstract read
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In one paragraph

Article in Radiological physics and technology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.1field-weighted citation impact, top 55% 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

0 citing papers in PubMed, 2 citations in OpenAlex.

No citing paper in PubMed yet.

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

5 authors at 1 institution in 1 country.

Tsuyoshi MatsudaDivision of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, 1-1-1 Idaidori Yahaba, Iwate, 028-3694, Japan. tsuyoshi@iwate-med.ac.jp.ORCID http://orcid.org/0000-0001-8914-8236
Ikuko UwanoDivision of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, 1-1-1 Idaidori Yahaba, Iwate, 028-3694, Japan.
Yuji IwadateMR Applications and Workflow, GE Healthcare Japan Corporation, 4-7-127 Asahigaoka, Hino, Tokyo, 191-0065, Japan.
Kunihiro YoshiokaDepartment of Radiology, School of Medicine, Iwate Medical University, 2-1-1 Idaidori Yahaba, Iwate, 028-3695, Japan.
Makoto SasakiDivision of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, 1-1-1 Idaidori Yahaba, Iwate, 028-3694, Japan.
Iwate Medical University · JP

Funding

Japan Society for the Promotion of Science 18H00483Ministry of Education S1491001
6 · The paper itself

Abstract

We investigated the spatial and temporal variations of flip-angle (FA) distributions in the human brain from multiple scans, using an eight-channel parallel transmission (pTx) system at 7T. Nine healthy volunteers were scanned in five sessions using three radiofrequency excitation techniques each time: circular polarization (CP), static pTx, and dynamic pTx. We calculated the coefficients of variation of the FA values within the brain area to evaluate the variations, and the maximum intersession differences in the FA values (D

Indexed as

BrainMagnetic Resonance ImagingRadio WavesAlgorithmsHumansFlip-angle variationMagnetic resonance imagingParallel transmissionUltrahigh field

Identifiers

PMID33710499
OpenAlexW3134456149

What OpenQuestion holds

Textmetadata
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.