Evidence map›Paper›PMID 32918566›Full record

ArticleSkeletal radiology2021

Metal artifacts of hip arthroplasty implants at 1.5-T and 3.0-T: a closer look into the B

Iman Khodarahmi, John Kirsch, Gregory Chang, Jan Fritz

Abstract read
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In one paragraph

Article in Skeletal radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.3field-weighted citation impact, top 16% 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

3 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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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

4 authors at 2 institutions in 1 country.

Iman KhodarahmiDepartment of Radiology, New York University Grossman School of Medicine, 660 1st Ave, 3rd Floor, New York, NY, 10016, USA.
John KirschDepartment of Radiology, Massachusetts General Hospital, Boston, MA, USA.
Gregory ChangDepartment of Radiology, New York University Grossman School of Medicine, 660 1st Ave, 3rd Floor, New York, NY, 10016, USA.
Jan FritzDepartment of Radiology, New York University Grossman School of Medicine, 660 1st Ave, 3rd Floor, New York, NY, 10016, USA. jan.fritz@nyulangone.org.ORCID http://orcid.org/0000-0003-4456-3043
New York University · USMassachusetts General Hospital · US

Funding

International Skeletal Society n/a
6 · The paper itself

Abstract

objectiveTo evaluate the effect of circular polarization (CP) and elliptical polarization (EP) of the B MATERIAL AND

methodsIn vitro Ti and CoCr total hip arthroplasty implants were evaluated using high transmit and receive bandwidth turbo spin echo (HBW-TSE) and slice encoding for metal artifact correction (SEMAC) metal artifact reduction techniques. Each technique was implemented at 1.5-T, which only allows for CP of B

resultsIn the acetabular cup and femoral neck, 1.5-T CP achieved smaller artifact sizes than 3.0-T CP (28-29% on HBW-TSE, p = 0.002-0.005; 17-34% on SEMAC, p = 0.019-0.102) and 3.0-T EP (25-28% on HBW-TSE, p = 0.010-0.011; 14-36% on SEMAC, p = 0.058-0.135) techniques. In the femoral stem region, 3.0-T EP achieved more efficient artifact suppression than 3.0-T CP (HBW-TSE 44-45%, p < 0.001-0.022; SEMAC 76-104%, p < 0.001-0.022) and 1.5-T CP (HBW-TSE 76-96%, p < 0.001-0.003; SEMAC 138-173%, p = 0.003-0.005) techniques.

conclusionDespite slightly superior metal reduction ability of the 1.5-T in the region of the acetabular cup and prosthesis neck, 3.0-T MRI of hip arthroplasty implants using elliptically polarized RF pulses may overall be more effective in reducing metal artifacts than the current standard 1.5-T MRI techniques, which by default implements circularly polarized RF pulses.

Indexed as

Arthroplasty, Replacement, HipArtifactsHumansMagnetic Resonance ImagingMetalsProstheses and ImplantsMetals3.0-THip arthroplastyMetal artifactMRIPolarizationRadiofrequency pulse

Identifiers

PMID32918566
OpenAlexW3086875119

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.