Evidence map›Paper›PMID 25814658›Full record

ArticleAJNR. American journal of neuroradiology2015

Imaging the Parasinus Region with a Third-Generation Dual-Source CT and the Effect of Tin Filtration on Image Quality and Radiation Dose.

M M Lell, M S May, M Brand, A Eller, T Buder, E Hofmann, M Uder, W Wuest

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

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  9. Is ultra low-dose CT with tin filtration useful for examination of SI joints? Can it replace X-ray in diagnostics of sacroiliitis?Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia · 2022
    Article
  10. Navigation and non-navigation CT scan of the sinuses: comparison of the effective doses of radiation in children and adults.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2021
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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

8 authors at 4 institutions in 3 countries.

M M LellFrom the Departments of Radiology (M.M.L., M.S.M., M.B., A.E., M.U., W.W.) Imaging Science Institute (M.M.L., M.U.), University Erlangen, Erlangen, Germany. michael.lell@uk-erlangen.de.
M S MayFrom the Departments of Radiology (M.M.L., M.S.M., M.B., A.E., M.U., W.W.).
M BrandFrom the Departments of Radiology (M.M.L., M.S.M., M.B., A.E., M.U., W.W.).
A EllerFrom the Departments of Radiology (M.M.L., M.S.M., M.B., A.E., M.U., W.W.).
T BuderDepartment I (T.B.), Institute of Anatomy.
E HofmannOrthodontics and Orofacial Orthopedics (E.H.).
M UderFrom the Departments of Radiology (M.M.L., M.S.M., M.B., A.E., M.U., W.W.) Imaging Science Institute (M.M.L., M.U.), University Erlangen, Erlangen, Germany.
W WuestFrom the Departments of Radiology (M.M.L., M.S.M., M.B., A.E., M.U., W.W.).
Maine Farmland Trust · USFriedrich-Alexander-Universität Erlangen-Nürnberg · DEAmerican Association of Orthodontists · USHesco (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeCT is the imaging technique of choice in the evaluation of midface trauma or inflammatory disease. We performed a systematic evaluation of scan protocols to optimize image quality and radiation exposure on third-generation dual-source CT. MATERIALS AND

methodsCT protocols with different tube voltage (70-150 kV), current (25-300 reference mAs), prefiltration, pitch value, and rotation time were systematically evaluated. All images were reconstructed with iterative reconstruction (Advanced Modeled Iterative Reconstruction, level 2). To individually compare results with otherwise identical factors, we obtained all scans on a frozen human head. Conebeam CT was performed for image quality and dose comparison with multidetector row CT. Delineation of important anatomic structures and incidental pathologic conditions in the cadaver head was evaluated.

resultsOne hundred kilovolts with tin prefiltration demonstrated the best compromise between dose and image quality. The most dose-effective combination for trauma imaging was Sn100 kV/250 mAs (volume CT dose index, 2.02 mGy), and for preoperative sinus surgery planning, Sn100 kV/150 mAs (volume CT dose index, 1.22 mGy). "Sn" indicates an additional prefiltration of the x-ray beam with a tin filter to constrict the energy spectrum. Exclusion of sinonasal disease was possible with even a lower dose by using Sn100 kV/25 mAs (volume CT dose index, 0.2 mGy).

conclusionsHigh image quality at very low dose levels can be achieved by using a Sn100-kV protocol with iterative reconstruction. The effective dose is comparable with that of conventional radiography, and the high image quality at even lower radiation exposure favors multidetector row CT over conebeam CT.

Indexed as

Cone-Beam Computed TomographyHumansImage Processing, Computer-AssistedParanasal SinusesRadiation DosageTinTin

Identifiers

PMID25814658
PMCPMC7965271
OpenAlexW2138391661

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.