Evidence map›Paper›PMID 27240454›Full record

ArticleEuropean radiology2017

Using 80 kVp on a 320-row scanner for hepatic multiphasic CT reduces the contrast dose by 50 % in patients at risk for contrast-induced nephropathy.

Narumi Taguchi, Seitaro Oda, Daisuke Utsunomiya, Yoshinori Funama, Takeshi Nakaura, Masanori Imuta, Sadahiro Yamamura, Hideaki Yuki, Masafumi Kidoh, Kenichiro Hirata and 4 more

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in European radiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05831943 (Low Tube Voltage Kidney Computed Tomography Using Low Concentration Iodine Contrast Agent), which is not on this map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% 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.

NCT05831943 unknown statusnot on this mapstarted 2023, after this paper: background citation

Low Tube Voltage Kidney Computed Tomography Using Low Concentration Iodine Contrast Agent: A Comparison Study With Conventional CT Protocol

Typeobservational_patient_registrySponsorSeoul National University HospitalRan2023 to 2023Enrolled88ConditionsRenal DiseaseArmsContrast enhanced Kidney CT
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

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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

14 authors at 2 institutions in 1 country.

Narumi TaguchiDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Seitaro OdaDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan. seisei0430@nifty.com.
Daisuke UtsunomiyaDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Yoshinori FunamaDepartment of Medical Physics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan.
Takeshi NakauraDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Masanori ImutaDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Sadahiro YamamuraDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Hideaki YukiDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Masafumi KidohDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Kenichiro HirataDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Tomohiro NamimotoDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Masahiro HatemuraDepartment of Central Radiology, Kumamoto University Hospital, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan.
Noriyuki KaiDepartment of Central Radiology, Kumamoto University Hospital, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan.
Yasuyuki YamashitaDepartment of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuou-ku, Kumamoto, 860-8556, Japan.
Kumamoto University · JPKumamoto University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe evaluated the effects of a low contrast material (CM) dose protocol using 80-kVp on the image quality of hepatic multiphasic CT scans acquired on a 320-row CT scanner.

methodsWe scanned 30 patients with renal insufficiency (eGFR < 45 mL/min/1.73 m

resultsImage noise and contrast enhancement were equivalent for the two protocols. There was no significant difference in the CNR of all anatomic sites and in the visual scores for overall image quality. The CTDI

conclusionHepatic multiphase CT using 80-kVp on a 320-row CT scanner allowed for a decrease in the CM dose and a reduction in the radiation dose without image quality degradation in patients with renal insufficiency. KEY POINTS: • The 80-kVp CT protocol enabled reduction of contrast dose by 50 % • The 80-kVp CT protocol reduced the radiation dose by 25-33 % • There was no degradation in the image quality of the 80-kVp protocol.

Indexed as

Radiation DosageRenal InsufficiencyAcute Kidney InjuryAgedAged, 80 and overCase-Control StudiesContrast MediaFemaleHumansLiverMaleMiddle AgedProspective StudiesRadiographic Image EnhancementRadiographic Image Interpretation, Computer-AssistedTomography, X-Ray ComputedContrast Media320-row CT80 kVpContrast-induced nephropathyHepatic multiphasic CTImage quality

Identifiers

PMID27240454
OpenAlexW2417054424

What OpenQuestion holds

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Registered trials

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.