Evidence map›Paper›PMID 26288954›Full record

ArticleThe international journal of cardiovascular imaging2015

Subtraction coronary computed tomography in patients with severe calcification.

Makoto Amanuma, Takeshi Kondo, Tomonari Sano, Takako Sekine, Tomoya Takayanagi, Hideyuki Matsutani, Takehiro Arai, Hitomi Morita, Kazumasa Ishizaka, Kazumasa Arakita and 2 more

Abstract readEvaluation Study
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In one paragraph

Article in The international journal of cardiovascular imaging, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Post-processing calcium subtraction method to minimize stenosis-overestimation by blooming artifact.Technology and health care : official journal of the European Society for Engineering and Medicine · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Advances in CT Techniques in Vascular Calcification.Frontiers in cardiovascular medicine · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

12 authors.

Makoto AmanumaTakase Clinic, Takasaki, Gunma, Japan. ten@gunma-u.ac.jp.
Takeshi KondoJukokai Central Hospital, Miyoshi, Aichi, Japan.
Tomonari SanoTakase Clinic, Takasaki, Gunma, Japan.
Takako SekineTakase Clinic, Takasaki, Gunma, Japan.
Tomoya TakayanagiTakase Clinic, Takasaki, Gunma, Japan.
Hideyuki MatsutaniTakase Clinic, Takasaki, Gunma, Japan.
Takehiro AraiTakase Clinic, Takasaki, Gunma, Japan.
Hitomi MoritaTakase Clinic, Takasaki, Gunma, Japan.
Kazumasa IshizakaTakase Clinic, Takasaki, Gunma, Japan.
Kazumasa ArakitaToshiba Medical Systems Corporation, Otawara, Tochigi, Japan.
Akiko IwasaToshiba Medical Systems Corporation, Otawara, Tochigi, Japan.
Shinichi TakaseTakase Clinic, Takasaki, Gunma, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the clinical usefulness of subtraction coronary computed tomographic angiography (CCTA) in patients with severe calcification. A 320-row area detector CT system was used in this study. The subjects were 78 patients (47 men and 31 women, 739 years of age) with an Agatston score of >300 who were able to undergo prospective one-beat scanning during a single breath-hold. The CCTA findings were compared against invasive coronary angiography. The diagnostic capabilities of CCTA for the severely calcified segments with and without the additional information provided by subtraction CCTA were compared. Severe calcification was observed in 174 (31.9%) of the 546 segments, and non-assessable regions were observed in 74 (13.6%) of the segments. The addition of subtraction CCTA information improved the diagnostic accuracy for segments with severe calcification from 67.8 to 82.8% on a per-segment basis and from 70.1 to 82.1% on a per-patient basis, with non-assessable segments considered to be stenotic. When non-assessable segments were considered to be an incorrect diagnosis, the diagnostic accuracy was improved from 48.3 to 75.9% on a per-segment basis and from 43.3 to 79.1% on a per-patient basis. In addition, when evaluation was limited to non-assessable segments, subtraction CCTA provided a diagnostic accuracy of 81.1% when non-assessable segments were considered to be stenotic or 66.2% when non-assessable segments were considered to be an incorrect diagnosis. Subtraction CCTA improves the diagnostic capabilities of CCTA in patients with severe calcification.

Indexed as

Subtraction TechniqueAgedAged, 80 and overCoronary AngiographyCoronary Artery DiseaseCoronary VesselsFemaleHumansMaleMiddle AgedMultidetector Computed TomographyPredictive Value of TestsProspective StudiesReproducibility of ResultsSeverity of Illness IndexVascular CalcificationCalcificationCoronary arteryCoronary CT angiographySubtraction

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What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.