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  • Boita, JoanaDutch Expert Centre for Screening (LRCB),Radboud University Medical Center (author)

Development and content validity evaluation of a candidate instrument to assess image quality in digital mammography : A mixed-method study

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • Elsevier BV,2021

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:2a6778ef-91df-4a2c-8560-c24c0e9dac46
  • https://lup.lub.lu.se/record/2a6778ef-91df-4a2c-8560-c24c0e9dac46URI
  • https://doi.org/10.1016/j.ejrad.2020.109464DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Purpose: To develop a candidate instrument to assess image quality in digital mammography, by identifying clinically relevant features in images that are affected by lower image quality. Methods: Interviews with fifteen expert breast radiologists from five countries were conducted and analysed by using adapted directed content analysis. During these interviews, 45 mammographic cases, containing 44 lesions (30 cancers, 14 benign findings), and 5 normal cases, were shown with varying image quality. The interviews were performed to identify the structures from breast tissue and lesions relevant for image interpretation, and to investigate how image quality affected the visibility of those structures. The interview findings were used to develop tentative items, which were evaluated in terms of wording, understandability, and ambiguity with expert breast radiologists. The relevance of the tentative items was evaluated using the content validity index (CVI) and modified kappa index (k*). Results: Twelve content areas, representing the content of image quality in digital mammography, emerged from the interviews and were converted into 29 tentative items. Fourteen of these items demonstrated excellent CVI ≥ 0.78 (k* > 0.74), one showed good CVI < 0.78 (0.60 ≤ k* ≤ 0.74), while fourteen were of fair or poor CVI < 0.78 (k* ≤ 0.59). In total, nine items were deleted and five were revised or combined resulting in 18 items. Conclusions: By following a mixed-method methodology, a candidate instrument was developed that may be used to characterise the clinically-relevant impact that image quality variations can have on digital mammography.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Bolejko, AnettaLund University,Lunds universitet,Diagnostisk radiologi, Malmö,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Radiology Diagnostics, Malmö,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Skåne University Hospital(Swepub:lu)med-abj (author)
  • Zackrisson, SophiaLund University,Lunds universitet,Diagnostisk radiologi, Malmö,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Radiology Diagnostics, Malmö,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Skåne University Hospital(Swepub:lu)smi-sza (author)
  • Wallis, Matthew G.Cambridge University Hospitals NHS Foundation Trust,University of Cambridge (author)
  • Ikeda, Debra M.Stanford University (author)
  • Van Ongeval, ChantalUniversity Hospitals Leuven (author)
  • van Engen, Ruben E.Dutch Expert Centre for Screening (LRCB) (author)
  • Mackenzie, AlistairRoyal Surrey County Hospital (author)
  • Tingberg, AndersLund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Medical Radiation Physics, Malmö,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Skåne University Hospital(Swepub:lu)rfa-ati (author)
  • Bosmans, HildeUniversity Hospitals Leuven,Catholic University of Leuven (author)
  • Pijnappel, RuudUtrecht University,University Medical Center Utrecht,Dutch Expert Centre for Screening (LRCB) (author)
  • Sechopoulos, IoannisDutch Expert Centre for Screening (LRCB),Radboud University Medical Center (author)
  • Broeders, MireilleDutch Expert Centre for Screening (LRCB),Radboud University Medical Center (author)
  • Dutch Expert Centre for Screening (LRCB)Radboud University Medical Center (creator_code:org_t)

Related titles

  • In:European Journal of Radiology: Elsevier BV1340720-048X

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