Comparison between software volumetric breast density estimates in breast tomosynthesis and digital mammography images in a large public screening cohort

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Förnvik, DanielLund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Malmö,Lund University Research Groups,Skåne University Hospital (författare)

Comparison between software volumetric breast density estimates in breast tomosynthesis and digital mammography images in a large public screening cohort

Artikel/kapitelEngelska2019

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2018-06-25
Springer Science and Business Media LLC,2019

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LIBRIS-ID:oai:lup.lub.lu.se:82f10515-e9c8-4744-832e-786eef84460b
https://lup.lub.lu.se/record/82f10515-e9c8-4744-832e-786eef84460bURI
https://doi.org/10.1007/s00330-018-5582-0DOI

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Språk:engelska
Sammanfattning på:engelska

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Objectives: To compare software estimates of volumetric breast density (VBD) based on breast tomosynthesis (BT) projections to those based on digital mammography (DM) images in a large screening cohort, the Malmö Breast Tomosynthesis Screening Trial (MBTST). Methods: DM and BT images of 9909 women (enrolled 2010–2015) were retrospectively analysed with prototype software to estimate VBD. Software calculation is based on a physics model of the image acquisition process and incorporates the effect of masking in DM based on accumulated dense tissue areas. VBD (continuously and categorically) was compared between BT [central projection (mediolateral oblique view (MLO)] and two-view DM, and with radiologists’ BI-RADS density 4th ed. scores. Agreement and correlation were investigated with weighted kappa (κ), Spearman’s correlation coefficient (r), and Bland–Altman analysis. Results: There was a high correlation (r = 0.83) between VBD in DM and BT and substantial agreement between the software breast density categories [observed agreement, 61.3% and 84.8%; κ = 0.61 and ĸ = 0.69 for four (a/b/c/d) and two (fat involuted vs. dense) density categories, respectively]. There was moderate agreement between radiologists’ BI-RADS scores and software density categories in DM (ĸ = 0.55) and BT (ĸ = 0.47). Conclusions: In a large public screening setting, we report a substantial agreement between VBD in DM and BT using software with special focus on masking effect. This automated and objective mode of measuring VBD may be of value to radiologists and women when BT is used as the primary breast cancer screening modality. Key Points: • There was a high correlation between continuous volumetric breast density in DM and BT.• There was substantial agreement between software breast density categories (four groups) in DM and BT; with clinically warranted binary software breast density categories, the agreement increased markedly.• There was moderate agreement between radiologists’ BI-RADS scores and software breast density categories in DM and BT.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Radiologi och bildbehandling hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Radiology, Nuclear Medicine and Medical Imaging hsv//eng
Breast neoplasms
Diagnostic imaging
Digital breast tomosynthesis
Mammography
Mass screening

Biuppslag (personer, institutioner, konferenser, titlar ...)

Förnvik, HannieLund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Malmö,Lund University Research Groups,Skåne University Hospital(Swepub:lu)med-hap (författare)
Fieselmann, AndreasSiemens Healthineers (författare)
Lång, KristinaLund University,Lunds universitet,Diagnostisk radiologi, Malmö,Forskargrupper vid Lunds universitet,Radiology Diagnostics, Malmö,Lund University Research Groups,Skåne University Hospital(Swepub:lu)med-ksd (författare)
Sartor, HannaLund University,Lunds universitet,Diagnostisk radiologi, Malmö,Forskargrupper vid Lunds universitet,Radiology Diagnostics, Malmö,Lund University Research Groups,Skåne University Hospital(Swepub:lu)med-hso (författare)
Medicinsk strålningsfysik, MalmöForskargrupper vid Lunds universitet (creator_code:org_t)

Sammanhörande titlar

Ingår i:European Radiology: Springer Science and Business Media LLC29:1, s. 330-3360938-79941432-1084

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Av författaren/redakt...: Förnvik, Daniel; Förnvik, Hannie; Fieselmann, Andr ...; Lång, Kristina; Sartor, Hanna

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Radiologi och bi ...

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Av lärosätet: Lunds universitet

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