A computer-assisted system for handheld whole-breast ultrasonography
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu časopisecké články
Grantová podpora
TA04011392
Technologická Agentura České Republiky
Progres Q28/LF1
Univerzita Karlova v Praze
UNCE 204065
Univerzita Karlova v Praze
PubMed
30673925
DOI
10.1007/s11548-018-01909-7
PII: 10.1007/s11548-018-01909-7
Knihovny.cz E-zdroje
- Klíčová slova
- Breast, Cancer, Coverage, Screening, Tracking, Ultrasound,
- MeSH
- design vybavení MeSH
- diagnóza počítačová * MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mamografie metody MeSH
- nádory prsu diagnostické zobrazování MeSH
- počítače do ruky MeSH
- počítačové systémy MeSH
- počítačové zpracování obrazu MeSH
- prsy diagnostické zobrazování MeSH
- reprodukovatelnost výsledků MeSH
- software MeSH
- ultrasonografie prsů metody MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE: Breast ultrasonography (US) presents an alternative to mammography in young asymptomatic individuals and a complementary examination in screening of women with dense breasts. Handheld US is the standard-of-care, yet when used in whole-breast examination, no effort has been devoted to monitoring breast coverage and missed regions, which is the purpose of this study. METHODS: We introduce a computer-aided system assisting radiologists and US technologists in covering the whole breast with minimum alteration to the standard workflow. The proposed system comprises a standard US device, proprietary electromagnetic 3D tracking technology and software that combines US visual and tracking data to estimate a probe trajectory, total time spent in different breast segments, and a map of missed regions. A case study, which involved four radiologists (two junior and two senior) performing whole-breast ultrasound in 75 asymptomatic patients, was conducted to test the importance and relevance of the system. RESULTS: The mean process time per breast was [Formula: see text], with no statistically significant difference between the left and the right sides, and slightly longer examination time of junior radiologists. The process time density shows that central parts of the breast have better coverage compared to the periphery. Within the central part, missed regions of minimum detectable size of [Formula: see text] occur in [Formula: see text] of examinations, and non-negligible [Formula: see text] regions occur in [Formula: see text] of cases. CONCLUSION: The results of the case study indicate that missed regions are present in handheld whole-breast US, which renders the proposed system for tracking the probe position during examination a valuable tool for monitoring coverage.
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