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Feasibility study using multifocal Doppler twinkling artifacts to detect suspicious microcalcifications in ex vivo specimens of breast cancer on US

 Vivian Youngjean Park  ;  Jinbum Kang  ;  Kanghee Han  ;  Ilseob Song  ;  Kang-Sik Kim  ;  Se Jin Nam  ;  Ga Ram Kim  ;  Jung Hyun Yoon  ;  Won Seuk Jang  ;  Yangmo Yoo  ;  Min Jung Kim 
 SCIENTIFIC REPORTS, Vol.12(1) : 2857, 2022-02 
Journal Title
Issue Date
Adult ; Aged ; Artifacts* ; Breast Neoplasms / diagnostic imaging* ; Calcinosis / diagnostic imaging* ; Feasibility Studies ; Female ; Humans ; Mammography / methods* ; Middle Aged ; Prospective Studies ; Specimen Handling / methods* ; Ultrasonography, Doppler / methods*
Multifocal Doppler twinkling artifact (MDTA) imaging has shown high detection rates of microcalcifications in phantom studies. We aimed to evaluate its performance in detecting suspicious microcalcifications in comparison with mammography by using ex vivo breast cancer specimens. We prospectively included ten women with breast cancer that presented with calcifications on mammography. Both digital specimen mammography and MDTA imaging were performed for ex vivo breast cancer specimens on the day of surgery. Five breast radiologists marked cells that included suspicious microcalcifications (referred to as 'positive cell') on specimen mammographic images using a grid of 5-mm cells. Cells that were marked by at least three readers were considered as 'consensus-positive'. Matched color Doppler twinkling artifact (CDTA) signals were compared between reconstructed US-MDTA projection images and mammographic images. The median detection rate for each case was 74.7% for positive cells and 96.7% for consensus-positive cells. Of the 10 cases, 90% showed a detection rate of ≥ 80%, with 50% of cases showing a 100% detection rate for consensus-positive cells. The proposed MDTA imaging method showed high performance for detecting suspicious microcalcifications in ex vivo breast cancer specimens, and may be a feasible approach for detecting suspicious breast microcalcifications with US.
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1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ga Ram(김가람) ORCID logo https://orcid.org/0000-0002-4481-5792
Kim, Min Jung(김민정) ORCID logo https://orcid.org/0000-0003-4949-1237
Nam, Se Jin(남세진)
Park, Vivian Youngjean(박영진) ORCID logo https://orcid.org/0000-0002-5135-4058
Yoon, Jung Hyun(윤정현) ORCID logo https://orcid.org/0000-0002-2100-3513
Chang, Won Seok(장원석) ORCID logo https://orcid.org/0000-0002-4925-3549
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