Vivianne Freitas, University of Toronto

Research

Read how they describe their research on their University of Toronto profile.

Latest papers

Breast Cancer Surgery Wait Times and COVID-19: A Canadian Population-Based Analysis.
Annals of surgical oncology · 2026
Perspectives from a multi-stakeholder workshop for implementing a risk-stratified breast cancer screening program in Canada
Communications Medicine · 2026
ASO Visual Abstract: Breast Cancer Surgery Wait Times and COVID-19-A Canadian Population-Based Analysis.
Annals of surgical oncology · 2026

All 38 publications

Latest funding

Rebooting Sensitivity to Checkpoint Blockade Therapy in TNBC (RESETT)
CIHR · 2026 · Co-investigator
$872,100
LOBCAN: a prospective, multi-centre cohort study of treatment and outcomes for invasive LOBular breast carcinoma in CANada.
CIHR · 2024 · Co-investigator
$546,976
The Impact of COVID-19 on the Diagnosis and Treatment of Breast Cancer (TICTOC): a population-based study
CIHR · 2021 · Co-investigator
$296,920

All 4 grants and awards

38 publications.

01

Breast Cancer Surgery Wait Times and COVID-19: A Canadian Population-Based Analysis.

Ko G, Li Q, Liu N, Amir E, Covelli AM, Eskander A, Freitas V, Koch CA, Ramruthan J, Reel E, Roberts A, Zhong T, Cil TD

Annals of surgical oncology20261 citationsOpen Access

DOI: 10.1245/s10434-025-19029-3 PMID: 41580537

02

Perspectives from a multi-stakeholder workshop for implementing a risk-stratified breast cancer screening program in Canada

Safieh-Garabedian N, Antoniou AC, Brooks J, Carroll J, Cavaillé M, Chiquette J, DeCoteau M, Doyle G, Eisen A, Eloy L

Communications Medicine2026Open Access

DOI: 10.1038/s43856-026-01582-x

03

ASO Visual Abstract: Breast Cancer Surgery Wait Times and COVID-19-A Canadian Population-Based Analysis.

Ko G, Li Q, Liu N, Amir E, Covelli AM, Eskander A, Freitas V, Koch CA, Ramruthan J, Reel E, Roberts A, Zhong T, Cil TD

Annals of surgical oncology2026

DOI: 10.1245/s10434-026-19185-0 PMID: 41772249

04

Modelling image quality over extended [18F]FDG uptake times for low-dose positron emission mammography

Elliott De Benetti, Tobias Preckel, Apichart Linhananta, Brandon Baldassi, Borys Komarov, Harutyun Poladyan, Vivianne Freitas, Alla Reznik, Oleksandr Bubon

Frontiers in Oncology2026Open Access

DOI: 10.3389/fonc.2026.1880803

05

Joint BrEast CAncer & CardiOvascular ScreeniNg: BEACON Study to Assess Opportunistic Cardiovascular Screening Using Breast Arterial Calcification on Mammography.

McKee H, Bianco T, Zaki-Metias K, Freitas V, Ghai S, Hanneman K, Seely JM, Yong-Hing C, Abdel-Qadir H, Harvey PJ, Nguyen ET

Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes20257 citationsOpen Access

DOI: 10.1177/08465371251337022 PMID: 40317168

06

Impact of the COVID-19 pandemic on breast cancer surgeries in a Canadian population.

Ko G, Li Q, Liu N, Amir E, Covelli A, Eskander A, Freitas V, Anne Koch C, Ramruthan J, Reel E, Roberts A, Zhong T, Cil TD

Breast cancer research and treatment20256 citationsOpen Access

DOI: 10.1007/s10549-024-07547-9 PMID: 39543062

07

Streamlining diagnosis of melanoma metastasis to the breast: A case report emphasizing distinctive MRI features as crucial diagnostic tool.

Chan A, Berman H, Zaid SK, Ghai S, Kulkarni S, Freitas V

Radiology case reports2025Senior author

DOI: 10.1016/j.radcr.2025.04.081 PMID: 40492160

08

Optimizing breast MRI diagnosis: the Kaiser Score's impact on reducing unnecessary biopsies.

Freitas V

European radiology2025First author

DOI: 10.1007/s00330-024-11325-y PMID: 39747591

09

Node Reporting and Data System in Focus: Advancing Precision in Axillary Staging for Breast Cancer.

Freitas V

Radiology2025First author

DOI: 10.1148/radiol.252033 PMID: 40891971

10

The Transformative Power of Digital Breast Tomosynthesis and Artificial Intelligence in Breast Cancer Diagnosis.

Freitas V, Ghai S, Au F, Muradali D, Kulkarni S

Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes2025First author

DOI: 10.1177/08465371241301957 PMID: 39627928

Rebooting Sensitivity to Checkpoint Blockade Therapy in TNBC (RESETT)

Co-investigatorCIHR2026Project Grant

Principal investigators: Reedijk, Michael

Keywords: Caspase 1; Cytotoxic T Lymphocyte; Il1 Beta; Immune Checkpoint Blockade; Immunotherapy; Notch Signaling; Randomized Control Trial; Triple-Negative Breasat Cancer; Tumor Immune Microenvironment; Tumor-Associated Macrophage

$872,100

LOBCAN: a prospective, multi-centre cohort study of treatment and outcomes for invasive LOBular breast carcinoma in CANada.

Co-investigatorCIHR2024Project Grant

Principal investigators: Lim, David W

Keywords: Breast Oncology; Health Outcomes; Invasive Breast Cancer; Lobular Breast Cancer; Observational; Prospective Cohort Study; Treatment

$546,976

The Impact of COVID-19 on the Diagnosis and Treatment of Breast Cancer (TICTOC): a population-based study

Co-investigatorCIHR2021O. Gr.: Addr. the Health Impacts of COVID-19 - Imp. of def/disp care on health

Principal investigators: Cil, Tulin D; Eskander, Antoine; Zhong, Toni

Keywords: Breast Cancer; Covid-19; Health Equity; Population-Based

$296,920

Multispectral Needle Endoscopy: improving the patient breast cancer diagnostic experience

Co-investigatorCIHR2020Op Gr: Spark Grants in Novel Technologies in Cancer Prevention & Early Detection

Principal investigators: Easson, Alexandra

Keywords: Breast Cancer Early Detection

$147,762

From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.

Frequent collaborators

Toni Zhong and Tulin Cil: 18 shared papers
Vivianne Freitas and Sandeep Ghai: 18 shared papers
Alla Reznik and Oleksandr Bubon: 17 shared papers
Vivianne Freitas and Supriya Kulkarni: 17 shared papers
Sandeep Ghai and Supriya Kulkarni: 16 shared papers
Frederick Au and Vivianne Freitas: 11 shared papers
Frederick Au and Sandeep Ghai: 11 shared papers
Frederick Au and Supriya Kulkarni: 11 shared papers
Andrea Eisen and Tulin Cil: 10 shared papers
Tulin Cil and Andrea Covelli: 10 shared papers
Jean Seely and Supriya Kulkarni: 7 shared papers
Andrea Eisen and Derek Muradali: 6 shared papers
Tulin Cil and Amanda Roberts: 6 shared papers
Alla Reznik and Vivianne Freitas: 6 shared papers
Oleksandr Bubon and Vivianne Freitas: 6 shared papers
Abdullah Alabousi and Matt McInnes: 5 shared papers
Abdullah Alabousi and Vivianne Freitas: 5 shared papers
Toni Zhong and Andrea Covelli: 5 shared papers
Toni Zhong and Amanda Roberts: 5 shared papers
Karina Bukhanov and Sandeep Ghai: 5 shared papers
Supriya Kulkarni and Derek Muradali: 5 shared papers
Andrea Eisen and Jean Seely: 4 shared papers
Andrea Eisen and Amanda Roberts: 4 shared papers
Susan Done and Supriya Kulkarni: 4 shared papers
Susan Done and Derek Muradali: 4 shared papers
Antoine Eskander and Andrea Covelli: 4 shared papers
Antoine Eskander and Amanda Roberts: 4 shared papers
Karina Bukhanov and Vivianne Freitas: 4 shared papers
Karina Bukhanov and Supriya Kulkarni: 4 shared papers
Abdullah Alabousi and Nanxi Zha: 3 shared papers
Nanxi Zha and Matt McInnes: 3 shared papers
Nanxi Zha and Vivianne Freitas: 3 shared papers
Toni Zhong and Antoine Eskander: 3 shared papers
Toni Zhong and Vivianne Freitas: 3 shared papers
Antoine Eskander and Vivianne Freitas: 3 shared papers
Tulin Cil and Vivianne Freitas: 3 shared papers
Andrea Covelli and Vivianne Freitas: 3 shared papers
Alla Reznik and Sandeep Ghai: 3 shared papers
Jean Seely and Matt McInnes: 3 shared papers
Oleksandr Bubon and Sandeep Ghai: 3 shared papers
Amanda Roberts and Vivianne Freitas: 3 shared papers
Behnam Sadeghirad and Abdullah Alabousi: 2 shared papers
Behnam Sadeghirad and Nanxi Zha: 2 shared papers
Behnam Sadeghirad and Matt McInnes: 2 shared papers
Behnam Sadeghirad and Vivianne Freitas: 2 shared papers
Basma Al-arnawoot and Abdullah Alabousi: 2 shared papers
Susan Done and Tulin Cil: 2 shared papers
Susan Done and Vivianne Freitas: 2 shared papers
Jean Seely and Vivianne Freitas: 2 shared papers
Matt McInnes and Vivianne Freitas: 2 shared papers
Xuan Li and Frederick Au: 2 shared papers
Xuan Li and Vivianne Freitas: 2 shared papers
Xuan Li and Sandeep Ghai: 2 shared papers
Vivianne Freitas and Derek Muradali: 2 shared papers
Andrea Eisen and Vivianne Freitas: 1 shared paper
Basma Al-arnawoot and Susan Done: 1 shared paper
Basma Al-arnawoot and Vivianne Freitas: 1 shared paper
Alla Reznik and Apichart Linhananta: 1 shared paper
Oleksandr Bubon and Apichart Linhananta: 1 shared paper
Andrew Chan and Vivianne Freitas: 1 shared paper
Andrew Chan and Sandeep Ghai: 1 shared paper
Andrew Chan and Supriya Kulkarni: 1 shared paper
Afsaneh Alikhassi and Frederick Au: 1 shared paper
Afsaneh Alikhassi and Vivianne Freitas: 1 shared paper
Afsaneh Alikhassi and Sandeep Ghai: 1 shared paper
Vivianne Freitas and Apichart Linhananta: 1 shared paper

Department of Medical Imaging
Department of Surgery
Medical Imaging
Physics
Radiology
JDMI - Princess Margaret Cancer Centre
Institute of Health Policy, Management, and Evaluation
Other

Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Sandeep Ghai

Department of Medical Imaging

18 shared papers, latest 2025

Supriya Kulkarni

Department of Medical Imaging

17 shared papers, latest 2026

Frederick Au

Department of Medical Imaging

11 shared papers, latest 2025

Alla Reznik

Physics

6 shared papers, latest 2026

Oleksandr Bubon

Physics

6 shared papers, latest 2026

Abdullah Alabousi

Medical Imaging

5 shared papers, latest 2023

Karina Bukhanov

Department of Medical Imaging

4 shared papers, latest 2023

Nanxi Zha

Medical Imaging

3 shared papers, latest 2021

Tulin Cil

Department of Surgery

3 shared papers, latest 2025

Toni Zhong

Department of Surgery

3 shared papers, latest 2026

Antoine Eskander

Institute of Health Policy, Management, and Evaluation

3 shared papers, latest 2026

Andrea Covelli

Department of Surgery

3 shared papers, latest 2026

Amanda Roberts

Department of Surgery

3 shared papers, latest 2026

Derek Muradali

Department of Medical Imaging

2 shared papers, latest 2025

Behnam Sadeghirad

Department of Anesthesia

2 shared papers, latest 2021

Matthew McInnes

Medical Imaging

2 shared papers, latest 2021

Xuan Li

Biostatistics Division

2 shared papers, latest 2024

jean-paul salameh

Medical Imaging

2 shared papers, latest 2021

Susan Done

Department of Laboratory Medicine & Pathobiology

2 shared papers, latest 2020

Jean Seely

Radiology

2 shared papers, latest 2026

Matt McInnes

Radiology

2 shared papers, latest 2021

Heba Hussein

JDMI - Princess Margaret Cancer Centre

1 shared papers, latest 2023

Apichart Linhananta

Bioinformatics

1 shared papers, latest 2026

Isabelle Trop

Département de radiologie, radio-oncologie et médecine nucléaire

1 shared papers, latest 2026

Hal Berman

Department of Laboratory Medicine & Pathobiology

1 shared papers, latest 2025

Jaime Escallon

Department of Surgery

1 shared papers, latest 2016

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Subject: Prospective PhD student Dear Professor Freitas, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Breast Cancer Surgery Wait Times and COVID-19: A Canadian Population-Based Analysis." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]