Faculty profile
Greg Ryan
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Read how they describe their research on their University of Toronto profile.
Latest papers
Comparison of Insertion Difficulties and Performance of Thoracoamniotic Shunts for Fetal Hydrothorax: Success and Failure Rates in Different Shunt Types for Fetal Hydrothorax.
Prenatal diagnosis · 2026
The Impact of Maternal Body Mass Index on Fetoscopic Laser Surgery for Twin-Twin Transfusion Syndrome.
Fetal diagnosis and therapy · 2026 · senior author
Maternal-fetal complications of non-immune fetal hydrops - mirror syndrome and hypereactio luteinalis with ovarian torsion: A case report.
Case reports in women's health · 2026
Latest funding
- $2,845,545
Advanced Fetal Diagnosis and Therapy Program
CFI · 2020 · Co-investigator
- $325,250
Development of a Magnetic Resonance guided High Intensity Focused Ultrasound Therapy Platform for Perinatal Applications
CIHR · 2018 · Co-investigator
- $1,349,755
Fetal Atrial Flutter & Supraventricular Tachycardia (FAST) Therapy Trial: Proposal of an International Registry and Randomized Controlled Trial (RCT)
CIHR · 2014 · Co-investigator
From the 150 most recent of 415 publications.
Comparison of Insertion Difficulties and Performance of Thoracoamniotic Shunts for Fetal Hydrothorax: Success and Failure Rates in Different Shunt Types for Fetal Hydrothorax.
Treurniet TT, Abbasi N, Ryan G, Witlox RSGM, Slaghekke F, Nørgaard LN, Sundberg K, Lindgren P, Ek S, Thilaganathan B, Blayney G, Devlieger R, Lewi L, Johnson A, Pacora Portella PN, David AL, Vieira M, Khalil A, Poljak B, Vonzun L, Ochsenbein-Koelble N, Choolani M, Gosavi A, Moise KJ, Hutson E, Verweij EJTJ, Haak MC
The Impact of Maternal Body Mass Index on Fetoscopic Laser Surgery for Twin-Twin Transfusion Syndrome.
Van der Veeken L, Ziarko I, Kunpalin Y, Abbasi N, Keunen J, Flores-Mendoza H, Van Mieghem T, Ryan G
Maternal-fetal complications of non-immune fetal hydrops - mirror syndrome and hypereactio luteinalis with ovarian torsion: A case report.
Bartels HC, Ryan G, Jaeggi E, Flores-Mendoza H
Pre‐Procedure Predictors of Six‐Month Survival After Fetoscopic Laser Ablation for Twin–Twin Transfusion Syndrome ( TTTS ): Retrospective Observational Study
Yang Huang Grace Ng, Prakesh S. Shah, Seungwoo Lee, Nimrah Abbasi, Johannes Keunen, Homero Flores-Mendoza, Tim Van Mieghem, Rory WINDRIM, Greg Ryan
Prenatal and Perinatal Outcomes in Fetuses With Macrocystic Congenital Pulmonary Airway Malformations: Thoracoamniotic Shunting Versus Expectant Management
Laurence Sophie Carmant, Alexandria Kelly, SeungWoo Lee, Vesna Sokol Karadjole, Greg Ryan, Tim Van Mieghem, Prakesh S. Shah, Anna Otvodenko, Priscilla Chiu, Nimrah Abbasi
Fetal Brain Abnormalities Following Laser Surgery for Twin-to-Twin Transfusion Syndrome: Imaging Patterns and Evolution.
Kunpalin Y, Miller E, Larsen I, Raghuram K, Windrim C, Abbasi N, Ryan G, Mieghem TV, Shinar S
Non-invasive Fetal Genotyping for RhD-Negative and Alloimmunized Pregnancies
Nadine Shehata, George S. Charames, Greg Ryan, Gregory Denomme, Tim Van-Mieghem, Evangelia Vlachodimitropoulou, Rita Kandel, Jordan Lerner-Ellis
Response to Commentary on "Virtual Reality Simulation in Teaching Fetoscopic Laser Placental Photocoagulation in Twin-To-Twin Transfusion Syndrome".
Windrim C, Charleson C, Gualdron DR, Quevedo A, Gotha L, Van Mieghem T, Ryan G, Windrim R
Enhancing fetal spina bifida repair: do paraspinal myofascial flaps and acellular dermal patches improve postnatal outcomes? A retrospective cohort review
Yada Kunpalin, Ingrid Larsen, Jennifer L. Quon, Greg Ryan, Karen Wong Riff, Abhaya Vivek Kulkarni, Johanna N. Riesel, Tim Van Mieghem
Digital Footprints, Green Impact: User Engagement Analysis of a Conference Management Platform at the 41st Annual IFMSS Meeting.
Windrim C, Hojabri SF, Gotha L, Ryan G, Windrim R, Dada J
Advanced Fetal Diagnosis and Therapy Program
Principal investigators: James Drake, Tim Van Mieghem
Keywords: MR Imaging,Optical Coherence Tomography,Surgical Robotics,Fetal surgery,In-utero treatment, Magnetic resonance imaging,Optical imaging,Robotics,
Development of a Magnetic Resonance guided High Intensity Focused Ultrasound Therapy Platform for Perinatal Applications
Principal investigators: Waspe, Adam C; Allard, Mathieu; Drake, James M
Keywords: Fetal Intervention; Fetal Malformations; High Intensity Focused Ultrasound; Magnetic Resonance Imaging; Medical Robotics; Motion Compensation; Mri Compatibility; Pregnant Rabbit Model; Thermometry; Treatment Planning
Fetal Atrial Flutter & Supraventricular Tachycardia (FAST) Therapy Trial: Proposal of an International Registry and Randomized Controlled Trial (RCT)
Principal investigators: Jaeggi, Edgar T
Keywords: Clinical Trial; Drug Therapy; Fetal; Pregnancy; Randomized Controlled Trial; Supraventricular Tachyarrhythmia
Twin-to-Twin Transfusion Syndrome: Pathogenic Mechanisms & Relevance to Congenital Heart Disease
Principal investigators: Hornberger, Lisa K
Keywords: Congenital Heart Disease; Fetal Circulation; Intrauterine Growth Restriction; Placental Development; Twin-Twin Transfusion
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
- Prakeshkumar Shah and Prakesh Shah: 856 shared papers
- Donald Arnold and Jeannie Callum: 794 shared papers
- Jon Barrett and Nir Melamed: 197 shared papers
- James Drake and Abhaya Kulkarni: 91 shared papers
- John Kingdom and Nir Melamed: 47 shared papers
- Tim Van Mieghem and Greg Ryan: 46 shared papers
- Edgar Jaeggi and Greg Ryan: 36 shared papers
- Jon Barrett and Prakeshkumar Shah: 35 shared papers
- Jon Barrett and Prakesh Shah: 35 shared papers
- Nimrah Abbasi and Greg Ryan: 33 shared papers
- John Kingdom and Edgar Jaeggi: 32 shared papers
- Rory Windrim and Greg Ryan: 32 shared papers
- Prakeshkumar Shah and Nir Melamed: 27 shared papers
- Nir Melamed and Prakesh Shah: 27 shared papers
- Jeannie Callum and Lani Lieberman: 26 shared papers
- Prakeshkumar Shah and Greg Ryan: 25 shared papers
- Nadine Shehata and Jeannie Callum: 25 shared papers
- Nadine Shehata and Lani Lieberman: 25 shared papers
- Jon Barrett and John Kingdom: 24 shared papers
- Johannes Keunen and Greg Ryan: 24 shared papers
- Donald Arnold and Lani Lieberman: 23 shared papers
- Jon Barrett and Greg Ryan: 23 shared papers
- Greg Ryan and Prakesh Shah: 23 shared papers
- Donald Arnold and Nadine Shehata: 22 shared papers
- John Kingdom and Greg Ryan: 22 shared papers
- Nimrah Abbasi and Tim Van Mieghem: 21 shared papers
- Tim Van Mieghem and Shiri Shinar: 19 shared papers
- Rory Windrim and Johannes Keunen: 18 shared papers
- Tim Van Mieghem and Johannes Keunen: 17 shared papers
- David Chitayat and Shiri Shinar: 16 shared papers
- Tim Van Mieghem and Rory Windrim: 16 shared papers
- Jacob Langer and Greg Ryan: 14 shared papers
- Nimrah Abbasi and Johannes Keunen: 14 shared papers
- Shiri Shinar and Greg Ryan: 14 shared papers
- Gareth Seaward and Greg Ryan: 13 shared papers
- David Chitayat and Greg Ryan: 12 shared papers
- James Drake and Greg Ryan: 11 shared papers
- Nadine Shehata and Greg Ryan: 11 shared papers
- Abhaya Kulkarni and Greg Ryan: 11 shared papers
- Gareth Seaward and Rory Windrim: 11 shared papers
- Prakeshkumar Shah and Karel O'Brien: 10 shared papers
- Karel O'Brien and Greg Ryan: 10 shared papers
- Karel O'Brien and Prakesh Shah: 10 shared papers
- Tim Van Mieghem and Yada Kunpalin: 10 shared papers
- Prakeshkumar Shah and Edmond Kelly: 9 shared papers
- Nir Melamed and Greg Ryan: 9 shared papers
- Gareth Seaward and Johannes Keunen: 9 shared papers
- Yada Kunpalin and Greg Ryan: 9 shared papers
- Prakesh Shah and Edmond Kelly: 9 shared papers
- John Kingdom and David Chitayat: 8 shared papers
- Jeannie Callum and Greg Ryan: 8 shared papers
- Abhaya Kulkarni and Tim Van Mieghem: 8 shared papers
- Lani Lieberman and Greg Ryan: 8 shared papers
- Shiri Shinar and Yada Kunpalin: 8 shared papers
- Donald Arnold and Greg Ryan: 7 shared papers
- Nadine Shehata and Evangelia Vlachodimitropoulou: 6 shared papers
- Greg Ryan and Evangelia Vlachodimitropoulou: 6 shared papers
- Greg Ryan and Edmond Kelly: 6 shared papers
- James Drake and Tim Van Mieghem: 4 shared papers
- David Chitayat and Edgar Jaeggi: 4 shared papers
- Edgar Jaeggi and Jacob Langer: 3 shared papers
- Jacob Langer and Rory Windrim: 3 shared papers
- Lani Lieberman and Evangelia Vlachodimitropoulou: 3 shared papers
- Department of Obstetrics & Gynaecology
- Department of Paediatrics
- Department of Surgery
- Department of Laboratory Medicine & Pathobiology
- Department of Medicine
- Obstetrics & Gynecology
- Institute of Medical Science
- 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.
Tim Van Mieghem
Department of Obstetrics & Gynaecology
46 shared papers, latest 2026
Edgar Jaeggi
Department of Paediatrics
36 shared papers, latest 2026
Nimrah Abbasi
Department of Obstetrics & Gynaecology
33 shared papers, latest 2026
Rory Windrim
Department of Obstetrics & Gynaecology
32 shared papers, latest 2026
Prakeshkumar Shah
Department of Paediatrics
25 shared papers, latest 2026
Johannes Keunen
Department of Obstetrics & Gynaecology
24 shared papers, latest 2026
Prakesh Shah
Department of Paediatrics
23 shared papers, latest 2026
Jon Barrett
Obstetrics & Gynecology
23 shared papers, latest 2025
John Kingdom
Department of Obstetrics & Gynaecology
22 shared papers, latest 2023
Jacob Langer
Department of Surgery
14 shared papers, latest 2021
Shiri Shinar
Department of Obstetrics & Gynaecology
14 shared papers, latest 2026
Gareth Seaward
Faculty
13 shared papers, latest 2026
David Chitayat
Department of Paediatrics
12 shared papers, latest 2026
Nadine Shehata
Department of Laboratory Medicine & Pathobiology
11 shared papers, latest 2026
Abhaya Kulkarni
Department of Surgery
11 shared papers, latest 2026
James Drake
Department of Surgery
11 shared papers, latest 2021
Karel O'Brien
Department of Paediatrics
10 shared papers, latest 2016
Yada Kunpalin
Department of Obstetrics & Gynaecology
9 shared papers, latest 2026
Nir Melamed
Department of Obstetrics & Gynaecology
9 shared papers, latest 2023
Jeannie Callum
Department of Medicine
8 shared papers, latest 2025
Lani Lieberman
Department of Laboratory Medicine & Pathobiology
8 shared papers, latest 2025
Edmond Kelly
Department of Paediatrics
6 shared papers, latest 2025
Evangelia Vlachodimitropoulou
Institute of Medical Science
6 shared papers, latest 2026
Vann Chau
Department of Paediatrics
3 shared papers, latest 2020
Manuel Carcao
Institute of Medical Science
2 shared papers, latest 2026
Paige Church
Department of Paediatrics
2 shared papers, latest 2020
Yenge Diambomba
Department of Paediatrics
2 shared papers, latest 2020
Stefania Ronzoni
Department of Obstetrics & Gynaecology
2 shared papers, latest 2018
David Rojas
Department of Obstetrics & Gynaecology
2 shared papers, latest 2025
Michal Inbar-Feigenberg
Department of Paediatrics
1 shared papers, latest 2018
Aideen Moore
Department of Paediatrics
1 shared papers, latest 2021
Sarah Tehseen
Department of Medicine
1 shared papers, latest 2025
Amanda Selk
Department of Obstetrics & Gynaecology
1 shared papers, latest 2022
Audrey Hébert
Médecine
1 shared papers, latest 2024
Andrea Lausman
Department of Obstetrics & Gynaecology
1 shared papers, latest 2013
Ann Malinowski
Department of Obstetrics & Gynaecology
1 shared papers, latest 2022
Cynthia Maxwell
Department of Obstetrics & Gynaecology
1 shared papers, latest 2022
Elad Mei-Dan
Department of Obstetrics & Gynaecology
1 shared papers, latest 2023
Lee Benson
Department of Paediatrics
1 shared papers, latest 2008
Nanette Okun
Department of Obstetrics & Gynaecology
1 shared papers, latest 2025
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Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.