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Byrne Angela Dr Consultant Paediatric Radiologist
Phelan Ethne Dr Consultant Paediatric Radiologist 
Snow Aisling Dr Consultant Paediatric Radiologist

Dr. Angela Theresa Byrne
Clinical Senior Lecturer, Paediatrics

Dr. Ethna Phelan
Clinical Senior Lecturer, Paediatrics

Dr. Aisling Snow
Clinical Senior Lecturer, Paediatrics

Publications and Further Research Outputs

Peer-Reviewed Publications

Lane L, deGascun C, O'Connor P, Cronly S, Snow A, Cryan J, Multicystic encephalomalacia the neuropathology of systemic neonatal parechovirus infection, Pediatric and Developmental Pathology, 2021 Journal Article, 2021

Snow A., Taylor G.A., Coronavirus Disease 2019 (COVID-19) Imaging Austerity: Coming Back From the Pandemic, Journal of the American College of Radiology, 17, (7), 2020, p903 - 905, p903-905 Journal Article, 2020 DOI

Breatnach, Colm; Snow, Aisling; Nolke, Lars; Oslizlok, Paul, Cardiac Strangulation Causing Refractory Cardiac Arrest, Cardiology in the Young, 30, (10), 2020, p1535 - 1537 Journal Article, 2020

Walsh B, Fennessy P, Ni Mhuircheartaigh R, Snow A, McCarthy KF, McCaul CL, Accuracy of ultrasound in measurement of the pediatric cricothyroid membrane., Paediatric anaesthesia, 2019 Journal Article, 2019

Martin, Therese, Moore, Mary, Melody, Laura, Nolan, Beatrice, Snow, Aisling, Govender, Pradeep, Blackburn, Carol, GP55"Going out on a (clotted) limb " an interesting case of paget-schroetter syndrome in a young adolescent, BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health, 2019 Conference Paper, 2019 DOI

Joyce EA, Farrell T, McMorrow J, Mulholland D, Browne KM, Snow A, Are adult carpal angle measurements applicable to the pediatric population in the trauma setting?, Skeletal radiology, 2018 Journal Article, 2018

A Snow, E Joyce, R O'Connor, D Rea, Efficacy of Child-Sized MRI Simulation in Avoiding GA and Sedation in Children, European Society for Paediatric Radiology, Berlin, Germany, June 2018, 2018 Poster, 2018

Smyth AE, Kaleviste E, Snow A, Kisand K, McMahon CJ, Cant AJ, Leahy TR, Aortic Calcification in a Patient with a Gain-of-Function STAT1 Mutation., Journal of clinical immunology, 2018 Journal Article, 2018 DOI

Murphy D, McCoubrey S, Snow A, Checking Pregnancy Status of Young Girls in Advance of Radiological Intervention - Time for a Rethink?, European Congress of Radiology, Vienna, March, 2018 Poster, 2018

Aisling Snow, Carly E. Milliren, Dionne A. Graham, Michael J. Callahan, Robert D. MacDougall, Richard L. Robertson, George A. Taylor, Quality of pediatric abdominal CT scans performed at a dedicated children"s hospital and its referring institutions: a multifactorial evaluation, Pediatric Radiology, 2017 Journal Article, 2017

Mc Govern E, Kelleher E, Snow A, Walsh K, Gadallah B, Kutty S, McMahon CJ, Clinical application of three-dimensional printing to the management of complex univentricular hearts with abnormal systemic or pulmonary venous drainage, Cardiology in the Young, 27, (7), 2017, p1248 - 1256 Journal Article, 2017

Foley, C, Killeen O, Snow A, Radiological Features Identified in the Hands of Children with Down syndrome and Inflammatory Arthritis, American Congress of Rheumatology, 2017 Poster, 2017

Joyce E, Snow A, Comparing Adult and Paediatric Carpal Angles, European Congress of Radiology, Vienna, 2017 Poster, 2017

E O'Dwyer, R O'Connor, A Snow, The Value of Child-Sized MRI Simulation in the General Anaesthesia Paediatric Population; a Single-Centre Review, RSNA, Chicago, IL, USA, 2017 Poster, 2017

Charlene Foley, Emma Jane Mac Dermott, Aisling Snow, Orla G Killeen, 043."Radiological features identified in the hands of children with Down syndrome and inflammatory arthritis, Rheumatology, 56, (suppl{\_), 2017 Journal Article, 2017

Johnston N, Snow A, McMahon CJ., Unexpected coronary arterial calcification and thrombosis late after Kawasaki disease., BMJ case reports, 2016, 2016 Journal Article, 2016 DOI

Snow AL, Uller W, Kim HB, Alomari AI, Percutaneous embolization of a chylous leak from thoracic duct injury in a child., 2014 Journal Article, 2014

Aisling Snow, Carlos Estrada, Jeanne S. Chow, Ultrasonography of the Pediatric Bladder, Ultrasound Clinics, 8, (3), 2013, p423--439 Journal Article, 2013

Bartley M, Bokde AL, Ewers M, Faluyi YO, Tobin WO, Snow A, Connolly J, Delaney C, Coughlan T, Collins DR, Hampel H, O'Neill D, Subjective memory complaints in community dwelling healthy older people: the influence of brain and psychopathology., International Journal of Geriatric Psychiatry, 27, (8), 2012, p836-43 Journal Article, 2012 DOI

Snow A, Halpenny D, Mc Neill G, Torreggiani WC, Life-threatening Rupture of a Renal Angiomyolipoma in a Patient Taking Over-the-counter Horse Chestnut Seed Extract., The Journal of emergency medicine, 2011 Journal Article, 2011 DOI

Bracken J, Robinson I, Snow A, Watson R, Irvine AD, Rea D, Phelan E, PHACE syndrome: MRI of intracerebral vascular anomalies and clinical findings in a series of 12 patients., Pediatric radiology, 41, (9), 2011, p1129-38 Journal Article, 2011

Snow A, Hamilton S, Dual Energy X-Ray Absorptiometry (DXA) in Children with Short Stature - the Importance of Adjusting Bone Mineral Density (BMD) Results for Height, Society for Pediatric Radiology, Boston, MA, USA, 2010 Poster, 2010

Ryan J, Snow A, Darker C, Torreggiani W, Comparison of clinical outcomes from chest X-rays of smokers and non-smokers in a general practice population., Irish Medical Journal, 103, (3), 2010, p90 - 92 Journal Article, 2010

Halpenny D, Snow A, McNeill G, Torreggiani WC, The radiological diagnosis and treatment of renal angiomyolipoma-current status., Clinical radiology, 65, (2), 2010, p99-108 Journal Article, 2010 DOI

Halpenny D, Burke J, McNeill G, Snow A, Torreggiani WC, Geographic origin of publications in radiological journals as a function of GDP and percentage of GDP spent on research., Academic radiology, 17, (6), 2010, p768-71 Journal Article, 2010 DOI

McNeill G, Halpenny D, Snow A, Torreggiani WC, Re: Pilot study of transcatheter arterial ethanol emolization under closed renal circuit for large renal cell carcinomas., 2009 Journal Article, 2009

A Snow, S Hamilton, M Ryan, E Colhoun, E O'Mullane, H Hoey, Paediatric DXA interpertation - applying internationl guidelines, Hormone Research, 72, (s3), 2009, p356- Journal Article, 2009

Halpenny DF, McNeil G, Snow A, Geoghegan T, Torreggiani WC, Prospective evaluation of the value of magnetic resonance imaging in suspected acute sigmoid diverticulitis., 2009 Journal Article, 2009

Buckley O, Ward E, Ryan A, Colin W, Snow A, Torreggiani WC, European obesity and the radiology department. What can we do to help?, 2009 Journal Article, 2009

McNeill G, Halpenny D, Snow A, Buckley O, Torreggiani WC, Re: Paget's disease of the bone: a review., 2009 Journal Article, 2009

McNeill G, Halpenny D, Snow A, Geoghegan A, Torreggiani WC, Extrapontine myelinolysis after correction of hyponatraemia presenting as generalised tonic seizures., 2009 Journal Article, 2009

McNeill G, Halpenny D, Snow A, Torreggiani WC, Re: diagnosis of hepatic angiomyolipomata using CT: report of three cases and review of the literature., 2009 Journal Article, 2009

Snow A, Buckley O, Torreggiani WC, Sonographic appearance of metallic ureteric stents., 2009 Journal Article, 2009

McNeill G, Ward E, Halpenny D, Snow A, Torreggiani W, Ultrasound appearances of Implanon implanted contraceptive devices., 2009 Journal Article, 2009

McNeill G, Halpenny D, Snow A, Torreggiani WC, Re: Pericardial effusion impending tamponade: a look beyond Beck's triad., 2009 Journal Article, 2009

Feeney J, Govender P, Snow A, Torreggiani WC., Answer to case of the month #136. Endometrioma of the rectus sheath after Caesarean section., Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes, 59, (4), 2008, p210-212 Journal Article, 2008 DOI

Buckley, O, Geoghegan, T, Ridgeway, P, Colhoun, E, Snow, A, Torreggiani, WC, Imaging of Appendicoliths Dropped at Laparoscopic Appendectomy and Their Complications, CANADIAN ASSOCIATION OF RADIOLOGISTS JOURNAL-JOURNAL DE L ASSOCIATION CANADIENNE DES RADIOLOGISTES, 58, 2007 Journal Article, 2007

Geoghegan T, McAuley G, Snow A, Torreggiani WC., Emergency embolization of multiple splenic artery pseudoaneurysms associated with portal hypertension complicating cystic fibrosis., Australasian radiology, 51 Suppl, 2007, pB337-9 Journal Article, 2007 DOI

Buckley O, O' Brien J, Snow A, Stunell H, Lyburn I, Munk PL, Torreggiani WC., Imaging of Budd-Chiari syndrome., European radiology, 17, (8), 2007, p2071-2078 Journal Article, 2007 DOI

Buckley, O, Geoghegan, T, Ridgeway, P, Colhoun, E, Snow, A, Torreggiani, WC, The usefulness of CT guided drainage of abscesses caused by retained appendicoliths, EUROPEAN JOURNAL OF RADIOLOGY, 60, 2006 Journal Article, 2006

Non-Peer-Reviewed Publications

O'Connor R, Ryan S, Snow A, 'Paediatric Radiography Protocols for Children's Health Ireland', version 1, 2018, - Protocol or guideline, 2018

L Fitzgerald, A Snow, Audit of Physical Marker Use in Paediatric Radiology, 2018 Poster, 2018

A Snow, Paediatric Radiology, Paediatric Trainee Study Day, RCPI, Kildare Street, April , 2018 Invited Talk, 2018

A Snow, Paediatric MRA/MRV, Irish MRI Meeting, Kilkenny, January, 2017 Invited Talk, 2017

A Snow, Paediatric Iliofemoral Ligament Tears, Charter Day, RCSI, Dublin, February, 2017 Invited Talk, 2017

A Snow, Designing for Success - Radiology Planning for the New Children's Hospital, Annual Scientific Meeting, Faculty of Radiologists, RCSI, Dublin, September, 2017 Invited Talk, 2017

A Snow, Update on Foetal MRI, Irish Perinatal Society Meeting, RCPI Kildare Street, October, 2016 Invited Talk, 2016

A Snow, Murphy D, Mc Coubrey S, Paediatric Perspective on Pregnancy in Imaging, National Pregnancy Policy Workshop, Dublin, February, 2016 Invited Talk, 2016

Research Expertise


3D Printing; BONE DENSITY; Diagnostics; DXA; Foetal Abnormality; Health Planning/Policy; Magnetic Resonance Imaging (MRI); MRI; MUSCULOSKELETAL SYSTEM; PAEDIATRIC; QUALITY ASSESSMENT; RADIOLOGY; Radiology, tomography and medical imaging; ULTRASOUND



Member of the Healthcare Technology Equipping Group, Children's Health Ireland. This group reports to the board of the CHI and to the National Paediatric Hospital Development Board and is tasked with overseeing the healthcare equipment procurement for the new children's hospital. I am the sole clinician on the committee and have been heavily involved in evaluating the options for how to equip the hospital in general and the radiology department in particular. March

Paediatric Radiology Subgroup, Faculty of Radiologists, RCSI 2018

Clinical Lead for Paediatric Radiology, Children's Health Ireland. I have responsibility for coordinating the integration of the paediatric radiology services in Crumlin, Temple Street and Tallaght into one entity. This involves mobilising teams of relevant staff members and leading subgroups tasked with planning workforce, IT, administrative, QA, research, education, interventional radiology, radiation protection and patient safety aspects of the service. 2015

Fetal subcommittee of the Society of Pediatric Radiology 2018

Member, Radiation Safety Committee, Children's Health Ireland 2018

Member of Cross Hospital Paediatric Radiologists Group, Dublin. I designed the governance structure for our specialty that has been accepted by the CEO of the CHI hospital group and now applies to our method of managing the process of integrating the 3 hospitals into 1. As part of this the Cross Hospital Paediatric Radiologists Group has responsibility for policies and protocols in paediatric radiology. January

Member of Radiation Quality Assurance Group, Children's Health Ireland at Crumlin April

Reviewer, Journal of Ultrasound in Medicine

Member of the Residency Review Committee, Boston Children's Hospital 2012

Member and Fellow representative, Graduate Medical Education (GME) Committee, Boston Children's Hospital 2013

Member, Non-Consultant Hospital Doctor committee, Irish Medical Organisation 2009

Radiology Registrar Rota Coordinator, Tallaght University Hospital - responsibility for drawing up fair and effective rotas for daily work and call cover for all radiology registrars 2010

Awards and Honours

Scholarship, Trinity College Dublin 2001

Fellowship of the Faculty of Sports & Exercise Medicine (RCSI/RCPI) 10/12/2018

Innovate Course, Enterprise Ireland/Guinness Enterprise Centre/Dublin Business Innovation Centre November 2018

Entrance Exhibition, Trinity College Dublin 1998

Junior Grant of the European Society for Paediatric Radiology - bursary to support attendance at the annual meeting, awarded to promising trainees 2013


Fellow of the Faculty of Radiologists, RCSI 2011 – Current

Fellow of the Faculty of Sports and Exercise Medicine, RCPI/RCSI 2018 – Current

European Society of Skeletal Radiology 2014 – Current

American Institute of Ultrasound in Medicine 2015 – Current

Society for Paediatric Radiology 2012 – Current

European Society for Paediatric Radiology 2011 – Current

Radiological Society of North America 2018 – Current