J Mark Ryan
Clinical Senior Lecturer, Surgery

Biography

Dr. J Mark Ryan MB FFRRCSI, FRCR (London), EBIR graduated in Medicine from Trinity College Dublin in 1988. He completed his Specialist Fellowship Training in Interventional Radiology at Massachusetts General Hospital, Harvard Medical School, Boston. He was an Assistant Professor of Interventional Radiology at Duke University Medical Center in North Carolina from 1998-2004. He is a Fellow of the Cardiovascular Interventional Radiological Society of Europe, and has a European Board of Interventional Radiology (EBIR) qualification. Dr Ryan specialises in delivering minimally invasive oncological and endovascular treatments for many forms of cancer, vascular malformations, liver disease and bleeding and thrombotic disorders. Dr Ryan has a particular interest in minimally invasive treatments for cancer including chemoembolization and ablation therapies. He has specialist expertise in the treatment of vascular malformations in paediatric and adult populations, as well as a clinical research interest in the management of haemorrhage and thrombosis, as well as in performing endovascular treatments for the management of acute Stroke. Dr Ryan has been actively involved in academics and clinical research for over 20 years, during which time he has published and presented more than 120 peer-reviewed scientific papers, editorials, articles and book chapters with over 1250 citations in the medical literature. Dr Ryan has lectured in Europe, Asia and the USA and has been on Faculty for international conferences for over two decades including The Society of Interventional Radiology (SIR), The International Symposium on Endovacular Therapies (ISET), The Cardiovascular Interventional Radiology Society of Europe (CIRSE),The European Congress of Radiology (ECR), Global Embolization Symposium and Technologies (GEST) and European (ECIO) and World Congresses of Interventional Oncology (WCIO). He was a member of the Host Committee for The European Congress of Interventional Oncology (ECIO) 2016. Current Appointments: Consultant Interventional Radiologist, Administrative Lead in IR St James's Hospital, Dublin Clinical Senior Lecturer, St James Hospital and Trinity College Dublin Consultant Interventional Radiologist at Our Ladys Hospital for Sick Children, Crumlin - with a Special Interest in the imaging and treatment of Vascular Malformations. Consultant Interventional Radiologist, Beacon Hospital Dublin. He is a Medical Volunteer and Board Member of the Operation Childlife charity (www.operationchildlife.com) which is the medical affiliate of The Christina Noble Childrens Foundation (www.CNCF.org). https://www.tcd.ie/alumni/about/alumni/interviews/mark-ryan.php

Publications and Further Research Outputs

Peer-Reviewed Publications

Roger Smyth, Douglas Mulholland, J. Mark Ryan , A comparison of magnetic resonance angiography and digital subtraction angiography for the diagnosis of renal artery stenosis: a five-year study. , Irish MRI Meeting, Kilkenny, Ireland, 21 January 2017, 2017 Poster, 2017

Peter Hughes; Ian Brennan; J Mark Ryan, Use of the EMBA Hourglass Peripheral Embolisation Device: early experiences European Radiology Experimental, European Radiology Experimental, 2017 Journal Article, 2017

D Mulholland, JM Ryan , Retrograde Ureteric Stent Exchange: The Experience of a Single Tertiary Referral Centre , European Radiology, ECR, Vienna, Austria, March 2017, 2017 Conference Paper, 2017

P Hughes, C Grant, N Healy, JM Ryan, Treatment of Hepatic Metastases from Medullary Thyroid Cancer with Transarterial Embolisation. European Radiology Experimental., 2017 Case Study, 2017

J Mark Ryan, Corbally M, Redmond M, Oslizlok P, O,Hare B., Operation Childlife: A a Model for Skills Transfer Collaborative Models for Childhood Cancer in LMIC, Conference: 48th Congress of The International Society of Paediatric Oncology, Dublin, Ireland, October 2016, 2016 Conference Paper, 2016

K Field, N Gleeson, JM Ryan., Uterine Artery embolization in the setting of Gynaecological-cancer related bleeding., European Journal of Gynaecological Oncology, Ref. EJGO 3160/35:, 2016, pRef. EJGO 3160/35: Journal Article, 2016

C Logan, J Kavanagh, N O'Connell, N McEniff, JM Ryan, M Guiney, K Ryan, O Seery, J O'Donnell, B White., Out of sight, out of mind? An audit which proposes a follow-up and management pathway for Inferior Vena Cava Filters. , Thrombosis, MS No 483870, 2016, pdoi:10.1155/2016/6538456 Journal Article, 2016

Redmond M, O Hare B, Ozlislok P, Casey B, Ryan JM, Corbally M, A Simple Model of Complex Clinical Skills Exchange., Global Health Partnerships:
Innovations in Surgery, Education and Research Conference, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland, April 2016, 2016 Conference Paper, 2016

U O' Connor, C Walsh, JM Ryan et al., Occupational radiation dose to eyes from interventional radiology procedures in loght of the new eye lens dose limit from the International Commission on Radiological Protection., British Journal of Radiology, 88, 2015, p20140627 Journal Article, 2015

McCarthy E, Kavanagh J, McKernan S, O'Mahony N, McEniff N, Ryan JM, et al, Fluoroscopically guided transurethral removal and/or replacement of ureteric stents in women. , Acta Radiologica, 2014, p[Epub ahead of print] PMID: 24 Journal Article, 2014

Dunne R, McCarthy E, Joyce E, Ryan JM, McEniff N,, Post-endoscopic biliary sphincterotomy bleeding: an interventional radiology approach., Acta Radiologica, 54, (10), 2013, p1159 - 1164 Journal Article, 2013

Eoghan McCarthy · Niamh O'Mahony · J. Mark Ryan · Michael Guiney, Combined thrombin-collagen injection for the management of an iatrogenic pseudoanuerysm in the popliteal region, Indian Journal of Radiology and Imaging, 22, (4), 2012, p257 - 259 Journal Article, 2012

McCarthy E, O'Riordan C, O'Mahony N, Cronin K, Harmon M, McEniff N, Guiney J M, Ryan M, Vessel recruitment in redo transarterial chemoembolization for HCC, an approach to management., European Congress of Radiology, Vienna, March 2012, 2012 Conference Paper, 2012

McCarthy E, Mahony NO, Ryan JM et al, Successful catheter directed thrombolysis of IVC and renal vein occlusive thrombus., Irish Medical Journal, 104, (10), 2011, p311 - 312 Journal Article, 2011

Dunne R, McEniff N, Guiney M, Ryan JM. , Distinction Award - Percutaneous Radiofrequency Ablation of Renal Tumors: Technique and Follow up, ECR, Vienna, 2010, 2010 Poster, 2010

Howard J, Ryan JM., Spectrum of endovascular management of differing GDA pathologies. , ECR, Vienna, 2010, DOI 10.1594/ecr2010/, 2010 Poster, 2010

J Harbison, J Mark Ryan, Stroke Interventions- Remapping the Boundaries of Patient Care, Intervention Quarter, 2, 2010, p14 - 16 Journal Article, 2010

Beddy P, McGrath A, Reynolds JV, Ryan JM, Primary embolisation of a symptomatic gastrointestinal stromal tumor, Journal of Vascular and Interventional Radiology, 20, (8), 2009, p1099 - 1101 Journal Article, 2009

Dunne R, Beddy P, Guiney M, McEniff N, Ryan JM , Management of Post-Sphincterotomy Bleeding: An Interventionalist's Perspective, Radiology, RSNA, Chicago, USA, 2009, 2009 Conference Paper, 2009

Dunne R, Beddy P, Guiney M, McEniff N, Ryan JM , Transarterial Chemoembolisation using Drug Eluting Beads in the Treatment of Hepatic Metastases in Patients with Colorectal Metastases: An Initial Experience , Radiology, RSNA, Chicago, USA, 2009, 2009 Conference Paper, 2009

JM Howard, AM Hanly, M Keogan, JM Ryan, JV Reynolds , Percutaneous Cholecystostomy - A safe option in the Management of Acute Biliary Sepsis in the Elderly., International Journal of Surgery, 7, (2), 2009, p94 - 99 Journal Article, 2009

O'Keeffe SA, McGrath A, Ryan JM, Byrne B, Management of a massive pulmonary embolism in a pregnant patient with mechanical fragmentation followed by delayed catheter-directed thrombolysis in the early postpartum period. , Journal of Maternal Fetal and Neonatal Medicine, 21, (8), 2008, p591 - 594 Journal Article, 2008

O'Regan, GM, Watson, R, Orr, D, O'Donovan, D, Russell, J, Phelan, E, Ryan, M, Brosnahan, O, Irvine, A, Management of vascular birthmarks: review of a multidisciplinary clinic., Irish Medical Journal, 100, (4), 2007 Journal Article, 2007 URL

Johnson C, Tuite D, Pritchard R, Reynolds J, McEniff N, Ryan JM, Use of Provocative Angiography to Localise site in Recurrent Gastrointestinal Bleeding., Cardiovascular and InterventionalRadiology, 30, (5), 2007, p1042 - 1046 Journal Article, 2007

Farrelly C, Ryan JM, Advances in Interventional Radiology in the Treatment of Liver Cancer, European Oncological Disease, 1, (2), 2007, p68 - 72 Journal Article, 2007

Sheehy N, Ford S, McDermott R, Young V, Ryan JM, Ultrasonographically guided percutaneous embolization of a pulmonary pseudoaneurysm., Journal of vascular and interventional radiology : JVIR, 17, (5), 2006, p895-8 Journal Article, 2006

Miller MJ, Smith TP, Ryan JM., Sepsis in the interventional radiology patient., Techniques in Vascular Interventional Radiology, 9, (2), 2006, p64 - 68 Journal Article, 2006

Beddy P, Ryan JM, Antibiotic prophylaxis in interventional radiology- anything new?, Techniques in Vascular Interventional Radiology, 9, (2), 2006, p69 - 76 Journal Article, 2006

Tuite DJ, Ryan JM, Johnston C, Brophy DP, McEniff N, Ureteroiliac fistula : a late sequelae of radiotherapy and longterm ureteric stent placement. , Clinical Radiology, 61, (6), 2006, p531 - 534 Journal Article, 2006

JM Ryan, L Wilson, Central Venous Catheters - Uses, Issues and Management., The Irish Journal of Clinical Medicine, 36, (7), 2006, p14 - 18 Journal Article, 2006

Provocative mesenteric angiography in the setting of acute gastrointestinal bleeding. , McNally S, Ryan JM , Radiology, RSNA, Chicago, USA, 2006, 2006 Conference Paper, 2006

Ryan JM, Smith TP., Current issues in antibiotic prophylaxis for the interventional radiologist, Journal of Vascular and Interventional Radiology, 15, 2004, p547 - 556 Journal Article, 2004

Ryan JM, Reddan DN, Smith TP., Transhepatic catheter placement for dialysis access in patients with occluded peripheral veins. , Radiology, 232, (1), 2004, p246 - 251 Journal Article, 2004

'Use of a Cutting Balloon for treating resistant high-grade dialysis graft stenosis' in, editor(s)Moneta GL. , Mosby Year Book of Vascular Surgery, New York, Mosby, 2004, pp300 - 305, [JM Ryan.] Book Chapter, 2004

Smith TP. Ryan J., Sepsis in the vascular-interventional patient. , Journal of Vascular and Interventional Radiology, 15, 2004, p317 - 325 Journal Article, 2004

Ryan BM, Stockbrugger RW, Ryan JM., A Pathophysiological, endoscopic and radiological approach to the assessment and management of gastric varices., Gastroenterology, 126, 2004, p1175 - 1189 Journal Article, 2004

Smith TP, Presson TL, Heneghan MA, Ryan JM, Transjugular Liver Biopsy in patients with Liver Dysfunction: A retrospective review of 410 consecutive procedures using an 18-gauge automated core biopsy needle., The American Journal of Roentgenology, 180, 2003, p167 - 172 Journal Article, 2003

Ryan JM, Dumbleton SA, Smith TP. , Use of a Cutting Balloon for treating resistant high-grade dialysis graft stenosis - technical innovation., The American Journal of Roentgenology, 180, (4), 2003, p1072 - 1074 Journal Article, 2003

JM Ryan , Use of preemptive analgesia in treating post procedural UAE pain. , JVIR, Society of Interventional Radiology, Salt Lake City, Utah,, 2003, 2003 Conference Paper, 2003

Ryan JM, Dumbleton SA, Doherty J, Smith TP. , Use of a covered stent (Wallgraft) for treatment of pseudoaneurysms of dialysis bridge grafts and fistulae. , The American Journal of Roentgenology, 180, (4), 2003, p1067 - 1071 Journal Article, 2003

Atkins BZ, Ryan JM, Grey JL. , Treatment of celiac artery aneurysm with endovascular stent grafting., Vascular and Endovascular Surgery, 37, 2003, p367 - 373 Journal Article, 2003

Ryan JM, Smith TP. , Simplified Pain Protocol for Uterine Artery Embolization., European Congress of Radiology, Vienna, 2003, 2003 Conference Paper, 2003

Welsby I, Ryan JM, Booth JV, Flanagan E, Messier R, Borel C., Bispectral Index (BIS) in the diagnosis of periprocedural stroke and its role in early Stroke Thrombolysis., Anaesthesia and Analgesia, 96, 2003, p435 - 437 Journal Article, 2003

Brown SD, Ryan JM. , Traumatic injury of the pelvis causing compression and acute critical stenosis of a common iliac artery stent with resultant critical ischemia: successful treatment with transbrachial balloon angioplasty. , Journal of Trauma, 54, 2003, p190 - 192 Journal Article, 2003

Atkins BZ, Ryan JM, Gray JL. , Celiac artery aneurysm management by Endovascular Stent Grafting. , International Endovascular Laparoscopic Congress. , Quebec City, Canada,, 2003, 2003 Conference Paper, 2003

Ryan BM, Stockbrugger RW, Ryan JM., TIPS for gastric varices. , Gut, 52, 2003, p772 - 773 Journal Article, 2003

Ryan JM, Doherty J, Smith TP. , The use of covered stents for salvage of dialysis grafts and fistulae with pseudoaneurysm, JVIR, Society of Interventional Radiology, Salt Lake City, Utah,, 2003, 2003 Conference Paper, 2003

Ryan JM, Dumbleton SA, Doherty J, Smith TP. , Use of a covered stent (Wallgraft) for treatment of pseudoaneurysms of dialysis bridge grafts and fistulae. , Society of Interventional Radiology, Salt Lake City, Utah,, March 2003., 2003 Conference Paper, 2003

Dumbleton SA, Ryan JM, Smith TP. , A single US centers initial experience with the retrievable Gunther Tulip filter. , Radiology, RSNA, Chicago, USA, 2002, 2002 Conference Paper, 2002

Schima W, Fugger R, Schober E, Oettl C, Ryan JM, Novacek G. , Diagnosis and Staging of Pancreatic Cancer: Comparison of Mangafodipir-enhanced MRI and Contrast-enhanced Helical Hydro-CT. , The American Journal of Roentgenology, 170, 2002, p714 - 724 Journal Article, 2002

Ba-Ssalamah A, Schima W, Schmook MT, Linnau KF, Schibany N, Helbich T, Reimer P, Ryan JM, Mann F. , Atypical Focal Nodular Hyperplasia of the Liver: Imaging features of non-specific and liver-specific MR contrast agents., The American Journal of Roentgenology, 179, (6), 2002, p1447 - 1456 Journal Article, 2002

'Radiologic Gastrostomy and Gastrojejunostomy'. in, editor(s)Bakal C, Silberzweig J, Cynamon J. and Sprayregen S. , Principles and Practice of Vascular and Interventional Radiology. , New York, Thieme Medical Press, 2002, pp123 - 130, [ Ryan JM, Dawson S.] Book Chapter, 2002

Provocative Bleeding Studies with Thrombolytic Agents in Patients with Non-Localized Gastrointestinal Bleeding., Ryan JM, Dumbleton SA, Smith TP., European Congress of Radiology, Vienna, Austria, 2002, 2002 Conference Paper, 2002

Ryan JM, Gainey M, Glasson J, Doherty J, Smith TP , Simplified Pain Protocol after Uterine Artery Embolization., Radiology, 224, 2002, p610 - 612 Journal Article, 2002

Smith TP, Ryan JM, Brodwater B. , Acute Pulmonary Thromboembolism: Comparison of the Diagnostic Capabilities of Conventional Film Screen and Digital Angiography., Chest, 122, 2002, p968 - 972 Journal Article, 2002

Presson T, Ryan JM, Dumbleton SA, Suhocki PV, Smith TP. , Transjugular Liver Biopsy - Experience in 223 Cases. , JVIR, Society of Interventional Radiology, San Antonio, Texas, 2001, 2001 Conference Paper, 2001

Ryan JM, Cranley R, Dumbleton SA, Smith TP. , Uterine Artery Embolization for Symptomatic Fibroid Disease - Providing a Service without Ob/Gyn Service Participation-The Trials and the Tribulations. , RSNA, Chicago, USA, 2001, 2001 Conference Paper, 2001

Dumbleton SA, Ryan JM, Suhocki PV, Newman GE, Smith TP., ASH Dialysis Catheter Placement using a Monorail Technique- A Decrease in Incidence of Air Embolism and Bleeding. , Radiology, RSNA, Chicago, USA, 2001, 2001 Conference Paper, 2001

Ryan JM, Crawford S, Dumbleton SA, Suhocki PV, Smith TP., Percutaneous Treatment of Congenital Vascular Malformations - An Institutional Experience., JVIR, Society of Interventional Radiology, San Antonio, Texas, 2001, 2001 Conference Paper, 2001

Smith TP, Ryan JM, Dumbleton SA, Suhocki PV. , Digital Pulmonary Angiography versus Cut-film Pulmonary angiography. , JVIR, Society of Interventional Radiology, San Antonio, Texas, 2001, 2001 Conference Paper, 2001

Ryan JM, Key SM, Dumbleton SA, Smith TP., Provocative Mesenteric Bleeding Studies with tPA, heparin and tolazoline in patients with non-localized Lower Gastrointestinal Bleeding., Journal of Vascular and Interventional Radiology, 12, 2001, p1273 - 1277 Journal Article, 2001

Ba-Ssalamah A, Schima W, Schmook MT, Linnau KF, Schibany N, Helbich T, Reimer P, Ryan JM, Mann F. , , Atypical Focal Nodular Hyperplasia of the Liver: Imaging features of non-specific and liver-specific MR contrast agents., , Annual Scientific Meeting of The American Roentgen Ray Society, Seattle, USA, April 2001, 2001 Conference Paper, 2001

Rougier-Chapman D, Key SM, Ryan JM., Uterine Fibroid Embolization for the treatment of symptomatic fibroid Disease., Journal of Applied Radiology , 30, (9), 2001, p11 - 19 Journal Article, 2001

Ryan JM, Suhocki PV, Smith TP., Coil Embolization of Segmental Arterial Mediolysis of the Hepatic Artery., Journal of Vascular and Interventional Radiology, 11, 2000, p865 - 868 Journal Article, 2000

Ryan JM, Suhocki PV, Newman GE, Smith TP, Holbrook M., Radiologic Gastrostomy Tube Placement -To Gastropexy or Not to Gastropexy? - A Randomized Prospective Study. , JVIR, Society of Interventional Radiology, San Diego, USA, 2000, 2000 Conference Paper, 2000

Hewitt J, Ryan JM, Pappas J, Suhocki PV, Smith TP. , Intervention in Axillary Necklace Dialysis Grafts-An Institutional Experience. , JVIR, Society of Interventional Radiology, San Diego, USA, 2000, 2000 Conference Paper, 2000

Ryan JM, Dupuy D, Pitman M, Boland GW, Hahn PF, Mueller PR. , Metastases to the Liver from Extraskeletal Myxoid Chondrosarcoma: Successful Treatment with Percutaneous Ethanol Injection., Clinical Radiology, 55, 2000, p214 - 217 Journal Article, 2000

Brodwater BK, Silber JS, Smith TP, Suhocki PV, Ryan JM, Newman GE. , Conversion of Indwelling Chest Port Catheters to Tunnelled Central Venous Catheters., Journal of Vascular and Interventional Radiology, 11, 2000, p1137 - 1142 Journal Article, 2000

Ryan JM, Pappas J, Hedlund LJ, Suhocki PV, Smith TP. , Early Experience of Intervention and Stenting of Axillo-Atrial Dialysis Grafts. , JVIR, Society of Interventional Radiology, San Diego, USA, 2000, 2000 Conference Paper, 2000

'Percutaneous abscess drainage in the abdomen'. in, editor(s)Gore, Levine and Laufer- , Textbook of Gastro-Intestinal Radiology, 2nd Edition. , Philadelphia, WB Saunders, 2000, pp1066 - 1086, [Ryan JM, Mueller PR. ] Book Chapter, 2000

Brodwater B, Smith TP, Newman GE, Suchocki PV, Ryan JM. , Conversion of indwelling port catheters to tunneled central venous catheters in a high risk patient population. , JVIR, Society of Interventional Radiology, Orlando, USA, 1999, 1999 Conference Paper, 1999

Ryan JM, Ryan BM. , The use of autologous fibrin glue in the treatment of perirectal fistula: A combined radiologic and colonoscopic approach., Radiology, RSNA, Chicago, USA, 1998, 1998 Conference Paper, 1998

Schima W, Ryan JM, Harisinghani MG. Schober E, Pokieser, Denk E, Stacher G. , Radiographic detection of Achalasia: Diagnostic accuracy of Videofluoroscopy. , Clinical Radiology, 53, 1998, p372 - 375 Journal Article, 1998

Ryan JM, Boland GW, Murphy BL, Mueller PR. , The use of the transgluteal route for percutaneous abscess in acute diverticulitis facilitating delayed primary surgical repair. , The American Journal of Roentgenology, 170, 1998, p1189 - 1193 Journal Article, 1998

Ryan JM, Ryan BM, Hahn PF, Mueller PR. , Alendronate induced esophagitis: a cause of severe esophagitis and long esophageal stricture- Radiographic features with endoscopic correlation., Radiology, RSNA, Chicago, USA, 1998, 1998 Conference Paper, 1998

Ryan JM, Ryan BM, Hahn PF, Mueller PR., The how and why of performing a radiologic gastropexy - An Illustrated approach to the technique. , Radiology, RSNA, Chicago, USA, 1998, 1998 Conference Paper, 1998

Ryan JM, Hahn PF, Mueller PR. , How to perform a radiologic gastropexy - An Illustrated step-by-step approach to the technique , Academic Radiology, The Asssociation of University Radiologists, New Orleans, USA, 1998, 1998 Conference Paper, 1998

Image Guided Pancreatic Biopsy: Development, Indications, and Complications in, editor(s)Centano B, Pitman M. , Fine Needle Aspiration Biopsy of the Pancreas, Boston, Butterworth-Heinemann, 1998, pp1 - 4, [Ryan JM, Hahn PF, Mueller PR] Book Chapter, 1998

Ryan JM, Kelsey P, Ryan BM, Mueller PR., Alendronate-induced esophagitis - A recently recognized form of severe esophagitis with esophageal stricture -Radiographic features. , Radiology, 206, 1998, p398 - 391 Journal Article, 1998

Pancreatic Fine Needle Aspiration Biopsy: Imaging, Equipment and Technique in, editor(s)Centano B, Pitman M. , Fine Needle Aspiration Biopsy of the Pancreas, Boston, Butterworth-Heinemann, 1998, pp5 - 11, [ Ryan JM, Hahn PF, Mueller PR. ] Book Chapter, 1998

Ryan JM, Hahn PF, Mueller PR. , Utilizing urokinase in the treatment of intra-abdominal hematomas - A suggested protocol. , Academic Radiology, The Asssociation of University Radiologists, New Orleans, USA, 1998, 1998 Conference Paper, 1998

Ryan JM, Hahn PF, Harisinghani M, Wood B, Saini S, Mueller PR., A Protocol for performing percutaneous radiologic gastrostomy and gastro-jejunostomy in patients with ascites. , The American Journal of Roentgenology, 171, 1998, p1003 - 1008 Journal Article, 1998

Wood B, Ryan JM , Dretler S, Mueller PR. , Urological Applications of 3-D CT and Virtual Reality Endoscopy., Urology, The New England Section of the American Urological Association, Boston, USA, 1997, 1997 Conference Paper, 1997

Ryan JM, Harisinghani MG, Schima W, Saini S, Mueller PR., Percutaneous Fine-Needle Aspiration Biopsy of the Pancreas: Current Practice and Concepts., Indian Journal of Radiology and Imaging, 7, 1997, p54 - 57 Journal Article, 1997

Ryan JM, Boland GW, Murphy BL, MJ Lee, Mueller PR. , Percutaneous Ultrasonic Lithotrypsy in patients with horseshoe kidneys. , The American Journal of Roentgenology, 169, 1997, p447 - 451 Journal Article, 1997

Saini S, Harisinghani MG, Ryan JM, Schima W, Mueller PR., Cost-analysis Comparing Computed Tomography and Intravenous Urography in Evaluating Flank Pain., American Journal of Roentgenology, Annual Scientific Meeting of The American Roentgen Ray Society, Boston, USA, 1997, 1997 Conference Paper, 1997

Balestrero LM, Wood BJ, Ryan JM, Boland GW, Mueller PR. , Outcomes in patients undergoing intracavitary urokinase for treatment of complex intrapleural collections. , Radiology, RSNA, Chicago, USA, 1997, 1997 Conference Paper, 1997

Schima W, Ryan JM, Harisinghani MG, Hahn PF, Mueller PR. , Evaluation of biliary complications after liver transplantation in children: The value of magnetic resonance cholangio-pancreatography (MRCP). , Radiology, RSNA, Chicago, USA, 1997, 1997 Conference Paper, 1997

Ryan JM, Hahn PF, Boland GW, McDowell RK, Saini S, Mueller PR. , Percutaneous Gastrostomy with T-fastener Gastropexy: Results of 316 consecutive procedures. , Radiology, 203, 1997, p496 - 500 Journal Article, 1997

Wood BJ, Boland GW, Ryan JM, Mueller PR, Zeman RK. , The inflammatory and idiopathic diseases of the gallbladder. , Radiology, RSNA, Chicago, USA, 1997, 1997 Conference Paper, 1997

Ryan JM, Harisinghani MG, Schima W, Mueller PR. , The adjunctive utilization of urokinase in patients undergoing percutaneous catheter drainage of complex intraabdominal collections. , Radiology, RSNA, Chicago, USA, 1997, 1997 Conference Paper, 1997

Ryan JM, Hahn PF, Mueller PR., Fine-needle aspiration biopsy of Abdominal Mesenchymal Tumors - Is it worth it?, American Journal of Roentgenology, Annual Scientific Meeting of The American Roentgen Ray Society, Boston, USA, 1997, 1997 Conference Paper, 1997

Harisinghani MG, Ryan JM, Schima W, Yoder IC, Saini S., Magnetic Resonance Imaging of the Uterus. , Indian Journal of Radiology and Imaging, 6, 1997, p173 - 182 Journal Article, 1997

Ryan JM, Boland GW, Walton S, Mueller PR. , Transgluteal Drainage of Pelvic Fluid Collections in 95 patients: Indications, Outcomes and Complications. , European Radiology, ECR, Vienna, Austria, 1997, 1997 Conference Paper, 1997

Harisinghani MG, Ryan JM, Stein B, Yoder I, Mueller PR., The value of hysterosonosalpingography in the diagnosis of endometrial and subendometrial disease. , Radiology, RSNA, Chicago, USA, 1997, 1997 Conference Paper, 1997

Imam N, Saini S, Harisinghani MG, Schima W, Ryan JM, Mueller PR. , Optimizing Slice Thickness and Interslice Gap for CT detection of Focal Liver Lesions: Theoretical and Phantom analysis., American Journal of Roentgenology, Annual Scientific Meeting of The American Roentgen Ray Society, Boston, USA, 1997, 1997 Conference Paper, 1997

Ryan JM, Harisinghani MG, Wood B, Mueller PR. , Percutaneous gastrostomy in patients with malignant ascites: The role of gastropexy and serial paracentesis in a series of 44 consecutive patients. , Radiology, RSNA, Chicago, USA, 1997, 1997 Conference Paper, 1997

Harisinghani MG, Saini S, Schima W, Ryan JM, McNicholas M, Mueller PR., Simethicone-coated cellulose as an oral contrast agent for ultrasound. , Radiology, RSNA, Chicago, USA, 1996, 1996 Conference Paper, 1996

Ryan JM, Boland GW, Lee MJ, Mueller PR. , Intracavitary urokinase therapy as an adjunct to percutaneous drainage in patients with a multi-loculated empyema. , The American Journal of Roentgenology, 167, 1996, p643 - 647 Journal Article, 1996

Ryan JM, Hahn PF, Mueller PR. , Percutaneous fine-needle aspiration biopsy versus core biopsy in the diagnosis of abdominal mesenchymal tumors., Abdominal Radiology, he Society of Gastro-Intestinal Radiologists,, Bermuda, 1996, 1996 Conference Paper, 1996

Boland GW, Graf O, Ryan JM, Hahn PF, Mueller PR. , Arterial versus portal venous phase spiral CT for pancreatic carcinoma: ROC analysis of tumor detectability, conspicuity and operability., Radiology, RSNA, Chicago, USA, 1996, 1996 Conference Paper, 1996

Ryan JM, Schima W, Harisinghani MG, Mueller PR., Radiologic Gastrostomy and Gastrojejunostomy: Indications and Complications., Indian Journal of Radiology and Imaging, 5, 1996, p119 - 125 Journal Article, 1996

Harisinghani MG, Schima W, Ryan JM, Saini S, Magnetic Resonance Imaging of Focal Hepatic Masses. , Indian Journal of Radiology and Imaging, 6, 1996, p127 - 135 Journal Article, 1996

Ryan JM, Schima W, Harisinghani MG, Hahn PF, Mueller PR., Radiologic gastrostomy with T-fastener gastropexy : Experience in 316 consecutive patients. , Radiology, RSNA, Chicago, USA, 1996, 1996 Conference Paper, 1996

Schima W, Schober E, Denk D, Pokieser P, Ryan JM, Herold CJ., Videofluoroscopic evaluation of complications after treatment of Laryngo-pharangeal cancer. , Radiology, RSNA, Chicago, USA, 1996, 1996 Conference Paper, 1996

Ryan JM, Boland GW, Harisinghani MG, Schima W, Mueller PR., Patients with CT diagnosis of acute diverticulitis: Incidence of unsuspected neoplasm., Radiology, RSNA, Chicago, USA, 1996, 1996 Conference Paper, 1996

Non-Peer-Reviewed Publications

J Mark Ryan , My Experience as a Volunteer Interventional Radiologist in Vietnam, Intervention Quarterly, 3, (4), 2015, p24 - 25 Journal Article, 2015

Ryan JM., Misinterpretation of postembolization syndrome after conservative treatment of fibroids. , Journal of Vascular and Interventional Radiology, 15, 2004, p99 - 100 Journal Article, 2004

Ryan JM, Smith TP., The Safety of Uterine Artery Embolization. , Journal of Vascular and Interventional Radiology, 15, 2004, p99 - 100 Journal Article, 2004

Ryan JM, Glasson J, Gainey M, Doherty J, Smith TP., Reply: Simplified Pain Protocol for Uterine Artery Embolization. , Radiology, 224, (6), 2002, p610 - 612 Journal Article, 2002

Ryan JM, Key SM, Dumbleton SA, Smith TP., Provocative Mesenteric Bleeding Studies with tPA, heparin and tolazoline in Patients with non-localized Lower Gastrointestinal Bleeding. , Journal of Vascular and Interventional Radiology, 13, 2002, p548 - 549 Journal Article, 2002

Ryan JM. , "Aortic stent grafts - Current Clinical Practice." Book Review, Review of "Aortic stent grafts - Current Clinical Practice.", by Dolmach BL, Blum U , The American Journal of Roentgenology, 176, 2000, p214 Review, 2000

Research Expertise

Description

Interventional Radiology is a technologically advanced specialty that involves performing minimally invasive procedures with specialist medical devices under imaging guidance. Dr Ryan has been actively involved in clinical research for over 20 years, has published and presented more than 120 peer-reviewed scientific papers, book chapters and articles with over 1160 citations in the medical literature. Dr Ryan's areas of academic interest are in the field of Interventional Oncology which includes tumour embolization and ablation, management of visceral organ obstruction, maintenance of vascular access, pain management and palliative therapies. He also has a particular interest in urological problems associated with gynaecological malignancy and has developed new techniques and management strategies for patients with these problems. He has a specialist interest and expertise in the diagnosis and minimally-invasive treatment of acute life threatening haemorrhage as well as in vascular interventions for all aspects of vascular disease including acute thrombosis, bleeding disorders, arterial and venous obstruction, congenital vascular malformations in paediatric and adult populations, and in the treatment of acute stroke with intra-arterial pharmacological and mechanical thrombolysis. He also has a particular interest in the interventional management and treatment of chronic liver disease and in minimally invasive treatments including chemoembolisation for hepatocellular carcinoma and transjugular intrahepatic portosystemic shunts (TIPS) for portal hypertension. Dr Ryan has been involved in medical device testing, evaluation and development for over 15 years and have worked as a medical advisor to a number of medical device companies over that time. He is also involved in helping develop specialist medical care in emerging economies. With Operation Childlife (OCL) he currently provides voluntary medical care and teaching in Childrens Hospital No 2, Ho Chi Minh City, Vietnam. A similar program is under development in partnership with The Angkor Hospital for Children, Siem Reap, Cambodia. The OCL team travels to HCMC regularly and Vietnamese doctors-in-training return to Dublin for secondments to learn new techniques (www.operationchildlife.com). - www.researchgate.net/profile/J_Mark_Ryan

Projects

  • Title
    • Management of Obstructive Uropathy in patients with cervical cancer
  • Summary
    • Collaborative Project with Department of Gynaecological Oncology. Lead Collaborator Dr Noreen Gleeson.
  • Date From
    • Sept 2017
  • Title
    • Comparitive Dosimetry study in IR settings
  • Summary
    • Collaborative Project with The Department of Medical Physics -Lead Collaborator Una O Connor MPBE.
  • Title
    • Clinical Evaluation of New Embolic Device
  • Summary
    • Collaborative Project with EMBA Medical. Lead Collaborator Kevin Conlon.
  • Title
    • Retrograde transurethral ureteric stent placements in a patient population with gynaecological malignancy
  • Summary
    • A 5 year experience and audit of more than 300 procedures

Keywords

Design and evaluation of novel anti-cancer therapies; DIAGNOSTIC-RADIOLOGY; Health interventions and innovations ; Health outcomes;Health Informatics ;Health Management ; Radiology ; INTERVENTIONAL NEURORADIOLOGY; INTERVENTIONAL RADIOLOGY; Medical Devices; Radiology; THERAPEUTIC RADIOLOGY, INTERSTITIAL AND INTRACAVITARY

Recognition

Representations

Reviewer for Journal of Vascular and Interventional Radiology 2000-

Reviewer for American Journal of Roentgenology. 1999-

Member Host Organising Committee; European Congress of Interventional Oncology, Dublin 2016 2016

Examiner European Board of Interventional Radiology 2011-

Board and Committee Member Operation Childlife. 2015

Fellow of the Cardiovascular Interventional Society of Europe 2009-

Faculty Member at SIR, CIRSE, ISET, GEST, ECIO, SEAS 1999- Present

Awards and Honours

Graduated Trinity College Dublin with Honours in Surgery, Psychiatry & Ob/Gyn 1988

The Sir John William Moore Prize Medal (1st), Meath Hospital, Trinity College Dublin, Final Medical Year 1988

AAUR Award for Most Promising Junior Faculty, American Association of University Radiologists 1998

European Congress of Radiology. Distinction Award. Vienna 2010 2010

ESTHER/Irish Aid Grant 2016 ( # 26791) 2016

Memberships

Fellow of The Royal College of Radiologists, London 1995 – Present

Fellow of The Faculty of Radiologists in The Royal College of Surgeons in Ireland 1995 – Present

Fellow of The Cardiovascular and Interventional Radiological Society of Europe (FCIRSE) 2004 – Present

Member of The Society of Interventional Radiology (SIR) 1998 – Present

Member of The Cardiovascular Interventional Society of Europe (CIRSE) 1997 – 2004

Member of The Irish Society of Interventional Radiology (ISIR) 2004 – Present

Member of The Radiological Society of North America (RSNA) 1995 – Present

Member of The American Roentgen Ray Society (ARRS) 1995 – Present

Member of The European Congress of Radiology 1997 – Present

EBIR for Cardiovascular Interventional Society of Europe (CIRSE) 2009 – Present

Board Member of Operation Childlife and medical volunteer OCL (www.operationchildlife.com) 2009 – Present