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Gasulla Ó, Ledesma-Carbayo MJ, Borrell LN, Fortuny-Profitós J, Mazaira-Font FA, Barbero Allende JM, Alonso-Menchén D, García-Bennett J, Del Río-Carrrero B, Jofré-Grimaldo H, Seguí A, Monserrat J, Teixidó-Román M, Torrent A, Ortega MÁ, Álvarez-Mon M, Asúnsolo A. Enhancing physicians' radiology diagnostics of COVID-19's effects on lung health by leveraging artificial intelligence. Front Bioeng Biotechnol 2023; 11:1010679. [PMID: 37152658 PMCID: PMC10157246 DOI: 10.3389/fbioe.2023.1010679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 03/14/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction: This study aimed to develop an individualized artificial intelligence model to help radiologists assess the severity of COVID-19's effects on patients' lung health. Methods: Data was collected from medical records of 1103 patients diagnosed with COVID-19 using RT- qPCR between March and June 2020, in Hospital Madrid-Group (HM-Group, Spain). By using Convolutional Neural Networks, we determine the effects of COVID-19 in terms of lung area, opacities, and pulmonary air density. We then combine these variables with age and sex in a regression model to assess the severity of these conditions with respect to fatality risk (death or ICU). Results: Our model can predict high effect with an AUC of 0.736. Finally, we compare the performance of the model with respect to six physicians' diagnosis, and test for improvements on physicians' performance when using the prediction algorithm. Discussion: We find that the algorithm outperforms physicians (39.5% less error), and thus, physicians can significantly benefit from the information provided by the algorithm by reducing error by almost 30%.
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Affiliation(s)
- Óscar Gasulla
- Hospital Universitari de Bellvitge-Universitat de Barcelona, L´Hospitalet de Llobregat, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
| | - Maria J. Ledesma-Carbayo
- Biomedical Image Technologies, Universidad Politécnica de Madrid & CIBER BBN, ISCIII, Madrid, Spain
| | - Luisa N. Borrell
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, University of New York, New York, NY, United States
| | | | - Ferran A. Mazaira-Font
- Departament d'Econometria, Estadística i Economia Aplicada-Universitat de Barcelona, Barcelona, Spain
| | - Jose María Barbero Allende
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain
| | - David Alonso-Menchén
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain
| | - Josep García-Bennett
- Hospital Universitari de Bellvitge-Universitat de Barcelona, L´Hospitalet de Llobregat, Spain
| | - Belen Del Río-Carrrero
- Hospital Universitari de Bellvitge-Universitat de Barcelona, L´Hospitalet de Llobregat, Spain
| | - Hector Jofré-Grimaldo
- Hospital Universitari de Bellvitge-Universitat de Barcelona, L´Hospitalet de Llobregat, Spain
| | - Aleix Seguí
- Campus Nord, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - Jorge Monserrat
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Miguel Teixidó-Román
- Departament d'Econometria, Estadística i Economia Aplicada-Universitat de Barcelona, Barcelona, Spain
| | - Adrià Torrent
- Departament d'Econometria, Estadística i Economia Aplicada-Universitat de Barcelona, Barcelona, Spain
| | - Miguel Ángel Ortega
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- *Correspondence: Angel Asúnsolo, ; Melchor Álvarez-Mon, ; Miguel Ángel Ortega,
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Service of Internal Medicine and Immune System Diseases-Rheumatology, University Hospital Príncipe de Asturias, (CIBEREHD), Alcalá de Henares, Spain
- *Correspondence: Angel Asúnsolo, ; Melchor Álvarez-Mon, ; Miguel Ángel Ortega,
| | - Angel Asúnsolo
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, University of New York, New York, NY, United States
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- *Correspondence: Angel Asúnsolo, ; Melchor Álvarez-Mon, ; Miguel Ángel Ortega,
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Jeong HY, Song SG, Nam WJ, Lee JK. Puborectalis Muscle Involvement on Magnetic Resonance Imaging in Complex Fistula: A New Perspective on Diagnosis and Treatment. Ann Coloproctol 2020; 37:51-57. [PMID: 32972097 PMCID: PMC7989561 DOI: 10.3393/ac.2020.08.26.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022] Open
Abstract
PURPOSE According to recent studies, magnetic resonance imaging (MRI) assessment of complex fistulas provides a significant benefit compared to fistulography, computed tomography, and ultrasonography. The aim of this study was to describe the accuracy of MRI and the importance of identifying puborectalis muscle involvement on MRI in patients with complex fistula. METHODS All patients who were clinically diagnosed with 'complex' or showed multiple fistula tracts underwent fistula MRI. Eligible patients were consecutive patients who underwent fistula MRI between September 2018 and September 2019 at our hospital. RESULTS A total of 83 patients (74 males, 9 females; 116 tracts) were included in this study. The sensitivity and specificity of MRI in diagnosing fistula tracts were 94.8% and 98.2%, respectively. The sensitivity and specificity in identifying internal opening were 93.9% and 97.3%, respectively. Of the 35 patients with puborectalis muscle involvement in the MRI, 31 images of suprasphincteric-type patients on the Park's classification were classified. The patients of puborectalis involvement were divided into 2 groups according to the surgical procedure that was performed. There were 12 sphincter-saving procedures and 19 sphincter division procedures performed. Recurrence was seen in 2 patients in the sphincter-saving procedure group, while no case was seen in the sphincter division procedure group. Five complications were found in the sphincter division procedure group, of which 2 reported incontinence. CONCLUSION Fistula MRI is a highly accurate examination for evaluating complex fistulas, and the puborectalis muscle involvement findings are very important for diagnosis and treatment.
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Affiliation(s)
| | - Seok Gyu Song
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
| | - Woo Jung Nam
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
| | - Jong Kyun Lee
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
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3
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Halligan S, Tolan D, Amitai MM, Hoeffel C, Kim SH, Maccioni F, Morrin MM, Mortele KJ, Rafaelsen SR, Rimola J, Schmidt S, Stoker J, Yang J. ESGAR consensus statement on the imaging of fistula-in-ano and other causes of anal sepsis. Eur Radiol 2020; 30:4734-4740. [PMID: 32307564 PMCID: PMC7431441 DOI: 10.1007/s00330-020-06826-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 03/19/2020] [Indexed: 12/15/2022]
Abstract
Objectives To develop imaging guidelines for patients with fistula-in-ano and other causes of anal sepsis. Methods An expert group of 13 members of the European Society of Gastrointestinal and Abdominal Radiology (ESGAR) used a modified Delphi process to vote on a series of consensus statements relating to the imaging of patients with potential anal sepsis. Participants first completed a questionnaire to gather practice information and to help frame the statements posed. Results In the first round of voting, the expert group scored 51 statements of which 45 (88%) achieved immediate consensus. The remaining 6 statements were redrafted following input from the expert group and consensus achieved for all during a second round of voting, including an additional statement drafted. No statement was rejected due to a lack of consensus. After redrafting to improve clarity, 53 individual statements were presented. Conclusion These expert consensus statements can be used to guide appropriate indication, acquisition, interpretation and reporting of medical imaging for patients with potential fistula-in-ano and other causes of anal sepsis. Key Points • Medical imaging, notably magnetic resonance imaging, is used widely for the diagnosis and monitoring of fistula-in-ano and other causes of anal and perianal sepsis. • While the indexed medical literature is clear that diagnostic accuracy is potentially excellent, this depends on competent image acquisition and interpretation. • In order to facilitate this, the European Society of Gastrointestinal and Abdominal Radiology (ESGAR) has produced expert consensus guidelines regarding the imaging of fistula-in-ano and related conditions. Electronic supplementary material The online version of this article (10.1007/s00330-020-06826-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- S Halligan
- Centre for Medical Imaging, University College London UCL, Charles Bell House, 43-45 Foley Street, London, W1W 7TS, UK.
| | - D Tolan
- Department of Radiology, St James's University Hospital, Leeds Teaching Hospitals Trust, Leeds, UK
| | - M M Amitai
- Department of Radiology, Sackler Faculty of Medicine, Tel Aviv University, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - C Hoeffel
- Department of Radiology, Hôpital Robert-Debré, Reims, France
| | - S H Kim
- Department of Radiology, Inje University College of Medicine, Haeundae Paik Hospital, Busan, South Korea
| | - F Maccioni
- Department of Radiological Sciences, Sapienza University of Rome, Policlinico Umberto I Hospital, Rome, Italy
| | - M M Morrin
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - K J Mortele
- Division of Abdominal Imaging, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - S R Rafaelsen
- Colorectal Centre of Excellence, University Hospital of Southern Denmark, Vejle, Denmark
| | - J Rimola
- Radiology Department, Hospital Clinic de Barcelona, Barcelona, Spain
| | - S Schmidt
- Department of Radiology, University Hospital, CHUV, Lausanne, Switzerland
| | - J Stoker
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - J Yang
- Department of Radiology, Concord Hospital, Sydney, Australia
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Sturm A, Maaser C, Calabrese E, Annese V, Fiorino G, Kucharzik T, Vavricka SR, Verstockt B, van Rheenen P, Tolan D, Taylor SA, Rimola J, Rieder F, Limdi JK, Laghi A, Krustiņš E, Kotze PG, Kopylov U, Katsanos K, Halligan S, Gordon H, González Lama Y, Ellul P, Eliakim R, Castiglione F, Burisch J, Borralho Nunes P, Bettenworth D, Baumgart DC, Stoker J. ECCO-ESGAR Guideline for Diagnostic Assessment in IBD Part 2: IBD scores and general principles and technical aspects. J Crohns Colitis 2019; 13:273-284. [PMID: 30137278 DOI: 10.1093/ecco-jcc/jjy114] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Andreas Sturm
- Department of Gastroenterology, DRK Kliniken Berlin I Westend, Berlin, Germany
| | - Christian Maaser
- Outpatients Department of Gastroenterology, Hospital Lüneburg, Lüneburg, Germany
| | - Emma Calabrese
- Department of Systems Medicine, University of Rome, Tor Vergata, Italy
| | - Vito Annese
- Department of Gastroenterology, Valiant Clinic & American Hospital, Dubai, UAE
| | - Gionata Fiorino
- Department of Gastroenterology, Humanitas Clinical and Research Institute, Milan, Italy
| | - Torsten Kucharzik
- Department of Internal Medicine and Gastroenterology, Hospital Lüneburg, Lüneburg, Germany
| | | | - Bram Verstockt
- Department of Gastroenterology and Hepatology, University Hospitals Leuven and CHROMETA - Translational Research in Gastrointestinal Disorders, KU Leuven, Belgium
| | - Patrick van Rheenen
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, University Medical Center Groningen, Groningen, The Netherlands
| | - Damian Tolan
- Clinical Radiology, St James's University Hospital, Leeds, UK
| | - Stuart A Taylor
- Centre for Medical Imaging, University College London, London, UK
| | - Jordi Rimola
- Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Florian Rieder
- Department of Gastroenterology, Hepatology & Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jimmy K Limdi
- Department of Gastroenterology, Pennine Acute Hospitals NHS Trust, Manchester; Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Andrea Laghi
- Department of Clinical and Surgical Translational Medicine, Sapienza - University of Rome, Rome, Italy
| | - Eduards Krustiņš
- Department of Gastroenterology, Hepatology and Nutrition, Pauls Stradins Clinical University Hospital, Riga, Latvia
| | - Paulo G Kotze
- Colorectal Surgery Unit, Catholic University of Paraná PUCPR, Curitiba, Brazil
| | - Uri Kopylov
- Department of Gastroenterology, Sheba Medical Center, Sackler School of Medicine, Tel Aviv, Israel
| | - Konstantinos Katsanos
- Department of Gastroenterology and Hepatology, University and Medical School of Ioannina, Ioannina, Greece
| | - Steve Halligan
- Centre for Medical Imaging, University College London, London, UK
| | - Hannah Gordon
- Section of Gastroenterology & Hepatology, Royal London Hospital, London, UK
| | - Yago González Lama
- Department of Gastroenterology, University Hospital Puerta De Hierro, Majadahonda Madrid, Spain
| | - Pierre Ellul
- Department of Medicine, Mater Dei Hospital, Msida, Malta
| | - Rami Eliakim
- Department of Gastroenterology, Sheba Medical Center, Sackler School of Medicine, Tel Aviv, Israel
| | - Fabiana Castiglione
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples, Naples, Italy
| | - Johan Burisch
- Department of Gastroenterology, North Zealand University Hospital; Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Paula Borralho Nunes
- Department of Anatomic Pathology, Hospital Cuf Descobertas; Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Dominik Bettenworth
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster, Germany
| | - Daniel C Baumgart
- Division of Gastroenterology, University of Alberta, Edmonton, AB, Canada
| | - Jaap Stoker
- Department of Radiology and Nuclear Medicine, Academic Medical Center AMC, University of Amsterdam, Amsterdam, The Netherlands
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Williams G, Williams A, Tozer P, Phillips R, Ahmad A, Jayne D, Maxwell-Armstrong C. The treatment of anal fistula: second ACPGBI Position Statement - 2018. Colorectal Dis 2018; 20 Suppl 3:5-31. [PMID: 30178915 DOI: 10.1111/codi.14054] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 02/16/2018] [Indexed: 02/08/2023]
Abstract
It is over 10 years since the first ACPGBI Position Statement on the management of anal fistula was published in 2007. This second edition is the result of scrutiny of the literature published during this time; it updates the original Position Statement and reviews the published evidence surrounding treatments for anal fistula that have been developed since the original publication.
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Affiliation(s)
- G Williams
- Royal Wolverhampton NHS Trust, Wolverhampton, UK
| | - A Williams
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - P Tozer
- St Mark's Hospital, Harrow, London, UK
| | | | - A Ahmad
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - D Jayne
- University of Leeds, Leeds, UK
| | - C Maxwell-Armstrong
- National Institute for Health Research Nottingham Digestive Diseases Biomedical Research Unit, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, UK
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Gallego JC, Echarri A. Role of magnetic resonance imaging in the management of perianal Crohn's disease. Insights Imaging 2018; 9:47-58. [PMID: 29143190 PMCID: PMC5825308 DOI: 10.1007/s13244-017-0579-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/05/2017] [Accepted: 09/26/2017] [Indexed: 12/18/2022] Open
Abstract
Perianal fistulas are a major problem in many patients with Crohn's disease. These are usually complex fistulas that adversely affect patients' quality of life, and their clinical management is difficult. Medical treatment sometimes achieves cessation of discharge and closure of the external opening; however, it is difficult to assess the status of the rest of the fistula tract. Magnetic resonance imaging is the method of choice with which to evaluate the condition of perianal fistulas and allows for assessment of the status of inaccessible areas. Magnetic resonance imaging also allows the clinician to evaluate other perianal manifestations of Crohn's disease that differ from the fistulas. This imaging technique is therefore a fundamental means of patient monitoring. When used in conjunction with assessment of the patient's morphological findings, it provides information that allows for both quantification of disease severity and evaluation of the response to treatment. New types of magnetic resonance sequences are emerging, such as diffusion, perfusion, and magnetisation transfer. These sequences may serve as biomarkers because they provide information reflecting the changes taking place at the molecular level. This will help to shape a new scenario in the early assessment of the response to treatments such as anti-tumour necrosis factor drugs. TEACHING POINTS • MRI is the method of choice with which to evaluate perianal fistulas. • In perianal Crohn's disease, MRI is a fundamental means of patient monitoring. • The usefulness of the Van Assche score for patient monitoring remains unclear. • New MRI sequences' diffusion, perfusion, and magnetisation transfer may serve as biomarkers.
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Affiliation(s)
- Jose C Gallego
- Department of Radiology, Complexo Hospitalario Universitario de Ferrol, Av. da Residencia s/n, 15405, Ferrol, Spain.
| | - Ana Echarri
- Department of Gastroenterology, Complexo Hospitalario Universitario de Ferrol, Ferrol, Spain
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Bhatt S, Jain BK, Singh VK. Multi Detector Computed Tomography Fistulography In Patients of Fistula-in-Ano: An Imaging Collage. Pol J Radiol 2017; 82:516-523. [PMID: 29662582 PMCID: PMC5894016 DOI: 10.12659/pjr.901523] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 12/31/2016] [Indexed: 12/18/2022] Open
Abstract
Fistula-in-ano, or perianal fistula, is a challenging clinical condition for both diagnosis and treatment. Imaging modalities such as fistulography, anal endosonography, perineal sonography, magnetic resonance imaging (MRI), and computed tomography (CT) are available for its evaluation. MRI is considered as the modality of choice for an accurate delineation of the tract in relation to the sphincter complex and for the detection of associated complications. However, its availability and affordability is always an issue. Moreover, the requirement to obtain multiple sequences to depict the fistula in detail is cumbersome and confusing for the clinicians to interpret. The inability to show the fistula in relation to normal anatomical structures in a single image is also a limitation. Multi detector computed tomography fistulography (MDCTF) is an underutilized technique for defining perianal fistulas. Acquisition of iso-volumetric data sets with instillation of contrast into the fistula delineates the tract and its components. Post-processing with thin sections allows for a generation of good quality images for presentation in various planes (multi-planar reconstructions) and formats (volume rendered technique, maximum intensity projection). MDCTF demonstrates the type of fistula, its extent, whether it is simple or complex, and shows the site of internal opening and associated complications; all in easy to understand images that can be used by the surgeons. Its capability to represent the entire pathology in relation to normal anatomical structures in few images is a definite advantage. MDCTF can be utilized when MRI is contraindicated or not feasible. This pictorial review shares our initial experience with MDCT fistulography in evaluating fistula-in-ano, demonstrates various components of fistulas, and discusses the types of fistulas according to the standard Parks classification.
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Affiliation(s)
- Shuchi Bhatt
- Department of Radio-Diagnosis, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, New Delhi, India
| | - Bhupendra Kumar Jain
- Department of Surgery, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, New Delhi, India
| | - Vikas Kumar Singh
- Department of Radio-Diagnosis, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, New Delhi, India
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Sheedy SP, Bruining DH, Dozois EJ, Faubion WA, Fletcher JG. MR Imaging of Perianal Crohn Disease. Radiology 2017; 282:628-645. [PMID: 28218881 DOI: 10.1148/radiol.2016151491] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pelvic magnetic resonance (MR) imaging is currently the standard for imaging perianal Crohn disease. Perianal fistulas are a leading cause of patient morbidity because closure often requires multimodality treatments over a prolonged period of time. This review summarizes clinically relevant anal sphincter anatomy, imaging methods, classification systems, and treatment objectives. In addition, the MR appearance of healing perianal fistulas and fistula complications is described. Difficult imaging tasks including the assessment of rectovaginal fistulas and ileoanal anastomoses are highlighted, along with illustrative cases. Emerging innovative treatments for perianal Crohn disease are now available and have the promise to better control sepsis and maintain fecal continence. Different treatment modalities are selected based on fistula anatomy, patient factors, and management goals (closure versus sepsis control). Radiologists can help maximize patient care by being familiar with MR imaging features of perianal Crohn disease and knowledgeable about what features may influence therapy decisions. © RSNA, 2017 Online supplemental material is available for this article.
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Affiliation(s)
- Shannon P Sheedy
- From the Departments of Radiology (S.P.S., J.G.F.), Internal Medicine (D.H.B., W.A.F.), and Surgery (E.J.D.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - David H Bruining
- From the Departments of Radiology (S.P.S., J.G.F.), Internal Medicine (D.H.B., W.A.F.), and Surgery (E.J.D.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Eric J Dozois
- From the Departments of Radiology (S.P.S., J.G.F.), Internal Medicine (D.H.B., W.A.F.), and Surgery (E.J.D.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - William A Faubion
- From the Departments of Radiology (S.P.S., J.G.F.), Internal Medicine (D.H.B., W.A.F.), and Surgery (E.J.D.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Joel G Fletcher
- From the Departments of Radiology (S.P.S., J.G.F.), Internal Medicine (D.H.B., W.A.F.), and Surgery (E.J.D.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
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Park JH, Oh BM, Min Y, Bang MS, Han TR. The Intra- and Inter-rater Reliability and the Learning Curve for a Simple Neurological Score for Rats. BRAIN & NEUROREHABILITATION 2016. [DOI: 10.12786/bn.2016.9.1.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Ji Hong Park
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Korea
| | - Byung-Mo Oh
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Korea
| | - Yusun Min
- Department of Rehabilitation Medicine, Kyungpook National University Medical Center, Korea
| | - Moon Suk Bang
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Korea
| | - Tai Ryoon Han
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Korea
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10
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Abstract
Perianal fistula is a clinical entity with multiple surgical treatment options. Recently, magnetic resonance imaging (MRI) has emerged as an important imaging modality in the management of perianal fistulas. It provides accurate description of the fistula within the anal canal in relation to the sphincter complex and other pelvic floor structures as well as the associated complications such as abscess. By understanding the surgical viewpoint, the appearance of perianal fistulas, associated complications, and post-treatment findings of commonly used surgical interventions can more accurately be interpreted to aid clinicians. The objective of the article is to review MRI indications and findings, radiological versus surgical classification schemes, and surgical treatment options for perianal fistulas.
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Savoye-Collet C, Savoye G, Koning E, Dacher JN, Lerebours E. Fistulizing perianal Crohn's disease: contrast-enhanced magnetic resonance imaging assessment at 1 year on maintenance anti-TNF-alpha therapy. Inflamm Bowel Dis 2011; 17:1751-8. [PMID: 21744430 DOI: 10.1002/ibd.21568] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 10/11/2010] [Indexed: 02/06/2023]
Abstract
BACKGROUND The aim of the study was to assess perianal fistulas by magnetic resonance imaging (MRI) in patients with severe fistulizing Crohn's disease (CD) using maintenance antitumor necrosis factor alpha (TNF-α) therapy and to correlate MRI changes with clinical outcome. METHODS Perineal MRI before and after a 1-year scheduled anti-TNF-α maintenance therapy was performed in 20 patients (14 females; mean age = 33.7). The Van Assche score (i.e., number of fistulas, localization, and extension, importance of T2 hyperintensity, presence of abscess) was calculated. Fistula track contrast enhancement was also used. Clinical outcome was defined as no response, response, or remission. RESULTS Response and remission were observed in respectively 40% and 35% of cases. The Van Assche score varied from 13.8 (7-20) to 6.13 (0-12) in patients with a response or remission (P < 0.05). The T2 hyperintensity follow-up value decreased in patients in response or remission (P < 0.01). T2 hyperintensity disappeared or decreased in 14 out of 15 patients in clinical response or remission as compared to one among the five nonresponding patients (P < 0.01). The decrease in Van Assche score and hyperintensity value was not significantly different in patients in remission compared to those with response. Only one patient in clinical remission had a persisting contrast enhancement on MRI, whereas contrast enhancement persisted in all other patients not in remission (P = 0.002). CONCLUSIONS The clinical benefit of maintenance anti-TNF-α therapy in perianal CD is associated with a significant improvement of the Van Assche score, particularly T2 hyperintensity. The disappearance of contrast enhancement was the only semiological MR feature associated with remission.
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Affiliation(s)
- C Savoye-Collet
- Rouen University Hospital, Radiology Department, Rouen, France.
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12
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Joyce M, Veniero JC, Kiran RP. Magnetic resonance imaging in the management of anal fistula and anorectal sepsis. Clin Colon Rectal Surg 2010; 21:213-9. [PMID: 20011419 DOI: 10.1055/s-2008-1081000] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Complex perianal disease may be extremely debilitating for the patient with significant impingement on quality of life. The accurate identification of anatomical areas of involvement and subsequent appropriate management is crucial to achieving a successful outcome when treating anorectal sepsis and anal fistulae. Magnetic resonance imaging (MRI) has become a powerful tool in the evaluation of anal anatomy. In patients with complex disease MRI is an important adjunct in delineating disease location and extent, its relationship to sphincter muscles, and in planning management. MRI also plays an important role in evaluating the response to medical and surgical therapies.
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Affiliation(s)
- Myles Joyce
- Department of Colorectal Surgery, Cleveland Clinic Foundation, Cleveland, OH 44195, USA
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13
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Abstract
Restorative proctocolectomy with IPAA is now accepted as the standard of care in most patients with a diagnosis of mucosal ulcerative or IndC requiring surgery. In patients with Crohn's colitis needing intervention, proctocolectomy with end ileostomy or subtotal colectomy with ileorectal anastomosis is still the treatment of choice. In the authors' institution they consider performing an ileal pouch for a diagnosis of Crohn's colitis requiring rectal resection provided there is no existing or previous evidence of perianal or small bowel CD. They only perform this in a well-motivated patient who understands the potential sequelae, including an increased incidence of adverse effects and reduced functional outcome, if they develop CD of the pouch. A significant amount of time must be allocated to the patient and their family when counseling them with regards to the potential surgical options and outcomes associated with each. The development of CD of the pouch is associated with a considerable pouch failure rate requiring pouch excision or indefinite ileostomy formation. It does not always herald disaster, however, and a large percentage of patients can be salvaged using a combination of medical and surgical therapy. In this patient group the maintenance of intestinal continuity and avoidance of an ostomy is often the most important factor in their perception toward quality of life. The search for a serologic or genetic marker that will predict disease outcome in this select patient group and thereby direct surgical decision making should continue. It is recommended that in the presence of Crohn's colitis the decision to perform an ileal pouch should only be made in a tertiary center under the care of gastroenterologists, histopathologists, and colorectal surgeons with experience in the management of these complex cases.
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Affiliation(s)
- Myles R Joyce
- Department of Colorectal Surgery, Digestive Disease Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue/A30, Cleveland, OH 44195, USA.
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14
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Rushton VE, Qualtrough AJE, Al-Masserah Y, Rushton MN. The influence of coronal tooth tissue in the diagnosis of apical pathosis. Int Endod J 2009; 42:603-8. [DOI: 10.1111/j.1365-2591.2009.01554.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Williams JG, Farrands PA, Williams AB, Taylor BA, Lunniss PJ, Sagar PM, Varma JS, George BD. The treatment of anal fistula: ACPGBI position statement. Colorectal Dis 2007; 9 Suppl 4:18-50. [PMID: 17880382 DOI: 10.1111/j.1463-1318.2007.01372.x] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- J G Williams
- McHale Centre, New Cross Hospital, Wolverhampton, UK.
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16
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Ardizzone S, Maconi G, Cassinotti A, Massari A, Porro GB. Imaging of perianal Crohn's disease. Dig Liver Dis 2007; 39:970-8. [PMID: 17720640 DOI: 10.1016/j.dld.2007.07.155] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Accepted: 07/24/2007] [Indexed: 02/07/2023]
Abstract
Perianal fistulas and abscesses are common complications of Crohn's disease, affecting up to 50% of patients during their disease course. Accurate diagnosis and classification of perianal disease is crucial before and during treatment to plan an adequate approach for each patient and to avoid irreversible functional consequences. Although examination under anaesthesia has been considered the gold standard for diagnosis and classification of Crohn's disease perianal fistulas, taken alone it does not have perfect accuracy, stressing the need for concomitant or alternative, non-invasive, methods of evaluation. In this context, imaging modalities assessed for diagnosis, classification and monitoring of Crohn's disease perianal fistulas include pelvic magnetic resonance imaging, anorectal endoscopic ultrasonography, transcutaneous perianal ultrasound, fistulography and computed tomography. In particular, magnetic resonance imaging and endoscopic ultrasonography findings have shown the best accuracy, and the ability to influence therapeutic management of these patients. For transcutaneous perianal ultrasound too, good preliminary data have been reported. This paper reviews the available data on imaging methods for the management of perianal Crohn's disease.
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Affiliation(s)
- S Ardizzone
- Department of Clinical Science, L. Sacco University Hospital, Milan, Italy.
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17
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Abstract
The management of patients with persistent perianal fistulae depends on thorough evaluation by clinical history and examination, assessment of intestinal disease and assessment of perianal disease. The main therapeutic options are medical and surgical treatment and their appropriate integration is essential for the optimal management of the patients. Medical treatment includes antibiotics, azathioprine or 6-mercaptopurine, infliximab and tacrolimus or cyclosporine. Surgical treatment includes fistulotomy, placement of setons, endorectal advancement flaps, fecal diversion and proctectomy. Fistula recurrence often occurs, possibly due to early discontinuation of medication or premature removal of setons. Using anorectal endoscopic ultrasound or magnetic resonance imaging to guide therapy, the healing rates of perianal fistula can be increased. In persistent complex perianal fistulae where medical treatment initially fails, examination under anaesthesia and placement of non-cutting setons, when necessary, combined with medical treatment results in higher healing rates.
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Affiliation(s)
- Ioannis E Koutroubakis
- Department of Gastroenterology University Hospital Heraklion, P.O. Box 1352, 71110 Heraklion, Crete, Greece.
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18
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Szurowska E, Wypych J, Izycka-Swieszewska E. Perianal fistulas in Crohn's disease: MRI diagnosis and surgical planning: MRI in fistulazing perianal Crohn's disease. ACTA ACUST UNITED AC 2007; 32:705-18. [PMID: 17334876 DOI: 10.1007/s00261-007-9188-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Crohn's disease is a chronic, transmural inflammatory process of the gastrointestinal tract. It often affects the colon with the perianal area. The most common intestinal manifestations include external and/or internal fistulas and abscesses. Assessment of the activity of perianal fistulas in the course of Crohn's disease seems to be an important factor influencing therapeutic approach. Fistula's activity is evaluated by such methods as magnetic resonance imaging, anal ultrasound and examination under anaesthesia. Usefulness of imaging methods in the diagnosis of fistulas still remains to be defined.MRI is used to present a wide spectrum of perianal fistulazing Crohn's disease. Additionally, it is an important instrument revealing location, extent and severity of inflammation. It is also very helpful to detect clinically silent sepsis related to small, local inflammation. The most common method used in MR imaging to assess topography of a fistula's track, is Parks' classification.Clinical indications to MRI may include follow-up studies of a diagnosed disease, classification of fistulas' subtypes in the course of Crohn's disease, determination of the extent of fistulas' tracts and spread of an inflammatory process what can guide surgical procedures.
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Affiliation(s)
- Edyta Szurowska
- Department of Radiology Medical, University of Gdansk, Debinki St 7, 80-211, Gdansk, Poland.
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19
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Abstract
Diagnostic radiology does not have objective benchmarks for acceptable levels of missed diagnoses. Until now, data collection of radiological discrepancies has been very time consuming. The culture within the specialty did not encourage it. However, public concern about patient safety is increasing. There have been recent innovations in compiling radiological interpretive discrepancy rates which may facilitate radiological standard setting. However standard setting alone will not optimise radiologists' performance or patient safety. We must use these new techniques in radiological discrepancy detection to stimulate greater knowledge sharing, targeted instruction and teamworking among radiologists. Not all radiological discrepancies are errors. Radiological discrepancy programmes must not be abused as an instrument for discrediting individual radiologists. Discrepancy rates must not be distorted as a weapon in turf battles. Radiological errors may be due to many causes and are often multifactorial. A systems approach to radiological error is required. Meaningful analysis of radiological discrepancies and errors is challenging. Valid standard setting will take time. Meanwhile, we need to develop top-up training, mentoring and rehabilitation programmes.
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20
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FitzGerald R. Radiological error: analysis, standard setting, targeted instruction and teamworking. Eur Radiol 2005; 15:1760-7. [PMID: 15726377 DOI: 10.1007/s00330-005-2662-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2004] [Revised: 12/17/2004] [Accepted: 12/27/2004] [Indexed: 02/07/2023]
Abstract
Diagnostic radiology does not have objective benchmarks for acceptable levels of missed diagnoses. Until now, data collection of radiological discrepancies has been very time consuming. The culture within the specialty did not encourage it. However, public concern about patient safety is increasing. There have been recent innovations in compiling radiological interpretive discrepancy rates which may facilitate radiological standard setting. However standard setting alone will not optimise radiologists' performance or patient safety. We must use these new techniques in radiological discrepancy detection to stimulate greater knowledge sharing, targeted instruction and teamworking among radiologists. Not all radiological discrepancies are errors. Radiological discrepancy programmes must not be abused as an instrument for discrediting individual radiologists. Discrepancy rates must not be distorted as a weapon in turf battles. Radiological errors may be due to many causes and are often multifactorial. A systems approach to radiological error is required. Meaningful analysis of radiological discrepancies and errors is challenging. Valid standard setting will take time. Meanwhile, we need to develop top-up training, mentoring and rehabilitation programmes.
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