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Abstract
Medical imaging professionals have an accountability for both quality and safety in the care of patients that have unexpected or anticipated repeated imaging examinations that use ionizing radiation. One measure in the safety realm for repeated imaging is cumulative effective dose (CED). CED has been increasingly scrutinized in patient populations, including adults and children. Recognizing the challenges with effective dose, including the cumulative nature, effective dose is still the most prevalent exposure currency for recurrent imaging examinations. While the responsibility for dose monitoring incorporates an element of tracking an individual patient cumulative radiation record, a more complex aspect is what should be done with this information. This challenge also differs between the pediatric and adult population, including the fact that high cumulative doses (e.g.,>100 mSv) are reported to occur much less frequently in children than in the adult population. It is worthwhile, then, to review the general construct of CED, including the comparison between the relative percentage occurrence in adult and pediatric populations, the relevant pediatric medical settings in which high CED occurs, the advances in medical care that may affect CED determinations in the future, and offer proposals for the application of the CED paradigm, considering the unique aspects of pediatric care.
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Affiliation(s)
- Donald Frush
- Duke University Medical Center, Durham, North Carolina 27710, United States
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2
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Brower C, Rehani MM. Radiation risk issues in recurrent imaging. Br J Radiol 2021; 94:20210389. [PMID: 34161140 PMCID: PMC9328055 DOI: 10.1259/bjr.20210389] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 02/07/2023] Open
Abstract
Millions of patients benefit from medical imaging every single day. However, we have entered an unprecedented era in imaging practices wherein 1 out of 125 patients can be exposed to effective dose >50 mSv from a single CT exam and 3 out of 10,000 patients undergoing CT exams could potentially receive cumulative effective doses > 100 mSv in a single day. Recurrent imaging with CT, fluoroscopically guided interventions, and hybrid imaging modalities such as positron emission tomography/computed tomography (PET/CT) is more prevalent today than ever before. Presently, we do not know the cumulative doses that patients may be receiving across all imaging modalities combined. Furthermore, patients with diseases with longer life expectancies are being exposed to high doses of radiation enabling radiation effects to manifest over a longer time period. The emphasis in the past on improving justification of imaging and optimization of technique and practice has proved useful. While that must continue, the current situation requires imaging device manufacturers to urgently develop imaging technologies that are safer for patients as high doses have been observed in patients where imaging has been justified through clinical decision-support and optimized by keeping doses below the national benchmark doses. There is a need to have a critical look at the fundamental principles of radiation protection as cumulative doses are likely to increase in the coming years.
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Marcu LG, Chau M, Bezak E. How much is too much? Systematic review of cumulative doses from radiological imaging and the risk of cancer in children and young adults. Crit Rev Oncol Hematol 2021; 160:103292. [DOI: 10.1016/j.critrevonc.2021.103292] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/20/2021] [Accepted: 02/27/2021] [Indexed: 01/18/2023] Open
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Rehani MM, Nacouzi D. Higher patient doses through X-ray imaging procedures. Phys Med 2020; 79:80-86. [PMID: 33189060 DOI: 10.1016/j.ejmp.2020.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/15/2020] [Accepted: 10/18/2020] [Indexed: 02/07/2023] Open
Abstract
Medical imaging using X-rays has been one of the most popular imaging modalities ever since the discovery of X-rays 125 years ago. With unquestionable benefits, concerns about radiation risks have frequently been raised. Computed tomography (CT) and fluoroscopic guided interventional procedures have the potential to impart higher radiation exposure to patients than radiographic examinations. Despite technological advances, there have been instances of increased doses per procedure mainly because of better diagnostic information in images. However, cumulative dose from multiple procedures is creating new concerns as effective doses >100 mSv are not uncommon. There is a need for action at all levels. Manufacturers must produce equipment that can provide a quality diagnostic image at substantially lesser dose and better implementation of optimization strategies by users. There is an urgent need for the industry to develop CT scanners with sub-mSv radiation dose, a goal that has been lingering. It appears that a new monochromatic X-ray source will lead to replacement of X-ray tubes all over the world in coming years and will lead to a drastic reduction in radiation doses. This innovation will impact all X-ray imaging and will help dose reduction. For interventional procedures, the likely employment of robotic systems in practice may drastically reduce radiation exposures to operators- but patient exposure will still remain an issue. Training needs always need to be emphasized and practiced.
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Affiliation(s)
| | - David Nacouzi
- Duke University Medical Center, Durham, NC 27708, USA
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Brambilla M, Vassileva J, Kuchcinska A, Rehani MM. Multinational data on cumulative radiation exposure of patients from recurrent radiological procedures: call for action. Eur Radiol 2019; 30:2493-2501. [PMID: 31792583 DOI: 10.1007/s00330-019-06528-7] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/15/2019] [Accepted: 10/17/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To have a global picture of the recurrent use of CT imaging to a level where cumulative effective dose (CED) to individual patients may be exceeding 100 mSv at which organ doses typically are in a range at which radiation effects are of concern METHODS: The IAEA convened a meeting in 2019 with participants from 26 countries, representatives of various organizations, and experts in radiology, medical physics, radiation biology, and epidemiology. Participants were asked to collect data prior to the meeting on cumulative radiation doses to assess the magnitude of patients above a defined level of CED. RESULTS It was observed that the number of patients with CED ≥ 100 mSv is much larger than previously known or anticipated. Studies were presented in the meeting with data from about 3.2 million patients who underwent imaging procedures over periods of between 1 and 5 years in different hospitals. It is probable that an additional 0.9 million patients reach the CED ≥ 100 mSv every year globally. CONCLUSIONS There is a need for urgent actions by all stakeholders to address the issue of high cumulative radiation doses to patients. The actions include development of appropriateness criteria/referral guidelines by professional societies for patients who require recurrent imaging studies, development of CT machines with lower radiation dose than today by manufacturers, and development of policies by risk management organizations to enhance patient radiation safety. Alert values for cumulative radiation exposures of patients should be set up and introduced in dose monitoring systems. KEY POINTS • Recurrent radiological imaging procedures leading to high radiation dose to patients are more common than ever before. • Tracking of radiation exposure of individual patients provides useful information on cumulative radiation dose. • There is a need for urgent actions by all stakeholders to address the issue of high cumulative radiation doses to patients.
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Affiliation(s)
- Marco Brambilla
- Medical Physics Department, University Hospital "Maggiore della Carità", C.so Mazzini 18, 28100, Novara, Italy.
| | - Jenia Vassileva
- Radiation Protection of Patients Unit, Radiation Safety and Monitoring Section, NSRW, International Atomic Energy Agency, Vienna International Centre, PO Box 100, 1400, Vienna, Austria
| | - Agnieszka Kuchcinska
- Medical Physics Department, Maria Skłodowska Curie Memorial Cancer Centre and Institute of Oncology, Roentgena 5, 02-781, Warsaw, Poland
| | - Madan M Rehani
- Massachusetts General Hospital, 175 Cambridge Street, Suite 244, Boston, MA, 02114, USA
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Hakim A, Alexakis C, Pilcher J, Tzias D, Mitton S, Paul T, Saxena S, Pollok R, Kumar S. Comparison of small intestinal contrast ultrasound with magnetic resonance enterography in pediatric Crohn's disease. JGH OPEN 2019; 4:126-131. [PMID: 32280754 PMCID: PMC7144762 DOI: 10.1002/jgh3.12228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 05/29/2019] [Accepted: 06/30/2019] [Indexed: 12/23/2022]
Abstract
Aim To compare the diagnostic yield of small intestinal contrast ultrasonography (SICUS) with magnetic resonance enterography (MRE) in routine clinical practice in a cohort of pediatric patients investigated for Crohn's disease (CD) attending a UK tertiary center. Methods and Results Patients with suspected or established CD who underwent SICUS were identified retrospectively. SICUS was compared to conventional transabdominal ultrasound (TUS), ileocolonoscopy (IC), and MRE. The accuracy and agreement of SICUS in detecting small bowel lesions and CD-related complications were assessed using kappa (κ) coefficient statistics. A total of 93 patients (median age 15 years, range 2-17, 49 male) underwent SICUS; 58 had suspected and 35 had established CD. In suspected CD, sensitivity and specificity of SICUS in detecting CD small bowel lesions were 81.8 and 100% and for TUS 85.7 and 87.5%, respectively. In established CD, sensitivity and specificity of SICUS were 98.7 and 100% and TUS 80 and 100%, respectively. Agreement between SICUS and IC was substantial for the presence of lesions (κ = 0.73) but fair in TUS (κ = 0.31). Agreement between SICUS and IC was almost perfect for detecting strictures (κ = 0.84), with a sensitivity of 100% and specificity of 97.6%. When comparing SICUS and TUS with MRE, agreement for the presence of lesions was substantial (κ = 0.63) and moderate (κ = 0.53), respectively. Agreement between SICUS and MRE was substantial for detecting strictures (κ = 0.77) and dilatation (κ = 0.68). Conclusions SICUS offers a radiation-free alternative for assessing pediatric small bowel CD, with diagnostic accuracy that is comparable to MRE and IC, supporting its wider use in routine practice.
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Affiliation(s)
| | - Christopher Alexakis
- Department of Gastroenterology St George's University Hospitals NHS Foundation Trust London UK
| | - James Pilcher
- Department of Radiology St George's University Hospitals NHS Foundation Trust London UK
| | - Demitrios Tzias
- Department of Radiology St George's University Hospitals NHS Foundation Trust London UK
| | - Sally Mitton
- Department of Paediatric Gastroenterology St George's University Hospitals NHS Foundation Trust London UK
| | - Thankam Paul
- Department of Paediatric Gastroenterology St George's University Hospitals NHS Foundation Trust London UK
| | - Sonia Saxena
- Child Health Unit, School of Public Health Imperial College London London UK
| | - Richard Pollok
- Medical School St George's Hospital London UK.,Department of Gastroenterology St George's University Hospitals NHS Foundation Trust London UK
| | - Shankar Kumar
- Centre for Medical Imaging University College London London UK
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Baliyan V, Kordbacheh H, Serrao J, Gee MS, Yajnik V, Sahani DV, Kambadakone AR. Survey on practice patterns in imaging utilization in patients with Crohn's disease. Clin Imaging 2019; 54:91-99. [DOI: 10.1016/j.clinimag.2018.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 11/02/2018] [Accepted: 12/08/2018] [Indexed: 12/20/2022]
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Patil SA, Flasar MH, Lin J, Lingohr-Smith M, Skup M, Wang S, Chao J, Cross RK. Reduced Imaging Radiation Exposure and Costs Associated with Anti-Tumor Necrosis Factor Therapy in Crohn's Disease. Dig Dis Sci 2019; 64:60-67. [PMID: 30311154 DOI: 10.1007/s10620-018-5322-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 10/03/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Radiation exposure from diagnostic imaging may increase cancer risk of Crohn's disease (CD) patients, who are already at increased risk of certain cancers. AIM To compare imaging radiation exposure and associated costs in CD patients during the year pre- and post-initiation of anti-tumor necrosis factor (anti-TNF) agents or corticosteroids. METHODS Adults were identified from a large US claims database between 1/1/2005 and 12/31/2009 with ≥ 1 abdominal imaging scan and 12 months of enrollment before and after initiating therapy with anti-TNF or corticosteroids. Imaging utilization, radiation exposure, and healthcare costs pre- and post-initiation were examined. RESULTS Anti-TNF-treated patients had significantly fewer imaging examinations the year prior to initiation than corticosteroid-treated patients. Cumulative radiation doses before initiation were significantly higher for corticosteroid patients compared to anti-TNF patients (22.3 vs. 17.7 millisieverts, P = 0.0083). After therapy initiation, anti-TNF-treated patients had significantly fewer imaging examinations (2.9 vs. 5.2, P < 0.0001) and less radiation exposure (7.4 vs. 15.4 millisieverts, P <0.0001) than corticosteroid-treated patients in the follow-up period. Reductions in imaging costs adjusted for 1000 patient-years after initiation of therapy were - $275,090 and - $121,960 (P = 0.0359) for anti-TNF versus corticosteroid patients, respectively. CONCLUSIONS This analysis demonstrated that patients treated with anti-TNF agents have fewer imaging examinations, less radiation exposure, and lower healthcare costs associated with imaging than patients treated with corticosteroids. These benefits do not account for additional long-term benefits that may be gained from reduced radiation exposure.
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Affiliation(s)
- Seema A Patil
- University of Maryland, 685 W. Baltimore St., Suite 8-00, Baltimore, MD, 21201, USA.,Veterans Affairs, Maryland Health Care System, Baltimore, MD, USA
| | - Mark H Flasar
- Anne Arundel Gastroenterology Associates, 820 Bestgate Rd, Annapolis, MD, 21401, USA
| | - Jay Lin
- Novosys Health, 7 Crestmont Court, Flemington, NJ, 08822-6933, USA
| | | | - Martha Skup
- AbbVie, Inc, 1 N Waukegan Road, North Chicago, IL, 60064, USA
| | - Song Wang
- AbbVie, Inc, 1 N Waukegan Road, North Chicago, IL, 60064, USA
| | - Jingdong Chao
- AbbVie, Inc, 1 N Waukegan Road, North Chicago, IL, 60064, USA.,, 27 Barker Ave, Apt 616, White Plains, NY, 10601, USA
| | - Raymond K Cross
- University of Maryland, 685 W. Baltimore St., Suite 8-00, Baltimore, MD, 21201, USA.
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Triantopoulou S, Tsapaki V. Does clinical indication play a role in CT radiation dose in pediatric patients? Phys Med 2017; 41:53-57. [PMID: 28391959 DOI: 10.1016/j.ejmp.2017.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/16/2017] [Accepted: 03/20/2017] [Indexed: 01/30/2023] Open
Abstract
PURPOSE The purpose of this study was to identify the main pathologies for which CT is applied on pediatric patients and the related radiation doses as reported in the literature in order to facilitate justification and CT optimization. METHODS A critical analysis of a literature review was performed. Different search engines were used such as PubMed, Google Scholar and Science Direct. Various terms and keywords were used to locate pertinent articles such as Pediatric, Computed tomography, Radiation Dose, Organ dose, Effective dose. RESULTS The results showed that the main pathologies for which CT is applied are: Crohn's disease, hydrocephalus, cystic fibrosis and pediatric malignancies-mainly lymphoma. The related radiation dose data are extremely scarce and are in the range of 3.48-17.56, 0.2-15.3mSv, 0.14-6.20mSv, and 2.8-518.0mSv, respectively. The radiation doses reported are high especially in pediatric oncology. CONCLUSIONS Pediatric patients with malignancies are those exposed to the higher levels of radiation during CT imaging. Literature is lacking reporting of dose in Pediatric CT imaging. More studies need to be realized for the determination of radiation dose in those patients. Special protocols need to be recommended in order to reduce the exposure of children in radiation.
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Affiliation(s)
- Sotiria Triantopoulou
- Konstantopoulio General Hospital-Agia Olga, Agias Olgas 3, Nea Ionia, 142 33 Athens, Greece.
| | - Virginia Tsapaki
- Konstantopoulio General Hospital-Agia Olga, Agias Olgas 3, Nea Ionia, 142 33 Athens, Greece
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Englund H, Lidén K K, Lind T, Sundström T, Karling P. Radiation exposure in patients with inflammatory bowel disease and irritable bowel syndrome in the years 2001-2011. Scand J Gastroenterol 2017; 52:300-305. [PMID: 27832710 DOI: 10.1080/00365521.2016.1252945] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To compare cumulative ionizing radiation in patients with inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) for the years 2001-2011. To study how radiation exposure change over time in patients with newly diagnosed IBD and factors associated with radiation exposure. MATERIAL AND METHODS All radiological investigations performed between 1 January 2001 and 31 December 2011 were retrospectively recorded in patients with Crohn's disease (CD) (n = 103), ulcerative colitis (UC) (n = 304) and IBS (n = 149). Analyses were done with Mann-Whitney and Chi-Square test. RESULTS The median total cumulative radiation exposure in mSv for CD (20.0, inter quartile range (IQR) 34.8), UC (7.01, IQR 23.8), IBS (2.71, IQR 9.15) and the proportion of patients who had been exposed for more than 50 mSv during the study period (CD 19%, UC 11%, IBS 3%) were significantly higher in the patients with CD compared to patients with UC (p < .001) and IBS (p < .001), respectively. In turn, patients with UC had significantly higher doses than patients with IBS (p = .005). Risk factors for radiation exposure were female gender (CD), early onset (UC), ileocolonic location (CD), previous surgery (CD and UC), depression (IBS) and widespread pain (IBS). In newly diagnosed CD, there was a significant decline in median cumulative radiation dose in mSv (17.2 vs. 12.0; p = .048) during the study period. CONCLUSIONS Patients with CD are at greatest risk for high cumulative radiation exposure, but there is a decline in exposure during the late 2000s. Non-colectomized patients with UC and patients with IBS have a relatively low risk of cumulative radiation exposure.
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Affiliation(s)
- Hanna Englund
- a Department of Public Health and Clinical Medicine , Umeå University , Umeå , Sweden
| | - Katarina Lidén K
- a Department of Public Health and Clinical Medicine , Umeå University , Umeå , Sweden
| | - Torbjörn Lind
- b Department of Clinical Sciences, Pediatrics , Umeå University , Umeå , Sweden
| | - Torbjörn Sundström
- c Department of Radiation Sciences, Diagnostic Radiology , Umeå University , Umeå , Sweden
| | - Pontus Karling
- a Department of Public Health and Clinical Medicine , Umeå University , Umeå , Sweden
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Yi DY, Chang EJ, Kim JY, Lee EH, Yang HR. Age, Predisposing Diseases, and Ultrasonographic Findings in Determining Clinical Outcome of Acute Acalculous Inflammatory Gallbladder Diseases in Children. J Korean Med Sci 2016; 31:1617-23. [PMID: 27550491 PMCID: PMC4999405 DOI: 10.3346/jkms.2016.31.10.1617] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 06/24/2016] [Indexed: 12/23/2022] Open
Abstract
We evaluated clinical factors such as age, gender, predisposing diseases and ultrasonographic findings that determine clinical outcome of acute acalculous inflammatory gallbladder diseases in children. The patients were divided into the four age groups. From March 2004 through February 2014, clinical data from 131 children diagnosed as acute acalculous inflammatory gallbladder disease by ultrasonography were retrospectively reviewed. Systemic infectious diseases were the most common etiology of acute inflammatory gallbladder disease in children and were identified in 50 patients (38.2%). Kawasaki disease was the most common predisposing disease (28 patients, 21.4%). The incidence was highest in infancy and lowest in adolescence. The age groups were associated with different predisposing diseases; noninfectious systemic disease was the most common etiology in infancy and early childhood, whereas systemic infectious disease was the most common in middle childhood and adolescence (P = 0.001). Gallbladder wall thickening was more commonly found in malignancy (100%) and systemic infection (94.0%) (P = 0.002), whereas gallbladder distension was more frequent in noninfectious systemic diseases (60%) (P = 0.000). Ascites seen on ultrasonography was associated with a worse clinical course compared with no ascites (77.9% vs. 37.7%, P = 0.030), and the duration of hospitalization was longer in patients with ascites (11.6 ± 10.7 vs. 8.0 ± 6.6 days, P = 0.020). In conclusion, consideration of age and predisposing disease in addition to ultrasonographic gallbladder findings in children suspected of acute acalculous inflammatory gallbladder disease might result in better outcomes.
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Affiliation(s)
- Dae Yong Yi
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Pediatrics, Chung-Ang University Hospital, Seoul, Korea
| | - Eun Jae Chang
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ji Young Kim
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Eun Hye Lee
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye Ran Yang
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea.
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Zakeri N, Pollok RCG. Diagnostic imaging and radiation exposure in inflammatory bowel disease. World J Gastroenterol 2016; 22:2165-2178. [PMID: 26900282 PMCID: PMC4734994 DOI: 10.3748/wjg.v22.i7.2165] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/02/2015] [Accepted: 12/14/2015] [Indexed: 02/06/2023] Open
Abstract
Diagnostic imaging plays a key role in the diagnosis and management of inflammatory bowel disease (IBD). However due to the relapsing nature of IBD, there is growing concern that IBD patients may be exposed to potentially harmful cumulative levels of ionising radiation in their lifetime, increasing malignant potential in a population already at risk. In this review we explore the proportion of IBD patients exposed to high cumulative radiation doses, the risk factors associated with higher radiation exposures, and we compare conventional diagnostic imaging with newer radiation-free imaging techniques used in the evaluation of patients with IBD. While computed tomography (CT) performs well as an imaging modality for IBD, the effective radiation dose is considerably higher than other abdominal imaging modalities. It is increasingly recognised that CT imaging remains responsible for the majority of diagnostic medical radiation to which IBD patients are exposed. Magnetic resonance imaging (MRI) and small intestine contrast enhanced ultrasonography (SICUS) have now emerged as suitable radiation-free alternatives to CT imaging, with comparable diagnostic accuracy. The routine use of MRI and SICUS for the clinical evaluation of patients with known or suspected small bowel Crohn’s disease is to be encouraged wherever possible. More provision is needed for out-of-hours radiation-free imaging modalities to reduce the need for CT.
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Overuse of the Emergency Department and CT Scans in Pediatric IBD: Time for Hot Spotting? J Pediatr Gastroenterol Nutr 2015; 61:267-8. [PMID: 25988564 DOI: 10.1097/mpg.0000000000000866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Civitelli F, Casciani E, Maccioni F, Oliva S, Al Ansari N, Bonocore V, Cucchiara S. Use of Imaging Techniques in Inflammatory Bowel Diseases That Minimize Radiation Exposure. Curr Gastroenterol Rep 2015; 17:28. [PMID: 26122246 DOI: 10.1007/s11894-015-0448-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The use of imaging in the management of inflammatory bowel disease (IBD) has grown exponentially in the last few years. This has raised concerns about the risk of high cumulative level of radiation exposure from medical imaging in IBD patients during their lifetime, especially when the disease begins in pediatric age. Physicians caring for IBD children should be aware of the malignant potential of ionizing radiation and of the availability of alternative radiation-free techniques such as magnetic resonance imaging (MRI) and ultrasonography (US), in order to use them whenever possible. This review will focus on the value of US and MRI in pediatric IBD.
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Affiliation(s)
- Fortunata Civitelli
- Department of Pediatrics, Pediatric Gastroenterology & Liver Unit, Sapienza University of Rome, Viale Regina Elena, 324-00161, Rome, Italy,
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15
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Predicting the Need for Imaging in IBD: Radiating Only Badness? Dig Dis Sci 2015; 60:813-5. [PMID: 25875756 DOI: 10.1007/s10620-015-3573-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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16
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MR enterography in Crohn’s disease: current consensus on optimal imaging technique and future advances from the SAR Crohn’s disease-focused panel. ACTA ACUST UNITED AC 2015; 40:953-64. [DOI: 10.1007/s00261-015-0361-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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17
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Imaging in the evaluation of the young patient with inflammatory bowel disease: what the gastroenterologist needs to know. J Pediatr Gastroenterol Nutr 2014; 59:429-39. [PMID: 24979661 DOI: 10.1097/mpg.0000000000000475] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Imaging plays a pivotal role in the diagnosis and management of children and young adults with inflammatory bowel disease. The clinician is presented with numerous imaging options, and it can be challenging to decide which test is the best option. In this article we review the present imaging techniques available in the evaluation of inflammatory bowel disease, with emphasis on the advantages, disadvantages, and radiation burden of each test. Finally, we highlight a few common clinical scenarios and propose an imaging algorithm to approach these diagnostic challenges.
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Rooke G, Phillips FTS. Does early radiography alter remanipulation rates in paediatric forearm fractures? ANZ J Surg 2014; 85:38-43. [DOI: 10.1111/ans.12755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Gareth Rooke
- Department of Orthopaedic Surgery; Christchurch Public Hospital; Christchurch New Zealand
| | - Fred T. S. Phillips
- Department of Orthopaedic Surgery; Wellington Regional Hospital; Wellington New Zealand
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Beath S, Lanchbury E, Alton H, Mahandru R, Toy M, van Mouirk I, McKiernan P, Hartley J, Kelly D, Sharif K, Gupte G. Selenium Homocholic Acid Taurocholate Scanning, Selenium-75-Labeled Bile Acid, a Novel Method for Testing the Function of the Terminal Ileum in Small Bowel Transplant Recipients: A Pilot Study. Transplant Proc 2014; 46:2119-21. [DOI: 10.1016/j.transproceed.2014.06.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tompane T, Leong CW, Bush R, Chuang NA, Dansky T, Huang JS. Appropriateness of radiology procedures performed in children with gastrointestinal symptoms and conditions. Clin Gastroenterol Hepatol 2014; 12:970-7. [PMID: 24035771 DOI: 10.1016/j.cgh.2013.08.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/23/2013] [Accepted: 08/28/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Exposure to ionizing radiation from diagnostic imaging procedures (DIPs) has been associated with an increased risk of cancer in children. In particular, gastrointestinal imaging has been identified as a significant factor that contributes to exposure of children to radiation during diagnostic procedures. We performed a longitudinal assessment of gastrointestinal-associated DIPs to identify practices that might be targeted to reduce exposure of pediatric patients to radiation. METHODS DIP insurance claims from 2001 through 2009 were obtained from an Independent Physicians Association in a large US metropolitan area. We retrieved and analyzed Current Procedural Terminology codes, associated International Classification of Diseases, 9th Revision, codes specific for gastrointestinal symptoms and conditions, and patient demographics associated with DIPs from insurance claims data. RESULTS Overall, 11,473 DIPs were performed on 6550 children with gastrointestinal symptoms; 1 in 30 patients received a DIP for a gastrointestinal complaint. Over the study period, the proportion of higher-radiation DIPs (computed tomography, fluoroscopy, and angiography) increased. Higher-radiation DIPs for gastrointestinal symptoms were performed more frequently in older children and in boys in the emergency department and in inpatient settings for diagnoses of abdominal pain, appendicitis, and noninfectious gastroenteritis. CONCLUSIONS Higher-radiation diagnostic imaging accounts for an increasing proportion of imaging procedures among children with gastrointestinal symptoms, even though these often are not recommended for evaluation of gastrointestinal disorders. Clinicians should be aware of these findings when ordering DIPs for gastrointestinal complaints, and clinical practice guidelines should be created to reduce diagnostic imaging-related radiation exposure in children.
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Affiliation(s)
- Trevor Tompane
- Division of Pediatric Gastroenterology, Rady Children's Hospital, San Diego, California; Department of Pediatrics, University of California, San Diego, La Jolla, California
| | - Curtis W Leong
- Division of Pediatric Gastroenterology, Rady Children's Hospital, San Diego, California
| | - Ruth Bush
- Department of Pediatrics, Rady Children's Hospital, San Diego, California
| | | | - Tanya Dansky
- Childrens Physicians Medical Group, San Diego, California
| | - Jeannie S Huang
- Division of Pediatric Gastroenterology, Rady Children's Hospital, San Diego, California; Department of Pediatrics, University of California, San Diego, La Jolla, California; Department of Pediatrics, Rady Children's Hospital, San Diego, California.
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Brambilla M, De Mauri A, Lizio D, Leva L, Carriero A, Carpeggiani C, Picano E. Cumulative radiation dose estimates from medical imaging in paediatric patients with non-oncologic chronic illnesses. A systematic review. Phys Med 2014; 30:403-12. [DOI: 10.1016/j.ejmp.2013.12.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 12/23/2013] [Accepted: 12/27/2013] [Indexed: 10/25/2022] Open
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Kim A, Yang HR, Moon JS, Chang JY, Ko JS. Epstein-barr virus infection with acute acalculous cholecystitis. Pediatr Gastroenterol Hepatol Nutr 2014; 17:57-60. [PMID: 24749090 PMCID: PMC3990785 DOI: 10.5223/pghn.2014.17.1.57] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 12/22/2022] Open
Abstract
Acute acalculous cholecystitis (AAC) is an inflammation of the gallbladder in the absence of demonstrated stones. AAC is frequently associated with severe systemic inflammation. However, the exact etiology and pathogenesis of AAC still remain unclear. Acute infection with Epstein Barr virus (EBV) in childhood is usually aymptomatic, whereas it often presents as typical infectious mononucleosis symptoms such as fever, cervical lymphadenopathy, and hepatosplenomegaly. AAC may occur during the course of acute EBV infection, which is rarely encountered in the pediatric population. AAC complicating the course of a primary EBV infection is usually associated with a favorable outcome. Most of the patients recover without any surgical treatment. Therefore, the detection of EBV in AAC would be important for prediction of better prognosis. We describe the case of a 10-year-old child who presented with AAC during the course of primary EBV infection, the first in Korea, and review the relevant literature.
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Affiliation(s)
- Ahlee Kim
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye Ran Yang
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea. ; Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Soo Moon
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Ju Young Chang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea. ; Department of Pediatrics, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Jae Sung Ko
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
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Yi DY, Kim JY, Choi EY, Choi JY, Yang HR. Hepatobiliary risk factors for clinical outcome of Kawasaki disease in children. BMC Pediatr 2014; 14:51. [PMID: 24548331 PMCID: PMC3938642 DOI: 10.1186/1471-2431-14-51] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 02/13/2014] [Indexed: 12/20/2022] Open
Abstract
Background Kawasaki disease (KD) is an acute febrile vasculitis that causes coronary artery abnormality (CAA) as a complication. In some patients, an association has been noted between elevated liver enzymes or an abnormal gallbladder (GB) and hepatobiliary involvement in KD. In this study, we aimed to evaluate clinical, laboratory, and ultrasonographic (USG) risk factors of hepatobiliary involvement for the intravenous immunoglobulin (IVIG) resistance and the development of CAA in children with KD. Methods From March 2004 through January 2013, clinical features, laboratory data, echocardiographic findings, and USG findings were retrospectively reviewed regarding the response to IVIG treatment and coronary artery complications in 67 children with KD. Acute acalculous cholecystitis (AAC) was diagnosed based on USG criteria. Results Among all factors, only the prothrombin time international normalized ratio was significantly different between the IVIG-response and IVIG-resistance groups (p = 0.024). CAA was statistically more frequent in the AAC group (n = 24) than in the non-AAC group (n = 43) (23.3% vs. 58.3%, p = 0.019). Among the laboratory factors, segmented neutrophil percentage, total bilirubin level, and C-reactive protein were significant in children with CAA (p = 0.014, p = 0.009, and p = 0.010). Abnormal GB findings on USG were significantly more frequent in children with CAA than in those without CAA (p = 0.007; OR = 4.620; 95% confidence interval [CI]: 1.574–13.558). GB distension on USG was the only significant risk factor for CAA (p = 0.001; OR = 7.288; 95% CI: 2.243–23.681) by using multiple logistic regression analysis. Conclusion For children in the acute phase of KD, USG findings of the GB, especially GB distension, may be an important risk factor for CAA as a complication.
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Affiliation(s)
| | | | | | | | - Hye Ran Yang
- Department of Pediatrics, Division of Pediatric Gastroenterology and Hepatology, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 463-707, Republic of Korea.
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Imaging Trends and Radiation Exposure in Pediatric Inflammatory Bowel Disease at an Academic Children's Hospital. AJR Am J Roentgenol 2013; 201:W133-40. [DOI: 10.2214/ajr.12.9277] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Giles E, Barclay AR, Chippington S, Wilson DC. Systematic review: MRI enterography for assessment of small bowel involvement in paediatric Crohn's disease. Aliment Pharmacol Ther 2013; 37:1121-31. [PMID: 23638954 DOI: 10.1111/apt.12323] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 12/31/2012] [Accepted: 04/07/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND Barium meal enteroclysis (BM) is the recommended imaging technique for small bowel inaccessible by ileo-colonoscopy when diagnosing paediatric-onset inflammatory bowel disease, but it has poor sensitivity and involves ionising radiation. MRI enterography (MRE) is an alternative methodology. AIMS To critically appraise the published evidence on MRE in the assessment of Paediatric inflammatory bowel disease by systematic review. METHODS Review of all English language data reporting MRE for the investigation of patients <18 years with known or suspected IBD. Primary searches of Medline (Jan 1950-April 2012), Cinahl (1966-April 2012) and Pubmed (Jan 1950-April 2012) were performed using keyword and MeSH terms; IBD; Magnetic resonance imaging; small bowel imaging; EMBASE was then searched. Two authors independently assessed the quality of studies using the quality assessment of diagnostic accuracy studies tool. RESULTS Searches yielded 930 035 hits, combination word searches limited to 1983 titles. Fifty-two studies were fully reviewed, 41 were excluded due to lack of paediatric data. Eleven studies of 496 children were included. All studies used endoscopy as the reference test. 10/496 patients required jejunal intubation for bowel preparation. Meta-analysis of six comparable studies gave a pooled sensitivity and specificity for MRE detection of active terminal ileal Crohn's disease of 84% and 97% respectively. Studies displayed heterogeneity in bowel preparation, scanning technique, reporting methodology and timing of ileo-colonoscopy in relation to MRE. In three studies comparing BM, MRE had greater sensitivity and specificity. CONCLUSIONS MRE is a sensitive and specific tool for diagnosis in paediatric inflammatory bowel disease. Technical considerations require refinement and standardisation; however, MRE has no radiation. Current data suggest that MRE should supersede BM as the SB imaging technique in centres with appropriate expertise.
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Affiliation(s)
- E Giles
- Paediatric Gastroenterology, Barts and the London School of Medicine and Dentistry, London, UK
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Tompane T, Bush R, Dansky T, Huang JS. Diagnostic imaging studies performed in children over a nine-year period. Pediatrics 2013; 131:e45-52. [PMID: 23209100 DOI: 10.1542/peds.2012-1228] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Diagnostic imaging procedures (DIPs) producing radiation exposure in children have been associated with increased cancer risk. To develop effective clinical practice interventions that reduce pediatric radiation exposure, a longitudinal assessment of DIP ordering practices in the current clinical climate was performed. Our objective was to determine the prevalence and characteristics of DIPs ordered by physicians in an independent physicians association treating a general pediatric population. METHODS DIP insurance claims from 2001 to 2009 were obtained from an independent physicians association in a large metropolitan area. Current Procedural Terminology codes, associated International Classification of Diseases, Ninth Revision codes, and patient demographics associated with DIPs were retrieved from insurance claim data and analyzed. RESULTS Overall, 214,538 DIPs were performed on 63,116 children from 2001 to 2009 at a rate of 1 DIP associated with ionizing radiation per 21 patient-months. Over the study period, performance of computed tomography, MRI, ultrasound, and radiography all significantly increased (P < .001 for all). Higher radiation DIPs were most frequently performed in the inpatient and emergency settings on older boy patients for gastrointestinal and congenital disorders. The 3 most common International Classification of Diseases, Ninth Revision codes associated with higher radiation DIPs were abdominal pain, headache, and head injury. CONCLUSIONS DIPs are frequently performed in children and higher radiation DIPs account for an increasing proportion of DIPs performed, especially among children evaluated in the inpatient and emergency department settings and those with gastrointestinal and neurologic symptoms, and congenital anomalies. Our findings may help guide development of clinical practice interventions to reduce DIP-related radiation exposure in youth.
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Affiliation(s)
- Trevor Tompane
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093-0984, USA
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Alvarez Beltran M, Barber Martinez de la Torre I, Segarra Cantón O, Redecillas Ferreiro S, Castellote Alonso A, Infante Pina D. [MRI enterography in the assessment of paediatric Crohn's disease]. An Pediatr (Barc) 2012; 78:314-20. [PMID: 23021590 DOI: 10.1016/j.anpedi.2012.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 06/07/2012] [Accepted: 06/11/2012] [Indexed: 10/27/2022] Open
Abstract
OBJECTIVE To determine the usefulness of MRI enterography for assessing the extension and activity of paediatric Crohn's disease. MRI findings were compared with clinical, biological, endoscopic and other imaging data. PATIENTS AND METHODS Studies of MRI enterography use in patients younger than 18 years of age were reviewed. Patients received 500-1000mL of polyethylene glycol one hour before examination (1.5-TMR). T2 HASTE sequences with or without fat saturation, T2 true-FISP, T1 with fat saturation, pre- and post gadolinium-enhanced VIBE sequences, and dynamic and diffusion HASTE were acquired. Thickening of the bowel wall, mucosal enhancement, and extra-luminal complications were evaluated. Five MRI patterns (normal, fibrosis, mild, moderate, and severe transmural activity) were defined. Findings were compared with PCDAI scores, inflammatory parameters, and endoscopic and histological results. RESULTS Twenty-two studies were reviewed. Optimal intestinal distension was present in 82% of the cases. Mild side effects were observed in 12% of patients. There was a significant relationship between MRI patterns and PCDAI scores (P=.002), sedimentation rate (P=.006) and serum PCR levels (P=.047) and a non-significant relationship with the histology (P=.571). MRI enterography correctly assessed the ileal (80%) and colonic (66%) extension. Extra-luminal complications unrelated to MRI classification (P=.274) were reported in 86.4% of studies. CONCLUSIONS There was a significant relationship between MRI patterns and PCR, sedimentation rate, and PCDAI scores. MRI enterography showed excellent agreement with ileoscopies, and allowed endoscopically non-accessible areas to be assessed, as well as the diagnosis of extra-luminal complications without irradiation.
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Affiliation(s)
- M Alvarez Beltran
- Unidad de Gastroenterología, Hepatología y Nutrición Pediátrica, Servicio de Pediatría, Hospital Universitari Vall d'Hebron, Barcelona, Spain. :
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Bibliography. Cardiovascular medicine (CM). Current world literature. Curr Opin Pediatr 2012; 24:656-60. [PMID: 22954957 DOI: 10.1097/mop.0b013e328358bc78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
PURPOSE OF REVIEW Radiation exposure due to medical imaging has grown exponentially over the past two decades and the awareness has increased in the last few years with a number of articles in scientific publications and lay press. Radiation increases the risk of cancer and is particularly a concern in children. Limiting radiation exposure is most important in children, who are more sensitive to radiation, and specifically in children with a chronic lifelong disease such as inflammatory bowel disease (IBD). RECENT FINDINGS Children with IBD and specifically Crohn's disease demonstrate high exposure to ionizing radiation due to medical imaging. The yearly rate of medical imaging radiation exposure may seem small at approximately 3-5 mSv/year, which is only slightly higher than typical background radiation (3 mSv/year). However, this extra yearly radiation exposure to children with a lifelong chronic disease may increase the risk of cancer. Additionally, recent literature suggests that some children with more severe disease are exposed to high radiation doses within the first few years of diagnosis. Imaging modalities that do not utilize radiation, such as MRI and ultrasonography, have demonstrated utility in diagnosing and managing IBD and are particularly important for children. SUMMARY Pediatricians caring for children with chronic diseases should consider radiation exposure and limit exposure when possible. Future quality outcome benchmarks should include limiting exposure to radiation in children with chronic diseases.
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