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Kisembo HN, Malumba R, Sematimba H, Ankunda R, Nalweyiso ID, Malwadde EK, Rutebemberwa E, Kasasa S, Salama DH, Kawooya MG. Understanding the factors that influence CT utilization for mild traumatic brain injury in a low resource setting - a qualitative study using the Theoretical Domains Framework. Afr J Emerg Med 2024; 14:103-108. [PMID: 38756826 PMCID: PMC11096711 DOI: 10.1016/j.afjem.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction In low resource settings (LRS), utilization of Computed Tomography scan (CTS) for mild traumatic brain injuries (mTBIs) presents unique challenges and considerations given the limited infrastructure, financial resources, and trained personnel. The Theoretical Domains Framework (TDF) offers a comprehensive theoretical lens to explore factors influencing the decision-making to order CTS for mTBI by imaging referrers (IRs). Objectives The primary objective was to explore IRs' beliefs about factors influencing CT utilization in mTBIs using TDF in Uganda.Differences in the factors influencing CTS ordering behavior across specialties, levels of experience, and hospital category were also explored. Materials and Methods In-depth semi-structured interviews guided by TDF were conducted among purposively selected IRs from 6 tertiary public and private hospitals with functional CTS services. A thematic analysis was performed with codes and emerging themes developed based on the TDF. Results Eleven IRs including medical officers, non-neurosurgeon specialists and neurosurgeons aged on average 42 years (SD+/-12.3 years) participated.Identified factors within skills domain involved IRs' clinical assessment and decision-making abilities, while beliefs about capabilities and consequences encompassed their confidence in diagnostic abilities and perceptions of CTS risks and benefits. The environmental context and resources domain addressed the availability of CT scanners and financial constraints. The knowledge domain elicited IRs' understanding of clinical guidelines and evidence-based practices while social influences considered peer influence and institutional culture. For memory, attention & decision processes domain, IRs adherence to guidelines and intentions to order CT scans were cited. Conclusion Using TDF, IRs identified several factors believed to influence decision making to order CTS in mTBI in a LRS. The findings can inform stakeholders to develop targeted strategies and evidence-based interventions to optimize CT utilization in mTBI such as; educational programs, workflow modifications, decision support tools, and infrastructure improvements, among others.
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Affiliation(s)
- Harriet Nalubega Kisembo
- Makerere University, College of Health Sciences, School of Medicine
- Department of Radiology, Mulago National Referral and Teaching Hospital, Kampala, Uganda
| | - Richard Malumba
- Ernest cook Ultrasound Research and Education Institute, Mengo Hospital, Kampala, Uganda
| | - Henry Sematimba
- Ernest cook Ultrasound Research and Education Institute, Mengo Hospital, Kampala, Uganda
| | - Racheal Ankunda
- Ernest cook Ultrasound Research and Education Institute, Mengo Hospital, Kampala, Uganda
| | | | - Elsie-Kiguli Malwadde
- African Centre for Global Health and Social Transformation (ACHEST), Kampala, Uganda
| | - Elizeus Rutebemberwa
- School of Public Health, Department of Health Policy & Management, Makerere University, Kampala, Uganda
| | - Simon Kasasa
- Department of Epidemiology & Biostatistics, School of Public Health, Makerere University, Kampala, Uganda
| | | | - Michael Grace Kawooya
- Ernest cook Ultrasound Research and Education Institute, Mengo Hospital, Kampala, Uganda
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Tavender E, Eapen N, Wang J, Rausa VC, Babl FE, Phillips N. Triage tools for detecting cervical spine injury in paediatric trauma patients. Cochrane Database Syst Rev 2024; 3:CD011686. [PMID: 38517085 PMCID: PMC10958760 DOI: 10.1002/14651858.cd011686.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
BACKGROUND Paediatric cervical spine injury (CSI) after blunt trauma is rare but can have severe consequences. Clinical decision rules (CDRs) have been developed to guide clinical decision-making, minimise unnecessary tests and associated risks, whilst detecting all significant CSIs. Several validated CDRs are used to guide imaging decision-making in adults following blunt trauma and clinical criteria have been proposed as possible paediatric-specific CDRs. Little information is known about their accuracy. OBJECTIVES To assess and compare the diagnostic accuracy of CDRs or sets of clinical criteria, alone or in comparison with each other, for the evaluation of CSI following blunt trauma in children. SEARCH METHODS For this update, we searched CENTRAL, MEDLINE, Embase, and six other databases from 1 January 2015 to 13 December 2022. As we expanded the index test eligibility for this review update, we searched the excluded studies from the previous version of the review for eligibility. We contacted field experts to identify ongoing studies and studies potentially missed by the search. There were no language restrictions. SELECTION CRITERIA We included cross-sectional or cohort designs (retrospective and prospective) and randomised controlled trials that compared the diagnostic accuracy of any CDR or clinical criteria compared with a reference standard for the evaluation of paediatric CSI following blunt trauma. We included studies evaluating one CDR or comparing two or more CDRs (directly and indirectly). We considered X-ray, computed tomography (CT) or magnetic resonance imaging (MRI) of the cervical spine, and clinical clearance/follow-up as adequate reference standards. DATA COLLECTION AND ANALYSIS Two review authors independently screened titles and abstracts for relevance, and carried out eligibility, data extraction and quality assessment. A third review author arbitrated. We extracted data on study design, participant characteristics, inclusion/exclusion criteria, index test, target condition, reference standard and data (diagnostic two-by-two tables) and calculated and plotted sensitivity and specificity on forest plots for visual examination of variation in test accuracy. We assessed methodological quality using the Quality Assessment of Diagnostic Accuracy Studies Version 2 tool. We graded the certainty of the evidence using the GRADE approach. MAIN RESULTS We included five studies with 21,379 enrolled participants, published between 2001 and 2021. Prevalence of CSI ranged from 0.5% to 1.85%. Seven CDRs were evaluated. Three studies reported on direct comparisons of CDRs. One study (973 participants) directly compared the accuracy of three index tests with the sensitivities of NEXUS, Canadian C-Spine Rule and the PECARN retrospective criteria being 1.00 (95% confidence interval (CI) 0.48 to 1.00), 1.00 (95% CI 0.48 to 1.00) and 1.00 (95% CI 0.48 to 1.00), respectively. The specificities were 0.56 (95% CI 0.53 to 0.59), 0.52 (95% CI 0.49 to 0.55) and 0.32 (95% CI 0.29 to 0.35), respectively (moderate-certainty evidence). One study (4091 participants) compared the accuracy of the PECARN retrospective criteria with the Leonard de novo model; the sensitivities were 0.91 (95% CI 0.81 to 0.96) and 0.92 (95% CI 0.83 to 0.97), respectively. The specificities were 0.46 (95% CI 0.44 to 0.47) and 0.50 (95% CI 0.49 to 0.52) (moderate- and low-certainty evidence, respectively). One study (270 participants) compared the accuracy of two NICE (National Institute for Health and Care Excellence) head injury guidelines; the sensitivity of the CG56 guideline was 1.00 (95% CI 0.48 to 1.00) compared to 1.00 (95% CI 0.48 to 1.00) with the CG176 guideline. The specificities were 0.46 (95% CI 0.40 to 0.52) and 0.07 (95% CI 0.04 to 0.11), respectively (very low-certainty evidence). Two additional studies were indirect comparison studies. One study (3065 participants) tested the accuracy of the NEXUS criteria; the sensitivity was 1.00 (95% CI 0.88 to 1.00) and specificity was 0.20 (95% CI 0.18 to 0.21) (low-certainty evidence). One retrospective study (12,537 participants) evaluated the PEDSPINE criteria and found a sensitivity of 0.93 (95% CI 0.78 to 0.99) and specificity of 0.70 (95% CI 0.69 to 0.72) (very low-certainty evidence). We did not pool data within the broader CDR categories or investigate heterogeneity due to the small quantity of data and the clinical heterogeneity of studies. Two studies were at high risk of bias. We identified two studies that are awaiting classification pending further information and two ongoing studies. AUTHORS' CONCLUSIONS There is insufficient evidence to determine the diagnostic test accuracy of CDRs to detect CSIs in children following blunt trauma, particularly for children under eight years of age. Although most studies had a high sensitivity, this was often achieved at the expense of low specificity and should be interpreted with caution due to a small number of CSIs and wide CIs. Well-designed, large studies are required to evaluate the accuracy of CDRs for the cervical spine clearance in children following blunt trauma, ideally in direct comparison with each other.
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Affiliation(s)
- Emma Tavender
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
- Departments of Paediatrics and Critical Care, University of Melbourne, Melbourne, Australia
| | - Nitaa Eapen
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
| | - Junfeng Wang
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands
| | - Vanessa C Rausa
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
| | - Franz E Babl
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
- Departments of Paediatrics and Critical Care, University of Melbourne, Melbourne, Australia
- Emergency Department, The Royal Children's Hospital, Melbourne, Australia
| | - Natalie Phillips
- Emergency Department, Queensland Children's Hospital, Children's Health Queensland, Brisbane, Australia
- Child Health Research Centre, University of Queensland, Brisbane, Australia
- Biomechanics and Spine Research Group, Centre for Children's Health Research, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia
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Ruiz Santiago F, Láinez Ramos-Bossini AJ, Wáng YXJ, Martínez Barbero JP, García Espinosa J, Martínez Martínez A. The value of magnetic resonance imaging and computed tomography in the study of spinal disorders. Quant Imaging Med Surg 2022; 12:3947-3986. [PMID: 35782254 PMCID: PMC9246762 DOI: 10.21037/qims-2022-04] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/13/2022] [Indexed: 08/15/2023]
Abstract
Computed tomography (CT) and magnetic resonance imaging (MRI) have replaced conventional radiography in the study of many spinal conditions, it is essential to know when these techniques are indicated instead of or as complementary tests to radiography, which findings can be expected in different clinical settings, and their significance in the diagnosis of different spinal conditions. Proper use of CT and MRI in spinal disorders may facilitate diagnosis and management of spinal conditions. An adequate clinical approach, a good understanding of the pathological manifestations demonstrated by these imaging techniques and a comprehensive report based on a universally accepted nomenclature represent the indispensable tools to improve the diagnostic approach and the decision-making process in patients with spinal pain. Several guidelines are available to assist clinicians in ordering appropriate imaging techniques to achieve an accurate diagnosis and to ensure appropriate medical care that meets the efficacy and safety needs of patients. This article reviews the clinical indications of CT and MRI in different pathologic conditions affecting the spine, including congenital, traumatic, degenerative, inflammatory, infectious and tumor disorders, as well as their main imaging features. It is intended to be a pictorial guide to clinicians involved in the diagnosis and treatment of spinal disorders.
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Affiliation(s)
| | | | - Yì Xiáng J. Wáng
- Department of Imaging and Interventional Radiology, the Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - José Pablo Martínez Barbero
- Department of Radiology and Physical Medicine, Hospital Virgen de las Nieves, University of Granada, Granada, Spain
| | - Jade García Espinosa
- Department of Radiology and Physical Medicine, Hospital Virgen de las Nieves, University of Granada, Granada, Spain
| | - Alberto Martínez Martínez
- Department of Radiology and Physical Medicine, Hospital Virgen de las Nieves, University of Granada, Granada, Spain
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Meidani Z, Atoof F, Mobarak Z, Nabovati E, Daneshvar Kakhki R, Kouchaki E, Fakharian E, Nickfarjam AM, Holl F. Development of clinical-guideline-based mobile application and its effect on head CT scan utilization in neurology and neurosurgery departments. BMC Med Inform Decis Mak 2022; 22:106. [PMID: 35443649 PMCID: PMC9020029 DOI: 10.1186/s12911-022-01844-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/08/2022] [Indexed: 11/10/2022] Open
Abstract
Background There is little evidence regarding the adoption and intention of using mobile apps by health care professionals (HCP) and the effectiveness of using mobile apps among physicians is still unclear. To address this challenge, the current study seeks two objectives: developing and implementing a head CT scan appropriateness criteria mobile app (HAC app), and investigating the effect of HAC app on CT scan order.
Methods A one arm intervention quasi experimental study with before/after analysis was conducted in neurology & neurosurgery (N&N) departments at the academic hospital. We recruited all residents' encounters to N&N departments with head CT scan to examine the effect of HAC app on residents' CT scan utilization. The main outcome measure was CT scan order per patient for seven months at three points, before the intervention, during the intervention, after cessation of the intervention -post-intervention follow-up. Data for CT scan utilization were collected by reviewing medical records and then analyzed using descriptive statistics, Kruskal-Wallis, and Mann-Whitney tests. A focus group discussion with residents was performed to review and digest residents' experiences during interaction with the HAC app. Results Sixteen residents participated in this study; a total of 415 N&N encounters with CT scan order, pre-intervention 127 (30.6%), intervention phase 187 (45.1%), and 101 (24.3%) in the post-intervention follow-up phase were included in this study. Although total CT scan utilization was statistically significant during three-time points of the study (P = 0.027), no significant differences were found for CT utilization after cessation of the intervention (P = 1). Conclusion The effect of mobile devices on residents' CT scan ordering behavior remains open to debate since the changes were not long-lasting. Further studies based on real interactive experiences with mobile devices is advisable before it can be recommended for widespread use by HCP.
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Affiliation(s)
- Zahra Meidani
- Health Information Management Research Center, Kashan University of Medical Sciences, Kashan, Iran. .,Department of Health Information Management and Technology, Faculty of Allied Medical Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Fatemeh Atoof
- Department of Biostatistics & Epidemiology, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Zohre Mobarak
- Department of Health Information Management and Technology, Faculty of Allied Medical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Ehsan Nabovati
- Health Information Management Research Center, Kashan University of Medical Sciences, Kashan, Iran.,Department of Health Information Management and Technology, Faculty of Allied Medical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Reza Daneshvar Kakhki
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Ebrahim Kouchaki
- Department of Neurology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Esmaeil Fakharian
- Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Ali Mohammad Nickfarjam
- Health Information Management Research Center, Kashan University of Medical Sciences, Kashan, Iran.,Department of Health Information Management and Technology, Faculty of Allied Medical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Felix Holl
- DigiHealth Institute, Neu-Ulm University of Applied Sciences, Neu-Ulm, Germany.,Institute for Medical Information Processing, Biometry, and Epidemiology, University of Munich, Munich, Germany
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Howard A, West RM, Iball G, Panteli M, Baskshi MS, Pandit H, Giannoudis PV. Should Radiation Exposure be an Issue of Concern in Children With Multiple Trauma? Ann Surg 2022; 275:596-601. [PMID: 32740254 DOI: 10.1097/sla.0000000000004204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aims of this study were 3-fold: first, establish the level of radiation exposure experienced by the pediatric trauma patients; second, model the level of risk of developing fatal carcinogenesis; and third, test whether pattern of injury was predictive of the level of exposure. SUMMARY BACKGROUND DATA There are certain conditions that cause children to be exposed to increased radiation, that is, scoliosis, where level of radiation exposure is known. The extent that children are exposed to radiation in the context of multiple traumas remains unclear. METHODS Patients below the age of 16 years and with an Injury Severity Score (ISS) ≥10, treated by a Major Trauma Center for the period January 2008 to December 2018 were identified. The following data were extracted for the year following the patient's injury: number, doses, and type of radiological examination.The sex and age of the patient was taken into account in the calculation of the risk of developing a carcinogenesis. RESULTS The median radiation dose of the 425 patients identified in the 12 months following injury, through both CT and radiographs, was 24.3 mSv. Modeling the predictive value of pattern of injury and other relevant clinical values, ISS was proportionately predictive of cumulative dose received. CONCLUSION A proportion of younger polytrauma patients were exposed to high levels of radiation that in turn mean an increased risk of carcinogenesis. However, the ISS, age, injury pattern, and length of hospital stay are predictive of both risks, enabling monitoring and patient advisement of the risks.
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Affiliation(s)
- Anthony Howard
- Leeds Orthopaedic Trauma Sciences, LIRMM, Leeds University, Leeds, UK
| | - Robert M West
- Leeds Institute for Health Sciences, University of Leeds, Leeds, UK
| | - Gareth Iball
- Clinical Scientist, Leeds Teaching Hospital, Leeds, Leeds, UK
| | - Michalis Panteli
- Leeds Orthopaedic Trauma Sciences, LIRMM, Leeds University, Leeds, UK
- NIHR Clinical Lecturer, Leeds University, Leeds, UK
| | | | - Hemant Pandit
- Leeds Orthopaedic Trauma Sciences, LIRMM, Leeds University, Leeds, UK
- Leeds University, Leeds, UK
| | - Peter V Giannoudis
- Leeds Orthopaedic Trauma Sciences, LIRMM, Leeds University, Leeds, UK
- Leeds University, Leeds, UK
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Mork-Knudsen H, Lysdahl KB, Chilanga CC. Workplace factors facilitating the radiographers' assessment of referrals for diagnostic imaging - A qualitative study. Radiography (Lond) 2021; 28:24-30. [PMID: 34364785 DOI: 10.1016/j.radi.2021.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Radiology referrals are assessed for appropriate imaging based on the available clinical information. The task is legally the responsibility of the radiologists but could be delegated to radiographers under guidance. Knowledge of how this task is organised in radiology departments is limited. The study aim was to identify workplace factors facilitating the radiographers' assessment of referrals for medical imaging. METHODS Five radiographers were recruited by convenience- and snowball-sampling techniques through the online social media platform LinkedIn. The participants represented different private and public hospitals and had from three to above ten years of experience with assessment of referrals for plain and cross sectional imaging. Following a qualitative approach, 60-min in-depth semi-structured interviews were conducted through online video meetings. Interviews followed a topic guide with 15 questions and 20 keywords, previously tested through a pilot interview. Systematic text condensation was performed using NVivo 12, where central themes and underlying subthemes were developed. RESULTS Five central facilitating factors were identified, each with subthemes identified as: (1) Formal responsibilities; Documented delegation, Specific role description, (2) Training; Achieving skills, Maintaining skills, (3) Guidelines; Clinical indications, Priority, (4) Resource allocation; Time, Staff, (5) a Supporting environment; Teamwork, Mutual benefits, Feedback and knowledge sharing. CONCLUSION The study adds new and valuable insights into workplace factors facilitating the radiographers' delegated task of assessing referrals. Workflows adapting such factors benefit radiographers by increasing knowledge and professional development, while positively re-allocating radiologist resources. IMPLICATIONS FOR PRACTICE The study findings may support radiology workplaces in establishing or improving referral assessment by radiographers. Subsequently, improved quality of patient services may be achieved.
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Affiliation(s)
- H Mork-Knudsen
- The University of South-Eastern Norway (USN), Grønland 58, 3045 Drammen, Norway.
| | - K B Lysdahl
- The University of South-Eastern Norway (USN), Grønland 58, 3045 Drammen, Norway.
| | - C C Chilanga
- The University of South-Eastern Norway (USN), Grønland 58, 3045 Drammen, Norway.
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Moghadam N, Rehani MM, Nassiri MA. Assessment of patients' cumulative doses in one year and collective dose to population through CT examinations. Eur J Radiol 2021; 142:109871. [PMID: 34332245 DOI: 10.1016/j.ejrad.2021.109871] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/30/2021] [Accepted: 07/16/2021] [Indexed: 01/14/2023]
Abstract
PURPOSE To estimate percentage of patients undergoing multiple CT exams leading to cumulative effective dose (CED) of more than 25, 50, 75 and 100 mSv in one year and assess per capita and the collective effective dose. METHODS Data from a regional hospital network was collected retrospectively using radiation dose monitoring system at 6 facilities with 8 CT scanners. The data was analyzed to find number of patients in different dose groups, their age, gender, number of CT exams and exams needed to reach 100 mSv based on age groups. RESULTS In one year 43,010 patients underwent 75,252 CT examinations. The number of exams per 1000 population was 153. Further 27% of the patients were younger than 55- years and 15.9% of them were younger than 45-year-old. A total of 0.67% of patients received a CED > 100 mSv; 3.5% had CED > 50 mSv, 11.9% with CED > 25 mSv and the maximum CED was 529 mSv. The minimum time to reach 100 mSv was a single CT exam. Seven patients received > 100 mSv in a single CT exam. 0.36% of patients had 10 or more CT exams in one year and 3.8% had 5 or more CT exams. The mean CED was 12.3 mSv, the average individual effective dose was 1.1 mSv and the collective effective dose was 521.3 person-Sv. CONCLUSIONS The alarming high CED received by large number of patients and with high collective dose to population requires urgent actions by all stake holders in the best interest of patient radiation safety.
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Affiliation(s)
- Narjes Moghadam
- Centre de recherche du Centre hospitalier universitaire de Sherbrooke (CRCHUS), Sherbrooke, Québec, Canada; Centre intégré universitaire de santé et de services sociaux de l'Estrie - Centre hospitalier universitaire de Sherbrooke (CIUSSS de l'Estrie - CHUS), Sherbrooke, Québec, Canada.
| | - Madan M Rehani
- Radiology Department, Massachusetts General Hospital, Boston, MA, USA
| | - Moulay Ali Nassiri
- Centre de recherche du Centre hospitalier universitaire de Sherbrooke (CRCHUS), Sherbrooke, Québec, Canada; Centre intégré universitaire de santé et de services sociaux de l'Estrie - Centre hospitalier universitaire de Sherbrooke (CIUSSS de l'Estrie - CHUS), Sherbrooke, Québec, Canada; Department of Nuclear Medicine and Radiobiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Canada
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Trends of computed tomography use among children in Finland. Eur J Radiol Open 2020; 7:100290. [PMID: 33335951 PMCID: PMC7733003 DOI: 10.1016/j.ejro.2020.100290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 01/03/2023] Open
Abstract
Objectives CT is an essential diagnostic tool in health care. However, CT delivers relatively high levels of radiation which has been associated with an increased risk of childhood cancer. To address this, we evaluated patterns and time trends of CT use among children in Finland during the period in which changes in pediatric CT imaging practices were reported in several countries. Methods Data on CTs performed on children younger than 15 years were obtained from Finland’s largest eight hospitals. CT data included the period 1996–2010 with an estimated coverage of more than 80 % of pediatric CT imaging in Finland. Joinpoint regression was used for trends analysis. CT radiation doses were estimated based on a Finnish dosimetry survey. Results A total of 48,807 pediatric CTs were performed in 1996–2010. More boys (55.5 %) were scanned than girls (42.8 %). CT numbers increased up to 2002, then decreased significantly (-6.9 % per year, 95 % CI: -10.4 to -3.2) towards 2005 and to a lesser extent thereafter, particularly among younger children. All CT types decreased in recent years, except for chest, spine, and extremities. The frequency of head CTs related to the diagnoses of intracranial injury, migraine and headache decreased towards the end of the study period. The estimated annual average effective dose from the three most common CT examinations was 0.004 mSv per child in the population. Conclusions The frequency of pediatric CTs in Finland started to decrease after 2002. Apart from chest and orthopedic CTs, the utilization of pediatric CT imaging declined in recent years, most likely explained by improved awareness of medical radiation risks and reliance on alternative modalities such as MRI and ultrasound.
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Chilanga C, Lysdahl K, Olerud H, Toomey R, Cradock A, Rainford L. Radiographers' assessment of referrals for CT and MR imaging using a web-based data collection tool. Radiography (Lond) 2020; 26:e277-e283. [DOI: 10.1016/j.radi.2020.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 11/30/2022]
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De Roo B, Hoste P, Stichelbaut N, Annemans L, Bacher K, Verstraete K. Belgian multicentre study on lumbar spine imaging: Radiation dose and cost analysis; Evaluation of compliance with recommendations for efficient use of medical imaging. Eur J Radiol 2020; 125:108864. [DOI: 10.1016/j.ejrad.2020.108864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/28/2020] [Accepted: 01/31/2020] [Indexed: 10/25/2022]
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National audit on the appropriateness of CT and MRI examinations in Luxembourg. Insights Imaging 2019; 10:54. [PMID: 31111303 PMCID: PMC6527721 DOI: 10.1186/s13244-019-0731-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 03/13/2019] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVES In Luxembourg, the frequency of CT and MRI examinations per inhabitant is among the highest in Europe. A national audit was conducted to evaluate the appropriateness of CT and MRI examinations according to the national referral guidelines for medical imaging. METHODS Three hundred and eighty-eight CT and 330 MRI requests corresponding to already performed examinations were provided by all radiology departments in Luxembourg. Four external radiologists evaluated the clinical elements for justification present in each request. They consensually assessed the appropriateness of each requested examination with regard to the national referral guidelines and their clinical experience. RESULTS The appropriateness rate (AR) was higher for MRI requests than for CT requests (79% vs. 61%; p < 0.001). AR was higher for requests referred by medical specialists rather than by general practitioners, both for CT requests (70% vs. 37%; p < 0.001) and MRI requests (83% vs. 64%; p = 0.002). For CT, AR was higher when the requests concerned paediatric rather than adult patients (82% vs. 58%; p < 0.001), when the radiology departments were equipped with both CT and MRI units rather than with only CT units (65% vs. 47%, p = 0.004) and when the requests concerned head-neck (79%), chest (77%) and chest-abdominal-pelvic (81%) areas rather than spinal (28%), extremity (51%) and abdominal-pelvic (63%) areas (p < 0.001). CONCLUSIONS The appropriateness of CT and MRI in Luxembourg is not satisfactory and collective efforts to improve should be continued. The focus should be on general practitioners and on spinal CT examinations.
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Implementation of a CT scan practice guideline for pediatric trauma patients reduces unnecessary scans without impacting outcomes. J Trauma Acute Care Surg 2019; 85:451-458. [PMID: 29787555 DOI: 10.1097/ta.0000000000001974] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Computed tomography (CT) scans are useful in the evaluation of trauma patients, but are costly and pose risks from ionizing radiation in children. Recent literature has demonstrated the use of CT scan guidelines in the management of pediatric trauma. The study objective is to review our treatment of pediatric blunt trauma patients and evaluate CT use before and after CT-guideline implementation. METHODS Our Pediatric Level 2 Trauma Center (TC) implemented a CT scan practice guideline for pediatric trauma patients in March 2014. The guideline recommended for or against CT of the head and abdomen/pelvis using published criteria from the Pediatric Emergency Care and Research Network. There was no chest CT guideline. We reviewed all pediatric trauma patients for CT scans obtained during initial evaluation before and after guideline implementation, excluding inpatient scans. The Trauma Registry Database was queried to include all pediatric (age < 15) trauma patients seen in our TC from 2010 to 2016, excluding penetrating mechanism and deaths in the TC. Scans were considered positive if organ injury was detected. Primary outcome was the proportion of patients undergoing CT and percent positive CTs. Secondary outcomes were hospital length of stay, readmissions, and mortality. Categorical and continuous variables were analyzed with χ and Wilcoxon rank-sum tests, respectively. p < 0.05 was considered significant. RESULTS We identified 1,934 patients: 1,106 pre- and 828 post-guideline. Absolute reductions in head, chest, and abdomen/pelvis CT scans were 17.7%, 11.5%, and 18.8%, respectively (p < 0.001). Percent positive head CTs were equivalent, but percent positive chest and abdomen CT increased after implementation. Secondary outcomes were unchanged. CONCLUSIONS Implementation of a pediatric CT guideline significantly decreases CT use, reducing the radiation exposure without a difference in outcome. Trauma centers treating pediatric patients should adopt similar guidelines to decrease unnecessary CT scans in children. LEVEL OF EVIDENCE Therapeutic study, level IV.
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De Roo B, Stichelbaut N, Hoste P, Verstraete K, Bacher K. The effective and collective dose to patients undergoing abdominopelvic and trunk computed tomography examinations: A Belgian multicentre study. Eur J Radiol 2019; 111:81-87. [DOI: 10.1016/j.ejrad.2018.12.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 12/18/2018] [Accepted: 12/23/2018] [Indexed: 10/27/2022]
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Vilar-Palop J, Hernandez-Aguado I, Pastor-Valero M, Vilar J, González-Alvarez I, Lumbreras B. Appropriate use of medical imaging in two Spanish public hospitals: a cross-sectional analysis. BMJ Open 2018; 8:e019535. [PMID: 29549204 PMCID: PMC5857681 DOI: 10.1136/bmjopen-2017-019535] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To determine the appropriateness of medical imaging examinations involving radiation and to estimate the effective radiation dose and costs associated. DESIGN Cross-sectional retrospective study. SETTING Two Spanish public tertiary hospitals. PARTICIPANTS 2022 medical imaging tests were extracted from the radiology information system in February and March of 2014. MRI and ultrasound examinations were excluded. PRIMARY AND SECONDARY OUTCOME MEASURES Five outcomes were set independently by at least two researchers according to four guidelines: (1) appropriate; (2) inappropriate; (3) inappropriate due to repetition, if the timing to carry out next diagnostic tests was incorrect according to guidelines; (4) not adequately justified, if the referral form did not include enough clinical information to allow us to understand the patient's clinical condition; and (5) not included in the guidelines, if the referral could not be matched to a clinical scenario described in the guidelines. We estimated the prevalence of the five categories according to relevant clinical and sociodemographic variables and the effective radiation dose and costs for each category. RESULTS Approximately half of the imaging tests were deemed as appropriate (967, 47.8%) while one-third (634, 31.4%) were considered inappropriate. 19.6% of the effective dose and 25.2% of the cost were associated with inappropriate tests. Women were less likely than men to have an imaging test classified as appropriate (adjusted OR 0.70,95% CI 0.57 to 0.86). Imaging tests requested by general practitioners were less likely to be considered appropriate than those requested by central services (adjusted OR 0.60, 95% CI 0.38 to 0.93). Mammography and CT were more likely to be appropriate than conventional X-rays. CONCLUSION There was a significant frequency of inappropriateness, which resulted in a high percentage of associated effective radiation dose. Percentage of inappropriateness depends on sociodemographic and clinical characteristics such as sex, age, referral physician and medical imaging test.
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Affiliation(s)
| | - Ildefonso Hernandez-Aguado
- Centro de Investigacion Biomedica en Red de Epidemiologia y Salud Publica, Barcelona, Spain
- Department of Public Health, History of Science and Gynecology, Miguel Hernández University, Alicante, Spain
| | - María Pastor-Valero
- Centro de Investigacion Biomedica en Red de Epidemiologia y Salud Publica, Barcelona, Spain
- Department of Public Health, History of Science and Gynecology, Miguel Hernández University, Alicante, Spain
| | - José Vilar
- Radiology Department, Peset Hospital, Valencia, Spain
| | | | - Blanca Lumbreras
- Centro de Investigacion Biomedica en Red de Epidemiologia y Salud Publica, Barcelona, Spain
- Department of Public Health, History of Science and Gynecology, Miguel Hernández University, Alicante, Spain
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Slaar A, Fockens MM, Wang J, Maas M, Wilson DJ, Goslings JC, Schep NWL, van Rijn RR. Triage tools for detecting cervical spine injury in pediatric trauma patients. Cochrane Database Syst Rev 2017; 12:CD011686. [PMID: 29215711 PMCID: PMC6486014 DOI: 10.1002/14651858.cd011686.pub2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Pediatric cervical spine injury (CSI) after blunt trauma is rare. Nonetheless, missing these injuries can have severe consequences. To prevent the overuse of radiographic imaging, two clinical decision tools have been developed: The National Emergency X-Radiography Utilization Study (NEXUS) criteria and the Canadian C-spine Rule (CCR). Both tools are proven to be accurate in deciding whether or not diagnostic imaging is needed in adults presenting for blunt trauma screening at the emergency department. However, little information is known about the accuracy of these triage tools in a pediatric population. OBJECTIVES To determine the diagnostic accuracy of the NEXUS criteria and the Canadian C-spine Rule in a pediatric population evaluated for CSI following blunt trauma. SEARCH METHODS We searched the following databases to 24 February 2015: CENTRAL, MEDLINE, MEDLINE Non-Indexed and In-Process Citations, PubMed, Embase, Science Citation Index, ProQuest Dissertations & Theses Database, OpenGrey, ClinicalTrials.gov, World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP), Cochrane Database of Systematic Reviews, the Database of Abstracts of Reviews of Effects, the Health Technology Assessment, and the Aggressive Research Intelligence Facility. SELECTION CRITERIA We included all retrospective and prospective studies involving children following blunt trauma that evaluated the accuracy of the NEXUS criteria, the Canadian C-spine Rule, or both. Plain radiography, computed tomography (CT) or magnetic resonance imaging (MRI) of the cervical spine, and follow-up were considered as adequate reference standards. DATA COLLECTION AND ANALYSIS Two review authors independently assessed the quality of included studies using the QUADAS-2 checklists. They extracted data on study design, patient characteristics, inclusion and exclusion criteria, clinical parameters, target condition, reference standard, and the diagnostic two-by-two table. We calculated and plotted sensitivity, specificity and negative predictive value in ROC space, and constructed forest plots for visual examination of variation in test accuracy. MAIN RESULTS Three cohort studies were eligible for analysis, including 3380 patients ; 96 children were diagnosed with CSI. One study evaluated the accuracy of the Canadian C-spine Rule and the NEXUS criteria, and two studies evaluated the accuracy of the NEXUS criteria. The studies were of moderate quality. Due to the small number of included studies and the diverse outcomes of those studies, we could not describe a pooled estimate for the diagnostic test accuracy. The sensitivity of the NEXUS criteria of the individual studies was 0.57 (95% confidence interval (CI) 0.18 to 0.90), 0.98 (95% CI 0.91 to 1.00) and 1.00 (95% CI 0.88 to 1.00). The specificity of the NEXUS criteria was 0.35 (95% CI 0.25 to 0.45), 0.54 (95% CI 0.45 to 0.62) and 0.2 (95% CI 0.18 to 0.21). For the Canadian C-spine Rule the sensitivity was 0.86 (95% CI 0.42 to 1.00) and specificity was 0.15 (95% CI 0.08 to 0.23). Since the quantity of the data was small we were not able to investigate heterogeneity. AUTHORS' CONCLUSIONS There are currently few studies assessing the diagnostic test accuracy of the NEXUS criteria and CCR in children. At the moment, there is not enough evidence to determine the accuracy of the Canadian C-spine Rule to detect CSI in pediatric trauma patients following blunt trauma. The confidence interval of the sensitivity of the NEXUS criteria between the individual studies showed a wide range, with a lower limit varying from 0.18 to 0.91 with a total of four false negative test results, meaning that if physicians use the NEXUS criteria in children, there is a chance of missing CSI. Since missing CSI could have severe consequences with the risk of significant morbidity, we consider that the NEXUS criteria are at best a guide to clinical assessment, with current evidence not supporting strict or protocolized adoption of the tool into pediatric trauma care. Moreover, we have to keep in mind that the sensitivity differs among several studies, and individual confidence intervals of these studies show a wide range. Our main conclusion is therefore that additional well-designed studies with large sample sizes are required to better evaluate the accuracy of the NEXUS criteria or the Canadian C-spine Rule, or both, in order to determine whether they are appropriate triage tools for the clearance of the cervical spine in children following blunt trauma.
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Affiliation(s)
- Annelie Slaar
- WestfriesgasthuisDepartment of RadiologyMaelsonstraat 3HoornNoord HollandNetherlands1624 NP
| | - M M Fockens
- University of AmsterdamAcademic Medical CenterAmsterdamNetherlands
| | - Junfeng Wang
- Academic Medical CenterDepartment of Clinical Epidemiology, Biostatistics and BioinformaticsMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Mario Maas
- Academic Medical CenterDepartment of RadiologyUniversity of AmsterdamMeibergdreefAmsterdamNetherlands
| | - David J Wilson
- St Lukes HospitalDepartment of RadiologyLatimer RoadHeadingtonOxfordUKOX3 7PF
| | - J Carel Goslings
- Academic Medical CenterTrauma Unit, Department of SurgeryMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Niels WL Schep
- Academic Medical CenterDepartment of Surgery/Trauma UnitMeibergdreef 9AmsterdamNetherlands1105AZ
| | - Rick R van Rijn
- Academic Medical Center AmsterdamDepartment of RadiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
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Tahvonen P, Oikarinen H, Niinimäki J, Liukkonen E, Mattila S, Tervonen O. Justification and active guideline implementation for spine radiography referrals in primary care. Acta Radiol 2017; 58:586-592. [PMID: 27609905 DOI: 10.1177/0284185116661879] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Spinal disorders are a major public health problem. Appropriate diagnostic imaging is an essential part in the management of back complaints. Nevertheless, inappropriate imaging increases population collective dose and health costs without improving outcome. Purpose To determine the effects of active implementation of referral guidelines on the number and justification of spine radiography in primary care in one city. Material and Methods Specified guidelines for spine radiography were distributed to referring practitioners altogether three times during the study period. Educational lectures were provided before the guidelines were taken into use. The guidelines were also made available via the intranet. The number of spine radiography referrals during similar 6-month periods in the year preceding the interventions and the following 2 years was analyzed. Justification of 448 spine radiographs was assessed similarly. Results After interventions, the total number of spine radiography examinations decreased by 48% (P < 0.001) and that of cervical spine radiography by 46% ( P < 0.001), thoracic spine by 53% ( P < 0.001), and lumbar spine by 47% ( P < 0.001). The results persisted after 1-year follow-up. Before interventions, 24% of the cervical, 46% of the thoracic, and 32% of the lumbar spine radiography referrals were justified. After interventions, only justification of lumbar spine radiography improved significantly, 64% being justified ( P = 0.005). Conclusion Spine radiography in primary care can be reduced significantly by active referral guideline implementation. The proportion of inappropriate radiography was unexpectedly high. Thus, further education and studies concerning the appropriate use of spinal radiography seems to be needed.
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Affiliation(s)
- Pirita Tahvonen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Heljä Oikarinen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Jaakko Niinimäki
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Esa Liukkonen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Seija Mattila
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Osmo Tervonen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
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Newman S. Informing Patients About the Cancer Induction Risk of Undergoing Computed Tomography Imaging: The Radiographers' Perspective. J Med Imaging Radiat Sci 2016; 47:337-348. [DOI: 10.1016/j.jmir.2016.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/19/2016] [Accepted: 07/19/2016] [Indexed: 01/04/2023]
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Sodhi KS, Krishna S, Saxena AK, Sinha A, Khandelwal N, Lee EY. Clinical application of 'Justification' and 'Optimization' principle of ALARA in pediatric CT imaging: "How many children can be protected from unnecessary radiation?". Eur J Radiol 2015; 84:1752-7. [PMID: 26072096 DOI: 10.1016/j.ejrad.2015.05.030] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/22/2015] [Accepted: 05/26/2015] [Indexed: 10/23/2022]
Abstract
RATIONALE AND OBJECTIVES Practice of ALARA (as low as reasonably achievable) principle in the developed world is currently well established. However, there is striking lack of published data regarding such experience in the developing countries. Therefore, the goal of this study is to prospectively evaluate CT request forms to assess how many children could be protected from harmful radiation exposure if 'Justification' and 'Optimization' principles of ALARA are applied before obtaining CT imaging in a developing country. This can save children from potential radiation risks including development of brain cancer and leukemia. MATERIAL AND METHODS Consecutive CT request forms over a six month study period (May 16, 2013 to November 15, 2013) in a tertiary pediatric children's hospital in India were prospectively reviewed by two pediatric radiologists before obtaining CT imaging. First, 'Justification' of CT was evaluated and then 'Optimization' was applied for evaluation of appropriateness of the requested CT studies. The number (and percentage) of CT studies avoided by applying 'Justification' and 'Optimization' principle of ALARA were calculated. The difference in number of declined and optimized CT requests between CT requests from inpatient and outpatient departments was compared using Chi-Square test. RESULTS A total of 1302 consecutive CT request forms were received during the study period. Some of the request forms (n=86; 6.61%) had requests for more than one (multiple) anatomical regions, hence, a total of 1392 different anatomical CT requests were received. Based on evaluation of the CT request forms for 'Justification' and 'Optimization' principle of ALARA by pediatric radiology reviewers, 111 individual anatomic part CT requests from 105 pediatric patients were avoided. Therefore, 8.06% (105 out of 1302 pediatric patients) were protected from unnecessary or additional radiation exposure.The rates of declined or optimized CT requests from inpatient department was significantly higher than that from outpatient departments (p<0.05). CONCLUSIONS A substantial number of pediatric patients, particularly coming from outpatient departments, can be protected from unnecessary or additional radiation exposure from CT imaging when 'Justification' and 'Optimization' principle of ALARA are applied before obtaining CT imaging in a developing country.
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Affiliation(s)
- Kushaljit S Sodhi
- Departments of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
| | - Satheesh Krishna
- Departments of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Akshay K Saxena
- Departments of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Anindita Sinha
- Departments of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Niranjan Khandelwal
- Departments of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Edward Y Lee
- Departments of Radiology and Medicine, Pulmonary Division, Boston Children's Hospital and Harvard Medical School, 300 Longwood Ave. Boston, MA 02115, United States
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