Imaging Protocol Assignment

Added on - Sep 2019

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The method and the methodologyMethod justification:The initial methodology of this study was a mixed method design for data collection.Mixed method is used to combine qualitative and quantitative data in order to maximisethe strengths of each, thus, helps to answer questions that are difficult to be answeredby one approach (Ozawa & Pongpirul, 2013). Mixed method design helps to view thetopic from multiple perspectives in order to develop a complete understanding, toreduce intrinsicbias which comes from single method and to triangulate findings. On theother hand, mixed method creates more data, which means more analyses, high costand more efforts (Johnson et al, 2007). The proposed qualitative data was a form ofinterview with the HODs of the participating departments (radiology, urology,emergency), whereas quantitative data is a numerical data of patients details whichneeded for the study as well as imaging procedures details. Faceto face interview wasproposed with the consultant urologist in order to obtain their opinions with regards tothe diagnosis and treatment pathway of acute renal colic patients.Unfortunately, the methodology has been changed from a mixed method to aretrospective quantitative study due to the short timeframe, this was due to the long timetaken in obtaining the ethical approval from my home country, which took more than twomonths and addition to some management issues in the radiology department to get thepermission letter in order to get access to the radiology information system.1
Ethical Consideration:Ethical approval was attained from the Research and Ethical Review & Approvecommittee- North Batinah Governorate (RERAC-NBG) and permission letter for RISaccess was obtained from the head of radiology department. Patient`s consent is notneeded in my trust for retrospective studies of cases series.Details of Sampling Method:This study design is a quantitative retrospective observational (non-experimental) crosssectional cohort study design. Quantitative research is one of the best designs to showthe degree of effectiveness of a diagnostic test in the health care. The data collection inqualitative study has some criteria such as: it is structured, standardized andpredetermined. Moreover, the sampling approaches is purposive targeting a particulargroup of people and in this study the purposive sample is CT KUB patients (Singh,2007). Furthermore, one of the best advantages of observational approaches is thatexamining the sample without any direct modification or control. In addition, there aremany other advantages of observational approaches for example: it can study naturalsituation, can be both respective and retrospective and it is relatively cheapapproaches. On the other hand, observational approaches have some disadvantageswhich include: external variables are difficult to be controlled, lack of standardization,hard to repeat or replicate and data can be more liable for bias. As this study is cohortdesign, so the sample size is expected to be large, because cohort study design isusually of a high sample size which is indirect advantage to minimize the bias which2
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