Exposure Index and Entrance Surface Dose of ANSI Chest Phantom with Computed Radiography
Journal Title: International Journal of Allied Medical Sciences and Clinical Research - Year 2018, Vol 5, Issue 4
Abstract
Background Radiographer shall ensure the radiation safety of the patient. Posteroanterior chest projection is a frequent examination in the radiology unit. Each radiographic projection must have a safe dose that justifies the dose reference level. One method for estimating the patient dose is using a patient equivalent phantom as an object of radiation exposure. The American National Standards Institute (ANSI) chest phantom was used to simulate chest radiographic examination. Computed Radiography is used for image receptor and provide the exposure index value. Objective The objective of this study is to describe the correlation between Exposure Index (EI) and Entrance Surface Dose (ESD) of ANSI chest phantom that mimicking the patient condition using Computed Radiography. Method Phantom was irradiated with an X-ray equipment using exposure factors for chest examinations. X-ray equipment, dosimeter, imaging plate and CR programs were well calibrated. EI on the Carestream CR system, as seen on the monitor. ESD measured with calculation method (indirect assessment of incident air kerma). The correlation between EI and ESD is obtained by statistical calculations. Result The result showed a positive, very strong and significant correlation between EI and ESD of ANSI chest phantom radiographic examination (r = 0.819 and p-value <0.01). Under the controlled conditions used in this study, the EI values were stable. Conclusions Entrance Surface Dose can be estimated through Exposure Index value in this Carestream CR. EI can be used as a dose control mechanism on exposure with the same radiation object.
Authors and Affiliations
Agung Nugroho Setiawan
Keywords
Related Articles
- EP ID EP419480
- DOI -
- Views 46
- Downloads 0
Silent but deadly: prevalence of breast problems among female students of secondary school, South Wollo, Ethiopia
Background The growing population in Ethiopia coupled with lifestyle changes will mean an increasing burden of breast problems which are warning signs of cancer. However, oncology services are wholly inadequate-no cancer...
Effect of two weeks training of Suryanamaskar on flexibility in college female students
Yoga is a form of mind-body fitness that involves a combination of muscular activity and an internally directed focus on awareness of the self, the breath, and energy. Suryanamaskar (SN) is a part of yoga. Since time is...
Antibacterial activity of Andrographis Paniculata L.
Objectives Ethanolic extract and chloroformic extracts of Andrographis Paniculata leaves was investigated for antibacterial activities. Methods The well diffusion method was followed for antibacterial assay.Antibacterial...
Correlation between ear length and width with height of individual – Research study
Anthropometry refers to the study of measurement of human individual. It’s an ancient tool which has been used for identification, for the purposes of understanding human physical variation. Human population shows variat...
A study to assess the postoperative nursing care in Orotta Medical Surgical National Referral Hospital from March - June 2013 Asmara, Eritrea
In the postoperative period, considerable effort is directed toward anticipation and prevention of problems. Patients undergoing surgery expected to have high quality of health care, and nurses play a significant role in...