Optimization of mAs with iterative reconstruction (IR) on dose reduction and image information (phantom study on CT scan facial bone examination)
Journal Title: International Journal of Allied Medical Sciences and Clinical Research - Year 2018, Vol 6, Issue 3
Abstract
The effective dose of CT scan of the facial bone is about 20.2 mGy - 42.1 mGy, the radiation dose is influenced by kV, mAs and pitch which are directly proportional to the image quality. When the dose is lowered the noise will increase, so Iterative Reconstruction (IR) is used to reduce noise and radiation doses. There is a dose reduction in the use of mAs and differences in anatomical information with IR on CT Scan Facial Bone examination. This type of research is a quasi-experimental pretest-posttest design with control. The study sample consisted of 5 variations of mAs in the treatment group and 1 control group sample. Measurements were carried out by univariate tests for radiation doses, differences in anatomical image information on variations of mAs with friedman test, followed by post hoc tests. Assessment of anatomical information is done quantitatively by 2 radiologists. There was a decrease in radiation dose between control and treatment groups, a control group the resulting radiation dose mGy 53.66, the lowest dose treatment group 12.56 mGy at 37.5 mAs variations, differences in anatomy image information (p value <0.05 ) treatment and control groups There was a decrease in radiation dose of routine protocols, use of mAs 37.5 on CT Scan of Facial Bone with IR to produce the lowest dose and optimal anatomical information.
Authors and Affiliations
Widya Mufida
Keywords
Related Articles
- EP ID EP416856
- DOI -
- Views 73
- Downloads 0
Severity of cognitive function affection using mini mental scale examination in geriatric population
Background The world population has been experiencing significant ageing process that results in rising proportions of older persons in the total population since the mid-twentieth century. Cognitive function is unavoida...
Giving yellow pumpkin seeds (cucurbita pepo) against increased retinol levels in toddlers with stunting
Background Stunting is a health problem that affects one third of children in developing countries nearly 9 million children under five experience stunting. The lack of micronutrients is a direct cause that results in de...
Prevalence of foot drop in lumbar degenerative disease
The purpose of this study is to find out prevalence of foot drop in lumbar degenerative disease. 100 patients suffering from lumbar degenerative disease were included in the study between age group of 25-55 years from bo...
Ovarian Serous cystadenocarcinoma in a young woman: a rare occurrence
Serous cystadenocarcinoma (SC) is the most common ovarian carcinoma usually affecting elderly females. Exact incidence of SC in females younger than 25 years is not known due to rarity and little available literature. We...
Evaluation of Analgesic and Anti-Inflammatory activity of different fractions from Leucas Cephalotes
The present study was carried out to evaluate the analgesic and anti-inflammatory activity of various fractions of Toluene, Ethyl acetate, Butan-2-one and N-Butyl Alcohol of Leucas cephalotes. The fractions of the plant...