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 77
- Downloads 0
Development and validation of q-absorbance ratio method for simultaneous estimation of arterolane maleate and piperaquine phosphate in pharmaceutical dosage form
New Spectrophotometric Q-Absorbance Ratio method has been developed for the simultaneous estimation of Arterolane maleate and Piperaquine phosphate in tablet dosage form. UV spectrophotometric method, methanol was used a...
Hypertension induced posterior reversible encephalopathy syndrome in children: A report of two cases
Introduction Posterior reversible encephalopathy syndrome (PRES) is a reversible disorder with typical radiological findings. Majority of patients with PRES are in adults and rarely seen in children. Case presentation In...
Factors leading to failure of firstline anti retroviral therapy (ART); a retrospective study in indian teritiary care government settings
Background HIV is a lenti virus that causes HIV infection in humans in which progressive failure of immune system allows life threatening opportunistic infections and cancers to thrive. So it is important to study the fa...
Comparative study of anti bacterial activity of barks, leaves and flesh extracts of Moringa oleifera L
In the present study, comparative anti bacterial activity of barks, leaves and flesh extracts of Moringa oleifera L was evaluated with different pathogenic gram positive and gram negative microorganisms. Twelve extracts...
The use of rule-based web information systems to increase knowledge about anemia in pregnant women
Anemia in pregnant women does not have a bad impact, good for the health of the mother and baby. The level of knowledge of pregnant women about anemia will greatly affect the condition of the mother in maintaining self-h...