Informatics Publishing Limited

Mi-Hwa Lee ¹, Hong-Ryang Jung ¹

Affiliations
1 Department of Health Care, Hanseo University, Seosan - 356706, South Chungcheong, KR

Abstract

In most of the Digital Radiology Equipment, they have the system to provide exposure information to the inspector, and call this Exposure Index. EI can be classified as ROI Based EI and Histogram EI. We tried to see the change of EI according to the place of foreign body and subject in the detector, having chest PA inspection condition as the center. The first experiment method is to see the change of EI according to the movement of subject. Second method is the comparison of EI according to the foreign body movement by the set-up of EI. The third method is to compare and evaluate EI by the set-up ways of EI and the movement of shielding material. By the result of movement of the subject, for ROI based EI left and right, for Histogram EI middle and down, and in left and right had the same EI. By the result of movement of foreign matter, in the other 4 sectors, there were no changes in ROI Based EI and Histogram EI, and it was same for the each sectors. By the result of movement of the shield, ROI based EI, when Pb Protector was in the place of 14~20cm, the EI was same as the standard. Histogram EI Pb Protector Place was in 2~20cm, EI was 500, which is the same with the standard. In the same condition, by the EI set up method, the patient position and foreign body changed the quality of image by the position, and this shows that ROI based EI has big influence in Subject and Foreign Body Detector by the place and size. However Histogram EI can provide steady image because it doesn't get influenced by such environment.

Keywords

EI, Exposure Index, Histogram, ROI.

Full Text

   

Ki-Jeong Kim ¹, Hong-Ryang Jung ², Cheong-Hwan Lim ¹, Woo-Taek Im ¹, Jae-Goo Shim ³, Mi-Hwa Lee ⁴

Affiliations
1 Department of Health Care, Hanseo University, ChungcheongNam-do, KR
2 Department of Radiology Science, Hanseo University, ChungcheongNam-do, KR
3 Department of Oncology, Samsung Medical Center, Seoul, KR
4 Department of Radiology, Gangdong Kyung-Hee University Hospital, Seoul, KR

Abstract

The study tried to comparatively analyze surgical findings based on the examination results of polysomnography and
video-fluoroscopy which are examinations useful in diagnosis of obstructive sleep apnea syndrome. The subjects
were patients over the age of 18 who were admitted for snoring, observed apnea, or sleepiness. Received under
polysomnography and video-fluoroscopy inspection of obstructive sleep apnea of doubt from March 2013 to February
2014, it was intended for patients who have undergone surgical treatment. In the analysis was obstructive sleep apnea
severity, there were difference in all clauses excluding age and height (P<0.05). Crosstab due to the presence or absence
of video-fluoroscopy and polysomnography and surgical treatment, there was a significant difference (p<0.05). There are
many examinations for diagnosing obstructive sleep apnea but as an essential examination there are polysomnography
and video-fluoroscopy examination that can observe the dynamic change of the obstruction which are clinically useful.

Keywords

Apnea-Hypopnea Index, Obstructive Sleep Apnea, Polysomnography, Video-Fluoroscopy

Full Text

   

Ki-Jeong Kim ¹, Hong-Ryang Jung ¹, Cheong-Hwan Lim ¹, Woo-Taek Lim ¹, Jeong-Hee Kim ¹, Mi-Hwa Lee ¹

Affiliations
1 Dept. Health Care, The Graduate School of Hanseo University, 46. Hanseo 1-ro, Haemi-Myun, Seosan-Si, Chungcheognam-do, Province, 31962, KP

Abstract

Background/Objectives: This study aimed at investigating the attitudes, knowledge and behaviors of radiological technologists on radiation, and how they are preparing plans to reduce unnecessary radiation doses on practitioners, patients and their caretakers. Methods/Statistical analysis: This study was conducted with 231 radiological technologists working in a CT examination room. For this, we contacted radiological technologists working at hospitals for at least 1 month from March to April of 2016. The following findings were obtained. Data collected through the survey was analyzed using SPSS ver. 23.0. Findings: Knowledge level of radiation safety management by general characteristics showed statistically significant differences according to clinical experience (p < 0.05), hospital size (p < 0.05), and educational level (p < 0.05). Attitude level of radiation safety management by general characteristics showed statistically significant differences according to age (p < 0.01), marital status (p < 0.01), and hospital size (p < 0.001). Behavior level of radiation safety management by general characteristics showed statistically significant differences according to clinical experience (p < 0.001) and hospital size (p < 0.05). In the relation between knowledge, attitude, and behavior on radiation safety management, higher level of radiation safety management knowledge correlated to higher levels of attitude and behavior. In addition, higher levels radiation safety management attitudes correlated to higher levels of radiation safety management behavior. Improvements/Applications: The correct radiation safety management through practitioner training was necessary to reduce radiation doses on computed tomography radiological technologists and patients.

Keywords

Radiation Safety Management, Knowledge, Attitudes, Behavior, Radiological Technologists, CT, IJST.

Full Text