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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society of Radiology
Journal Basic Information
Journal DOI :
The Korean Society of Radiology (KSR)
Editor in Chief :
Volume & Issues
Volume 10, Issue 5 - Aug 2016
Volume 10, Issue 4 - Jun 2016
Volume 10, Issue 3 - Apr 2016
Volume 10, Issue 2 - Feb 2016
Volume 10, Issue 1 - Jan 2016
Selecting the target year
Influence of Social Support for a Cancer Patient undergoing Radiation Treatment on Quality of Life
Kim, Sunggil ; Ruy, Soyeon ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 145~152
DOI : 10.7742/jksr.2016.10.3.145
This study, targeting a cancer patient undergoing radiation treatment, conducted this research with the aim of looking into the relevance between family support belonging to a patient's primary environment, social support consisting of medical personnel, and the quality of life; this study set 199 patients available for investigation from Jan. 25, 2012 until April 30, 2012 as research subjects among the cancer patients undergoing radiation treatment at the Radiation Oncology Department of a university hospital located in Seoul Metropolitan City. In the analysis of collected data, this study conducted t-test using SPSS/WIN 18.0 Statistical Program, and looked into the relevancy between independent variables including social support, and the quality of life as a dependent variable using analysis of variance, correlation analysis and multi-regression analysis. Conclusively, it was found that the higher the family support perceived by a cancer patient undergoing radiation treatment, the higher the quality of his/her life; thus, this study could learn that there exists a significant relation between family support and the quality of life. Accordingly, it is thought that it's necessary to develop an intervention strategy which makes it possible to intensify family support and social support, etc. for the purpose of improving the quality of life of cancer patients undergoing radiation treatment; further, this study thinks that it's necessary to do additional research which could analyze diverse aspects by subdividing the future quality of life by area.
A Monte Carlo Study of Secondary Electron Production from Gold Nanoparticle in Kilovoltage and Megavoltage X-rays
Hwang, Chul-Hwan ; Kang, Se-Sik ; Kim, Jung-Hoon ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 153~159
DOI : 10.7742/jksr.2016.10.3.153
This study investigated relationship between secondary electrons produced from single gold nanoparticle as a result of its interaction with radiation and particle size and incidence energy, provided basic data related to the dose enhancement effect based on gold nanoparticles. Monte Carlo simulation was applied by using MCNPX MC code, 50, 100, 150 kV and 6, 15 MV x-ray energy was used. In a water phantom, single gold nanoparticles that are 30, 50, 70, 90, and 110 nm in diameter were placed and the tally volume was designated at every 10 nm. Difference in electrons produced from gold nanoparticles was normalized based on absence of nanoparticle. When the X ray energy decreased and the diameter of gold particles increased, more electrons were produced. When the energy was lower, in the linear formula related to nanoparticle size and electron production, the gradient was higher. And, in comparison to the MV X-ray, at kV X-ray, significantly more electrons were produced. This study can be used as data to understand the dose enhancement effect based on gold nanoparticles, and further research related to various materials that dose enhancement including gold nanoparticles needs to be conducted.
A Survey on the Radiation Exposure Doses Reduction Plan through Dose Index Analysis in the Pediatric Brain Computed Tomography
Kim, Hyeon-Jin ; Lee, Hyo-Yeong ; Im, In-Chul ; Yu, Yun-Sik ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 161~169
DOI : 10.7742/jksr.2016.10.3.161
In this study, the proposal to seek ways to reduce the amount of radiation is drawn by comparing and analyzing CT Dose Index(CTDI) on the pediatric head CT which was performed at the busan regional hospitals, to the national diagnostic reference levels. As a result, it was appeared to exceed the amount of the dose recommendation in order of hospital, general hospital and senior general hospital in the hospital-specific classification and from 2 to 5 year, from 1 month to 1 year and from 6 to 10 year in the age-specific classification. In addition, the amount of the dose recommendation was exceed in order of helical, axial and volume in the scan-specific classification. As the results of the scan range reset to match the diagnostic reference level, the dose reduction showed 11.68%, 15.79% and 20.66% in senior general hospital, general hospital and hospital respectively. In the results of analysing patient average scan ranges which does not deviate from the guideline of patient dose recommendation, there was age of 1 month to 1 year, 2 to 5 year and 6 to 10 year of
Variation of Indoor Average Ozone Concentration within the Radiation Therapy Room by High Energy Radiation
Lee, Jin-kook ; Lee, Hyo-Yeong ; Im, In-Chul ; Yu, Yun-Sik ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 171~180
DOI : 10.7742/jksr.2016.10.3.171
This study was to evaluate the change in characteristics of concentration of ozone after exposure to high energy radiation in linac room. Background ozone concentration of linac room was measured and compared to ozone concentration around linac room. Background ozone concentration of linac room was mean
. It was 50% of the ozone concentration(
) around linac room(p<0.05). The concentration of ozone after exposure to high energy radiation in linac room was elevated to double of background ozone level, intensity after exposure. with exposure time concentration of ozone increased proportionally. It showed maximum level at 130~180seconds and slowed a tendency to saturate. It required more than 10 minutes for ozone concentration in linac room to drop to ozone concentration around linac room. The concentration of ozone after exposure to high energy radiation is high enough to cause specific physical symptoms, such as acute dyspnea or chest pain due to dry cough. Exposure to high concentration of ozone in sealed linac room can aggravate pulmonary disease, so special attention is needed.
Comparison of Operator Radiation Exposure Dose undergoing Cardiac Angiography and Cardiac Intervention
Kim, Jungsu ; Kwon, Soonmu ; Jung, Haekyoung ; Lee, Bongki ; Ryu, Dongryeol ; Kwon, Hoseok ; Cho, Byungryul ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 181~186
DOI : 10.7742/jksr.2016.10.3.181
Cardiac angiography(CA) or cardiac intervention(CI) is one of the major examination methods applied to the detection of cardiovascular diseases using X-rays. These CA and CI procedures require radiation exposure to patients and physicians. We evaluated the radiation dose to cardiac operator during the each case of CA and CI procedures. The number of patients is 113 patients in CA and 34 patients in CI. Mean fluoroscopy time, mean cine time, and mean total cumulative dose area product(DAP) in patients during CA and CI was 165.9 sec vs. 1200.0 sec, 30.31 sec vs 107.5 sec, and
, respectively. Mean dose of thyroid, over chest apron and under chest apron in operator during CA and CI was 15.84 uSv vs 89.81 uSv, 20.16 uSv vs 123.20 uSv, and 0.30 uSv vs 2.40 uSv, respectively. Mean effective dose of operator during CI was about 6 times greater than during CA. Also there was significant inter-relationship between fluoroscopy or cine time and effective dose in operator during CA and CI(p=0.001 and p=0.001, respectively).
Analysis of Hematological Factor to Predict Plaque of the Carotid Artery in Ultrasound Images
Yang, Sung Hee ; Kang, Se Sik ; Lee, Jinsoo ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 187~193
DOI : 10.7742/jksr.2016.10.3.187
In this study, we performed the carotid artery ultrasound targeting 140 subjects who have conducted to evaluate the changes in intima-media thickness(IMT) and plaque correlated with the presence or absence of a hematological test of the carotid artery. Considering that the IMT thickness more than 1mm is abnormal based on the carotid artery ultrasound to assess the presence or absence of plaque, and examined the correlation by classifying the blood lipid value and the fasting blood glucose level through the serum test. Consequently, the fasting blood glucose level is being analyzed as independent predictors of causing dental plaque(p=0.033), cut off value was determined as 126 mg/dL(sensitivity 56.25%, specificity 68.38%) in ROC curve analysis. Furthermore, the odds ratio appeared 1.01 times the value in the Logistic regression. Therefore, it seemed that the necessity to prospective studies in a number of subjects are considered, and also taking into account a number of blood test values along with the sonography of the carotid artery as a valuable part for effective primary prevention and follow-up observation of the cardiac and brain vascular disease is highly recommended.
The Apoptosis according to the Processing Irradiation and The Tumor Necrosis Factor
Lee, Jaeseob ; Jang, Seongjoo ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 195~200
DOI : 10.7742/jksr.2016.10.3.195
Acute promyelocytic leukemia(APL) is not just the poor grades of treating a type of blood cancer hayeoteul combination with chemotherapy despite concurrent radiation therapy are known to exhibit a greater effect and also works on normal cells to result in side effects. In this study, when after treatment with gamma rays, such as
in order to reduce these side effects was confirmed how affected the cell death of normal cells and cancer cells. HL-60 cells were used as the APL cell line HL-60 cells were differentiated with DMSO for treatment are shown the properties of normal granulocytes was used as a control group. As a result, HL-60 cells treated with
and gamma rays with only showed a cytotoxic effect by inducing the apoptosis cells were put to death. Consequently,
is thought to active substances that can increase the efficiency of cancer treatment to increase the removal of cancer cells when used with low-density gamma-ray treatment in order to eliminate the side effects of chemotherapy.
Usefulness of X-ray Guided Biopsy and Ultrasound Guided Biopsy in Breast Microcalcification Biopsy
Choi, Miseon ; Song, Jongnam ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 201~206
DOI : 10.7742/jksr.2016.10.3.201
Social interest in breast cancer has increased. The most basic exams for diagnosis include breast X-ray and breast ultrasound. In particular, breast microcalcification requires histological diagnosis, and breast microcalcification biopsy is commonly performed. Therefore, this study aimed to analyze and assess X-ray guided biopsy (needle localized open biopsy) and ultrasound guided biopsy (sono guided core needle biopsy), which are basics in diagnosis of microcalcification. Targeting 241 cases in which magnification mammography was performed for patients who visited the hospital due to breast microcalcification, age distribution and the location of lesions were analyzed in X-ray guided biopsy and ultrasound guided biopsy. By classifying exams performed after magnification mammography, the frequencies of X-ray guided biopsy and ultrasound guided biopsy were analyzed, and malignant and benign results were confirmed. The results showed that 64 cases(26.6%) were X-ray guided biopsy, which was 5.4 times higher than 12 cases(4.9%) of ultrasound guided biopsy. Due to development of ultrasound equipments, stereotactic vacuum-assisted biopsy, etc. the methods of histological diagnosis of microcalcification have become diverse, but when considering characteristics and limitations of each exam, X-ray guided biopsy is thought to be most accurate and useful.
Awareness and Consciousness Survey of Worker's for Radiation Exposure Dose Reduction from Pediatric Brain CT Examination
Kim, Hyeon-Jin ; Lee, Hyo-Yeong ; Im, In-Chul ; Yu, Yun-Sik ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 207~214
DOI : 10.7742/jksr.2016.10.3.207
In this study, it was an investigation of the degree of awareness and consciousness of the radiology technicians about radiation protection working in the computed tomography room in Busan when the pediatric underwent brain CT scan. It was sorted by university hospital, general hospital and hospital and compared the scores of awareness and consciousness. As a result of awareness, university hospital had the highest point of 42.29 followed by general hospital and hospital of 38.43 and 34.06 respectively. On the other hand, the average score of consciousness was the highest in hospital of 29.19 followed by general hospital and university hospital of 24.68 and 21.37 respectively. It is considered to need assistance to cultivate an awareness of the radiation through refresher training and conferences, etc in order to increase the awareness of the general hospitals and hospitals for CT workers. In addition, it is also expected to pay for efforts to increase the consciousness of CT workers in university hospitals seeking the optimization of radiation protection and dose reduction of radiation exposure for the pediatric.
Changes in Spatial Resolution at Position of the Detector in Digital Mammography System
Kim, Hye-Min ; Chon, Kwon Su ;
Journal of the Korean Society of Radiology, volume 10, issue 3, 2016, Pages 215~222
DOI : 10.7742/jksr.2016.10.3.215
X-ray mammography is the most effective method for the diagnosis of calcified lesions of various breast diseases. To reduce patient dose and to obtain optimal image required for diagnosis, the performance of the mammography system should be maintained continuously. Because the target (anode) angle of the X-ray tube is measured from the central X-ray, the effective angle can be slightly different in view of the position on the detector, which can result in degrading spatial resolution of the imaging within the field of view. In this study, we measured the MTF to examine spatial resolution for positions on the detector in the digital mammography system. For a tungsten wire of
diameter, the highest spatial frequency was obtained. It meant that a wire diameter for measuring MTF through LSF should be small compared to the pixel size of the detector used in the mammography system. The spatial resolution showed slightly different performance according to positions on the detector. The center position gave the best spatial resolution and positions away from the center showed the degraded performance although the difference of the spatial resolution was small. The effective focal spot size of the full width at half maximum also showed similar result. It concluded that the slightly increase of the effective focal spot size gave the degradation of the spatial resolution for positions on the detector.