• 대한방사선협회지
• /
• 제30권1호
• /
• pp.28-35
• /
• 2004

Purpose : The purpose of this study is to compare the job satisfaction between regular radiologists and non-regular radiologists in general hospital and to research the factors of affecting job satisfaction. Materials and Methods : The subject is 120 radi

• Imaging Science in Dentistry
• /
• 제51권2호
• /
• pp.129-136
• /
• 2021

Purpose: This study investigated the effects of 1 year of training on imaging diagnosis, using static ultrasonography (US) salivary gland images of Sjögren syndrome patients. Materials and Methods: This study involved 3 inexperienced radiologists with different levels of experience, who received training 1 or 2 days a week under the supervision of experienced radiologists. The training program included collecting patient histories and performing physical and imaging examinations for various maxillofacial diseases. The 3 radiologists (observers A, B, and C) evaluated 400 static US images of salivary glands twice at a 1-year interval. To compare their performance, 2 experienced radiologists evaluated the same images. Diagnostic performance was compared between the 2 evaluations using the area under the receiver operating characteristic curve (AUC). Results: Observer A, who was participating in the training program for the second year, exhibited no significant difference in AUC between the first and second evaluations, with results consistently comparable to those of experienced radiologists. After 1 year of training, observer B showed significantly higher AUCs than before training. The diagnostic performance of observer B reached the level of experienced radiologists for parotid gland assessment, but differed for submandibular gland assessment. For observer C, who did not complete the training, there was no significant difference in the AUC between the first and second evaluations, both of which showed significant differences from those of the experienced radiologists. Conclusion: These preliminary results suggest that the training program effectively helped inexperienced radiologists reach the level of experienced radiologists for US examinations.

• 보건의료산업학회지
• /
• 제4권1호
• /
• pp.111-123
• /
• 2010

The purpose of this study is to examine relations between the job satisfaction and separation intent of radiologists from secondary medical institutes, providing basic information needed to earlier prevent radiologists' separation, improve their quality and effectively manage them. 1. The subjects' job satisfaction was 2.32 points in mean score, which was below the average. 2. Concerning difference in job satisfaction among the subjects in accordance with their demographic characteristics, it was found that radiologists are significantly different among them in job satisfaction according to their age and position. 3. The surveyed radiologists' intent of separation was 2.89 points in mean score, which was not significantly high. 4. Concerning difference in the intent of separation among the participants in accordance with their demographic characteristics, it was found that radiologists are significantly different among them in the intent of separation according to their age, marital status, position and average monthly income. 5. There were significant correlations between the subjects' job satisfaction and intent of separation. In other words, the higher radiologists are in job satisfaction, the lower they are in the intent of separation.

• 치과방사선
• /
• 제29권1호
• /
• pp.261-274
• /
• 1999

Objectives: The purpose of this study was to evaluate the optimal distance and angle of observers by modulation transfer functions(MTFs) and receiver operating characteristics(ROCs), Material and Methods: Digital periapical radiograms were taken from 43 patients who have dental diseases(19 patients : dental caries. 12 patients : periapical lesions, 12 patients : periodontal diseases). Segmental images(4×4cm) were evaluated by 4 MTFs and ROC analysis. Results: The optimal distance(magnification) using MTF by Mannos & Sakrison was 12.97. and those by Nill. Ngan and Rao were 8.39, 4.78. 5.84 respectively. The optimal distance obtained from 4 radiologists by ROC analysis was 32cm(Az value: 0.89). and it was 40cm(Az value: 0.78) from 4 non-radiologists. There were significant differences of Az values between 4 radiologists and 4 non-radiologists at 24. 32 and 40cm (P<0.05). No significant differences of optimal distances were observed using 4 MTFs among +20, +10, 0, -10, -20 degrees(P>0.05). The optimal angle obtained from 4 radiologists by ROC analysis was +20 degree(Az value: 0.91). and no significant differences of Az values were observed among +20, +10, 0, -10 and -20 degrees(P>0.05). The optimal angle obtained from 4 non-radiologists by ROC analysis was 0 degree(Az value : 0.81). and no significant differences of Az values were observed among +20, +10, 0, -10 and -20 degrees(P>0.05). And there was significant difference of Az value between 4 radiologists and 4 non-radiologists at +20 degree(P<0.05). but no significant differences of Az values were observed among +10, 0, -10 and -20 degrees(P>0.05).

• 보건의료산업학회지
• /
• 제5권2호
• /
• pp.35-51
• /
• 2011

The purpose of this study is to examine relations between the job stress of radiologists, who are serving at secondary medical institutions, and their intent of separation, providing basic information necessary to earlier prevent the separation, improve the quality of radiologists and ensure a more effective personnel management of the professionals. For the purpose, this researcher conducted a structured questionnaire survey of 221 radiologists from Nov 1 to 30, 2010 who were serving at secondary medical institutions located in Busan. Findings of the study can be summarized as follows. 1) The surveyed radiologists were scored 2.82 points in average in terms of job stress. This indicates that they are suffering from job stress higher than moderate. 2) The subjects were significantly different from each other in job stress according to their age, total service period, department where they were serving, satisfaction with their hospital and satisfaction with the foresaid department. 3) The subjects were scored 2.59 points in average in terms of the intent of separation. This indicates that the surveyed radiologists are not so willing to change their job. 4) Those radiologists were significantly different from each other in the intent of separation according to their age, marital status, educational background, average monthly income, total service period, the period of service at a department where they belonged now, position, satisfaction with their hospital and satisfaction with the foresaid department. 5) There were significant correlations between the subjects' job stress and intent of separation.

• 한국방사선학회논문지
• /
• 제10권2호
• /
• pp.89-99
• /
• 2016

방사선사의 이직의도에 영향을 미치는 요인을 분석하기 위하여 부산시내 병원 급 의료기관에 근무하는 방사선사 200명을 대상으로 구조화된 설문지를 통해 자료를 수집하였다. 이에 대한 결과를 요약하면 다음과 같다. 이상의 연구결과에서 직무만족이 높을수록, 업무스트레스가 적을수록, 조직몰입이 높을수록 이직의사가 적다는 것을 알 수 있었고, 방사선사 이직을 감소시키기 위해 내적동기부여 및 방사선사의 인력관리에 중요함을 인식하고 과중한 업무량과 방사선사인력부족, 불합리한 인사관리 제도를 개선하고 적절한 보수지급과 다양한 승진의 기회를 제공 및 직무에 만족감을 증대시키는 노력 하지 않으면 방사선사 이직 율이 낮아지지 않을 것으로 사료되며, 이러한 요구는 병원당국의 제도적 뒷받침이 수반되어야 한다.

• 보건의료산업학회지
• /
• 제7권1호
• /
• pp.107-118
• /
• 2013

The purpose of this study is to grasp the image of radiologists perceived by college students of radiology. The survey subjects of this study were selected college students with major in radiology with 3-year system who are attending universities where are located in Daegu and Gyeongbuk area. As for distribution and collection of questionnaire, the objective of research was explained from April 2, 2012 to April 30. 220 people's questionnaires were finally analyzed with a self-administrative method after being widely distributed. Statistical analysis was carried out frequency analysis, t-test, ANOVA, and correlation analysis. To examine factors of having influence upon the image of radiologists, the multiple regression analysis was carried out. As for survey subjects' general characteristics, gender was indicated to be 58.2% for men and 41.8% for women. School year accounted for 38.2% for freshman, 29.1% for sophomore, and 32.7% for junior. Age was the largest in under 21 years old with 43.6%. The next was in order of over 23 years old with 32.7% and 22 years old with 20%. As a result of research, the image of radiologists was being perceived positively. The radiologist was being recognized as a specialist who is sincere oneself and has strong responsibilities, does valuable and worthwhile work, and has the matured professional knowledge. However, the individual image of radiologists was a little negative. Accordingly, to promote the individual image of radiologists, a specific and positive strategy is needed for approaching people as the specialized job with autonomy and responsibility as well as radiologist oneself.

• Korean Journal of Radiology
• /
• 제24권11호
• /
• pp.1052-1053
• /
• 2023

• Korean Journal of Radiology
• /
• 제20권5호
• /
• pp.749-758
• /
• 2019

Objective: To investigate whether a computer-aided diagnosis (CAD) system based on a deep learning framework (deep learning-based CAD) improves the diagnostic performance of radiologists in differentiating between malignant and benign masses on breast ultrasound (US). Materials and Methods: B-mode US images were prospectively obtained for 253 breast masses (173 benign, 80 malignant) in 226 consecutive patients. Breast mass US findings were retrospectively analyzed by deep learning-based CAD and four radiologists. In predicting malignancy, the CAD results were dichotomized (possibly benign vs. possibly malignant). The radiologists independently assessed Breast Imaging Reporting and Data System final assessments for two datasets (US images alone or with CAD). For each dataset, the radiologists' final assessments were classified as positive (category 4a or higher) and negative (category 3 or lower). The diagnostic performances of the radiologists for the two datasets (US alone vs. US with CAD) were compared Results: When the CAD results were added to the US images, the radiologists showed significant improvement in specificity (range of all radiologists for US alone vs. US with CAD: 72.8-92.5% vs. 82.1-93.1%; p < 0.001), accuracy (77.9-88.9% vs. 86.2-90.9%; p = 0.038), and positive predictive value (PPV) (60.2-83.3% vs. 70.4-85.2%; p = 0.001). However, there were no significant changes in sensitivity (81.3-88.8% vs. 86.3-95.0%; p = 0.120) and negative predictive value (91.4-93.5% vs. 92.9-97.3%; p = 0.259). Conclusion: Deep learning-based CAD could improve radiologists' diagnostic performance by increasing their specificity, accuracy, and PPV in differentiating between malignant and benign masses on breast US.

• 한국환경보건학회지
• /
• 제44권6호
• /
• pp.591-598
• /
• 2018

Objectives: Radiologists are the service worker with emotional labor who works within a relatively small space of the hospital, dealing with multiple patients. The purposes of this study were to search the turnover intention and job satisfaction through the work of emotional labor of radiologists. Methods: A questionnaire survey was conducted on 109 radiologists working at university hospitals, general hospitals, clinics and other facilities across the domestic. The regions were aggregated according to Quality Function Deployment (QFD) method, which was applied in proportion to the population distribution. A questionnaire was composed of 26 questions which were used in Korean Emotional Laboratory Scale (K-ELS). Results: The overall emotional labor score was $48.3{\pm}15.8$. The most pressing requirement of radiologists to improve emotional labor was the topic about the exchange of colleagues ($75.8{\pm}15.6$ score, ${\beta}=0.78$, p<0.001). Conclusions: In order to resolve the emotional labor of radiologists, it could be necessary to have a meeting through training and workshops where the exchange of colleagues can take place.