• Health Policy and Management
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• v.16 no.3
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• pp.70-85
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• 2006

The purposes of this study were (1) to describe patients' behaviors to protect themselves from medical errors and their involvement in decision making on the diagnostic and treatment procedures (2) to examine whether patients' characteristics, such as age, sex, education, experience of hospitalization and/or surgery influence their self protect behaviors and involvement in decision making on the diagnostic and treatment procedures. A survey was conducted with 99 patients visited one university hospital in Seoul, Korea. A 20-item questionnaire, a 4-point Likert scale, was used to measure the degree of patients' active involvement in decision making; patients' self protect behaviors regarding medication, hospitalization, and surgery; and communication (Cronbach's alpha=0.801). SPSS 12.0 was used for the descriptive and correlation analysis. Only 6.1% of the participants were involved in the decision making process for the diagnostic tests and treatment. More patients did self-protect behaviors associated with the medication than other areas but widely varied from 18.2 to 94.3 % among various items. More people with age of 60 or older compared to people in younger age groups reported more protect behaviors particularly associated with medication. Patient education is needed to improve their active role in preventing medical errors and to promote patients' safety.

• Journal of Chest Surgery
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• v.28 no.11
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• pp.1014-1018
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• 1995

To confirm diagnosis and to set proper therapeutic strategy, open lung biopsies were done in 57 patients who were suspected for diffuse interstitial lung disease from January 1985 to December 1994. Among them, 35 were male and 22 were female[M:F=l.6: 1 and mean age of the patients is 53.5$\pm$ 2.3[24-81 years. Tissue for histologic studies were obtained from left lung in 33, from right lung in 24according to the distributions of the pathology. Preoperative diagnostic work-up`s were chest X-ray, CT[HRCT scan, sputum study, bronchoscopy[BAL, TBLB and PTNA and all of them were unsuccessful to confirm diagnosis. In comparison of pulmonary function tests between preoperative and postoperative values, there were no significant differences in FVC, FEV1, FEV1/FVC[p 0.05 but in AaDO2[p[0.05 . Postoperative complications including atelectasis, wound infection, pulmonary edema and respiratory insnfficiency, were shown in 5 cases[8.8% , and two of them were died of respiratory failure and sepsis[mortality rate 3.5% . Pathologic diagnosis was confirmed in 53 cases postoperatively but it was undetermined in 4[diagnostic yield rate 93.0% . In comparison between preoperative clinical diagnosis and postoperative pathologic diagnosis, new diagnosis were made in 17 cases[29.8% and preoperative tentative diagnosis were confirmed histologically in 36 cases[63.2% . In 4 cases[7.0% , however, diagnoses were not confirmed after biopsies. Therapeutic plans were reset in 46 cases[80.7% in accordance with the final diagnosis.In conclusion, open lung biopsy is recommended for a specific diagnosis and proper therapeutic plan in diffuse interstitial lung diseases because of its high diagnostic yield Irate and it`s relatively low morbidity and mortality rate in these tompromised patents.

• The Journal of Internal Korean Medicine
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• v.37 no.6
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• pp.940-948
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• 2016

Objectives: This exploratory trial evaluated the possibility of quantitatively measuring several aspects during the "abdominal examination" of traditional Korean medicine. The main results of this study will be used to develop a new diagnostic device for abdominal examinations. Methods: Fifteen healthy volunteers were recruited for this study. Three certified Korean medical doctors assessed the existence of pressure pain, the elasticity of the abdominal muscle, and the tonus at CV12 as gold standards. Then, 2 well-trained investigators measured the pressure pain threshold (PPT), the indentation depth of a bar, and repelling force by pressing CV12. Each investigator measured the above 3 variables 2 times at 1 min intervals using a modified digital algometer. Reliability and validity tests of the 3 variables were performed. Results: There were statistically significant coefficients of intraclass correlation on the 3 variables both between and within the investigators (P<0.001). Also, PPT and repelling force showed statistically significant high sensitivity and specificity in a ROC curve. However, the indentation depth of the bar presented relatively low sensitivity. Conclusions: This new diagnostic method using a modified digital algometer could be a useful tool for quantitative measurement in "abdominal examinations". However, future rigorous clinical studies with a large population will be needed for the verification of its usefulness.

• Journal of the Korean Society of Radiology
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• v.9 no.5
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• pp.315-322
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• 2015

The purposes of this study were to compare the sensitivities of two tests, QST(quantitative sensory test)and PPG(photoplethysmography) in normal adults. We evaluated the sensory thresholds of QST and PPG and diabetes mellitus test in 17 normal adults. The finding of this study can be summarized as follow :The diagnostic sensitivities of QST was similar to PPG. There is a direct correlation between the amount of Blood sugar and parasympathetic nerve in ANS. Concluded that the QST might be complement to NCS for early of diabetic polyneuropathy. A new diagnostic approach, QST was introduced and exploited for diagnosis. This study provides support for PPG performed a ANS analysis.

• Journal of the Korean Society of Radiology
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• v.14 no.3
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• pp.221-233
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• 2020

CT(computed tomography, CT) examinations is one of the most useful diagnostic equipment for identifying information in the human body in diagnostic radiology. Recently, the number of CT scans is increasing every year due to the high reliability of CT scans. Increasing the number of tests will accelerate the aging of CT devices, which is why the importance of quality management for CT devices is on the rise. Particularly in CT, quality management refers to a behavior of figuring out and correcting all sorts of hindrance factors that can cause all the problems related to the equipment associated with the diminishment of diagnosed area due to the reduction of image quality in clinical imaging in advance and maintaining a consistent level of image quality and obtaining a proper image. Here, these researchers aim to summarize and report the general contents of quality management in CT.

• Clinical and Experimental Pediatrics
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• v.55 no.1
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• pp.11-17
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• 2012

Purpose: Early identification of neonatal sepsis is a global issue because of limitations in diagnostic procedures. The objective of this study was to compare the diagnostic accuracy of neutrophil CD64 and C-reactive protein (CRP) as a single test for the early detection of neonatal sepsis. Methods: A prospective study enrolled newborns with documented sepsis (n=11), clinical sepsis (n=12) and control newborns (n=14). CRP, neutrophil CD64, complete blood counts and blood culture were taken at the time of the suspected sepsis for the documented or clinical group and at the time of venipuncture for laboratory tests in control newborns. Neutrophil CD64 was analyzed by flow cytometry. Results: CD64 was significantly elevated in the groups with documented or clinical sepsis, whereas CRP was not significantly increased compared with controls. For documented sepsis, CD64 and CRP had a sensitivity of 91% and 9%, a specificity of 83% and 83%, a positive predictive value of 83% and 33% and a negative predictive value of 91% and 50%, respectively, with a cutoff value of 3.0 mg/dL for CD64 and 1.0 mg/dL for CRP. The area under the receiver-operating characteristic curves for CD64 index and CRP were 0.955 and 0.527 ($P$ <0.01), respectively. Conclusion: These preliminary data show that diagnostic accuracy of CD64 is superior to CRP when measured at the time of suspected sepsis, which implies that CD64 is a more reliable marker for the early identification of neonatal sepsis as a single determination compared with CRP.

• Journal of Oriental Neuropsychiatry
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• v.25 no.4
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• pp.383-388
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• 2014

Objectives: Patients with dementia are increasing in Korea. So the importance of accurate diagnosis and treatment of dementia is growing. In this paper, we evaluated the result of employing the Korean medical diagnostic pattern as a tool in clinics. Methods: Patients diagnosed with Alzheimer's disease were evaluated using the Korean medical diagnostic pattern tool. Results: The number of patients with liver-kidney yin deficiency pattern/syndrome was 35. Analyzing the ratio difference between the 'liver-kidney yin deficiency' group and the 'not liver-kidney yin deficiency' group revealed that the ratio of the responses to the fourth question was less than zero. The ratio of the responses to the fifth, seventh, and eight questions were all less than 10%. The ratio of the responses to the first and second questions were greater than 30%. Conclusions: Of the six diagnostic patterns, liver-kidney yin deficiency was the greatest in the study subjects. The fourth question in the liver-kidney yin deficiency tool tests for the lack of appropriateness whereas the fifth, seventh, and eight questions test for lack of discrimination. Applying more weight to the first and second questions was an excellent choice to increase the discrimination.

• KIPS Transactions on Computer and Communication Systems
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• v.5 no.9
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• pp.285-292
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• 2016

By adding short-range wireless communication function such as Bluetooth and Wi-Fi to the last vehicle in conjunction with a smart phone, a modern automobile is becoming entertainment screen to determine a variety of information such as car location information, diagnosis information, etc. through the ECU vehicle electronic control unit. In this study, by utilizing short-range communications capability of the on-board diagnostic devices and smart phones in association with the on-board diagnostics, compatibility tests among a number of smart phone models, Bluetooth and NFC(Near Field Communication) were carried out and those results were analyzed. Furthermore, composition of on-board diagnostic device having Bluetooth and NFC interface function and the fault diagnosis function were implemented, and fault diagnosis debugging program was developed. In addition, fault diagnosis data of the vehicle via the OBD-II interface was extracted. Finally, the on-board diagnostics CAN Protocol implementation has been proposed, and the results of work was analyzed.

• The Journal of Korean Obstetrics and Gynecology
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• v.28 no.1
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• pp.102-112
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• 2015

Objectives: This study was performed to obtain reference data of traditional Korean medicine diagnostic methods for the practical usage in women infertility. Methods: The study involved 38 female patients of age 20-38 years that had diagnosed of infertility. All the subjects answered to pattern identification questionnaire and Questionnaire for the Sasang Constitution Classification (QSCC II). Pattern identification scores and constitution types have been analyzed with variables of infertility factors and age. Statistical analysis was performed by adopting descriptive and inferential tests. Results: In pattern identification questionnaire analysis, the patterns were observed in order of frequency: liver stasis; blood deficiency; kidney-yang deficiency; kidney-yin deficiency; damp-heat; blood stasis; and phlegm. The group, less than 35 years old, had the higher average score of liver stasis (p<0.05). Also, the group with tubal and peritoneal factors, had the higher average score of blood deficiency (p<0.05). In QSCC II analysis, So-yang type had the higher average score of liver stasis, kidney-yang deficiency, and kidney-yin deficiency. So-eum type had the higher average score of liver stasis, kidney-yang deficiency, kidney-yin deficiency, and blood deficiency. While, Tae-um type had the higher average score of liver stasis and phlegm. Conclusions: We would accumulate the clinical data for the practical usage of traditional Korean medicine diagnostic methods in women infertility.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.7
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• pp.127-132
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• 2019

Influenza is an infectious disease caused by an influenza virus with symptoms of high fever and headache. Since influenza especially mutates into multiple subtypes in the carrier's body, it is a serious threat for mankind such as Spanish influenza. The treatment of influenza infection mandates the use of antiviral drugs through rapid diagnostic test. Generally, immunochromatography-based rapid influenza diagnostic tests are used for rapid diagnosis in an emergency. In this paper, we propose an influenza analysis algorithm based on image processing to examine a large number of patients suspected of being infected with influenza. Also, we propose a robust influenza analysis algorithm based on the joint cumulative mass function under varying radiometric conditions such as illuminant and exposure differences. Simulation results show that the proposed algorithm significantly reduces the error of influenza diagnosis under different radiometric conditions.