• 대한임상검사과학회지
• /
• 제53권1호
• /
• pp.131-136
• /
• 2021

이중초음파는 반복적으로 검사를 실시할 수 있고, 비교적 저렴하기 때문에 다양한 진료분야에서 널리 이용되고 있다. 그중, 목동맥이중초음파는 뇌혈관질환을 진단하고 예후를 예측하는데 매우 유용한 비침습적 검사이다. 임상에서 목동맥이중초음파의 소요시간을 줄이고 결과의 정확성을 높이는 것은 매우 중요한 작업이다. 일반적으로 환자의 정보를 미리 숙지하는 것만으로도 신속히 정확한 검사를 수행할 수 있다. 하지만 예상과 달리 새롭게 발견되는 목 혈관질환으로 인해 검사하는데 종종 어려움을 겪기도 한다. 따라서 목 부위에서 발생할 수 있는 다양한 증례들을 숙지하는 것은 신속히 정확한 검사결과를 산출하는데 큰 도움이 될 것이다. 이러한 맥락에서, 본 연구는 목동맥이중초음파를 시행하던 중 예기치 않게 발견된 목 혈관질환 증례 3가지를 소개하고자 한다. 증례1. 속목동맥 폐색과 바깥목동맥으로부터 분지된 대뇌혈관; 증례 2. 속목정맥에서 관찰된 혈전; 증례 3. 척추동맥에서 관찰된 미세색전.

• 대한방사선기술학회지:방사선기술과학
• /
• 제5권1호
• /
• pp.77-95
• /
• 1982

The result of this study from surveying and analyzing the present situation of educational institutes of radiologic technology, educational situation of radiologic technology, and students' attitude and recognition about the education of radiologic technology, the faculty's thought of it throughout the country from October, 1981 to April, 1982 is as follows: 1. The total number of educational institutes for radiologic technology is 11, but all of them are private colleges classified by foundation and 1,414 freshmen were admitted to enter the colleges by admission quotas of students at present in March, 1982. 2. The number of male(1965-1982) is 3,046(78.0%), that of female is 856(22.0%), and total of them is 3,904 that graduated from the departments of radiologic technology in 9 junior colleges in Korea. 3. The number of the instructional staffs in radiologic technology in Korea is 32, but among them 1 professor, 1 associate professor, 16 assistant professors and 14 full-time instructors. 4. The credits for graduation are 80-96 credits and students need required liberal arts and required major studies to get the qualification for graduation. 5. In the national examination for radio-technologist license, total 7,150 persons took the examination, but only 2,796 persons passed it, therefore, the average passed rate is 39.1% from the year 1965 to 1982. 6. 61.3% of students expressed dissatisfaction about their campus lives, the reason of which is mainly poor educational facilities(26.7%), insufficient number of faculty(21.2%) and negative Recognition on junior college from society, etc. 7. About the education of their major studies of colleges, 70.9% of students answered that they were short of laboratory works and clinical trainings rather than theoretical lessons. 8. The chief problem in practice works is about facilities and equipemtns for practice (students 39.1%, faculty 68.8%), and about the fact that too many students usually work at a time(students 17.1%, faculty 21.9%), etc. 9. 87.4% of students and 93.8% of faculty answered that clinical training in school is necessary. 10. Students' viewpoints on the radiologic technologist and the attitudes on the profession as a radiologic technologist are approximately affirmative. 11. Fields of employment to advance after graduation are mainly the fields related to their major studies(hospital, clinic, health clinic, industrial companies related and military officers of medical technology, etc.), which fields arc predominant to 74.5% rather than non-related fields(enrols into 4 year colleges, etc.). 12. 85.2% of students, 87.5% of the faculty expressed their opinions that the present academic years of 2 should be lengthened more. 13. 90.7% of the faculty expressed their opinions that the present students quotas should be reduced in whole or in part.

• 임상간호연구
• /
• 제21권2호
• /
• pp.143-153
• /
• 2015

Purpose: The purpose of this study was to develop a family-participated cardiac rehabilitation program and to test the effects of the program on self-efficacy, health behavior compliance, and family support for patients with percutaneous coronary intervention. Methods: The design of this study was a nonequivalent control group non-synchronize design. There were 30 participants in the experimental group and 29 in the control group. The program consisted of six consecutive cardiac rehabilitation education and counselling sessions for 5 weeks. Data were analyzed using $x^2-test$, Fisher's exact test, and t-test using the SPSS program. Results: Self-efficacy, health behavior compliance, and family support scores were significantly increased in the experimental group compared to those in the control group. Conclusion: These results suggest that this program may improve self-efficacy, health behavior compliance, and family support in patients with percutaneous coronary intervention. Therefore, this program in which family members were included in supporting patients' adherence to health behaviors is recommended for use in clinical fields for the cardiac rehabilitation.

• 대한의용생체공학회:학술대회논문집
• /
• 대한의용생체공학회 1997년도 춘계학술대회
• /
• pp.267-270
• /
• 1997

Oxygen saturation is an important parameter in clinical fields; fetal monitoring, apnea, emergency medicine etc. Because of monitoring patients continuously, pulse oximeter that measures oxigen saturation non-invasively is regarded attentively. But, though research about accuracy of signal extraction has been developed, it actually plays a supplementary part in hospital for not trusting the principle of measurement by clinicians. In this paper focusing on these things, first we suggested simple mathematical modelling on separating do components, ac components andnoise components in optical signal transmitted from fingertip or earlobe, and then we considered oxygen saturation computing algorithm using integral ratio of pulsating components. Last, we analyzed its effect by comparing received data.

• BMB Reports
• /
• 제41권10호
• /
• pp.685-692
• /
• 2008

Colorectal cancer (CRC) is the third most common malignancy in the world. Because CRC develops slowly from removable precancerous lesions, detection of the disease at an early stage during regular health examinations can reduce both the incidence and mortality of the disease. Although sigmoidoscopy offers significant improvements in the detection rate of CRC, its diagnostic value is limited by its high costs and inconvenience. Therefore, there is a compelling need for the identification of noninvasive biomarkers that can enable earlier detection of CRC. Accordingly, many validation studies have been conducted to evaluate genetic, epigenetic or protein markers that can be detected in the stool or in serum. Currently, the fecal-occult blood test is the most widely used method of screening for CRC. However, advances in genomics and proteomics combined with developments in other relevant fields will lead to the discovery of novel non invasive biomarkers whose usefulness will be tested in larger validation studies. Here, non-invasive molecular biomarkers that are currently used in clinical settings and have the potential for use as CRC biomarkers are discussed.

• 한국임상약학회지
• /
• 제23권1호
• /
• pp.49-56
• /
• 2013

Objective: The purpose of this study was to evaluate the patterns of Over-the-Counter (OTC) drugs and their interactions with prescription drugs in adults visiting a community pharmacy. Method: The subjects were 151 adults aged over 20 years visiting a community pharmacy in Asan-si from December 16th 2011 to February 1st 2012. We used a survey questionnaire. The survey inquired about the prevalence and the details of any OTC drug use and the characteristics of the study subjects. The drug interaction classification system from Lexicomp's Lexi-interact data fields was used to identify OTC drugs likely to have clinically significant interactions with prescription drugs. Results: The patterns of OTC drug use were related to thirties (from 30 to 40 years old), female gender, higher education, non-smoking, sometimes use of alcohol, and self-perceived normal health status. The most commonly used OTC drug category was antipyretic-analgesics (n=104, 53.3%), and the most commonly used ingredient was acetaminophen (n=67, 64.4%). The biggest motivation for taking OTC drugs was suggestion by pharmacists, reported by 55.6%. After reviewing each patient's prescription drugs and OTC drugs, 14 patients (36.8%) of 38 patients using prescription drugs were taking drug combinations with potential for clinically significant interactions. The concomitant use of OTC drugs with prescription drugs may lead to increased potentially harmful interactions. Conclusion: It is suggested that health-care professionals should be more aware of the potential and possible interactions and take into better account their patients' OTC drug use.

• 전기학회논문지
• /
• 제67권12호
• /
• pp.1690-1698
• /
• 2018

Recent advances in ICT technology have transformed many of our daily lives and attracted a lot of attention to personal health. Heart beat measurement that reflects cardiac activities has been used in various fields such as exercise evaluation and psychological state evaluation for a long time, but its utilization method is limited due to its differentiation from clinical electrocardiogram. Therefore, in this study, we could observe the change of the measured signal according to the change of the distance and the position of the measuring electrodes which are non-standard electrode configuration. Based on the electric dipole model of the heart, correlation with clinical electrocardiogram could be confirmed by synthesizing multiple surface potentials measured with a shorter electrode distance than standard one. From the electromagnetic point of view, the distance between the measuring electrodes corresponds to the distance that the electric potential by the cardiac electric dipole moves, and the electric potential measured at the body surface is proportional to the moving distance of the electric potential. Therefore, it is preferable to make the distance between electrodes as long as possible, and to position the measuring electrode close to the ventricle rather than the atrium. In addition, it was found that standard electrocardiographic waveforms could be synthesized by using arithmetic sum of multiple measuring electrodes due to the relationship of electrical dipole vectors, which is obtained by dividing and positioning a plurality of measuring electrodes on a reference electrode line, such as Lead-I, Lead-II direction. Also, we obtained a significant Pearson correlation coefficient ($r=0.9113{\pm}0.0169$) as a result of synthetic experiments on four subjects.

• 한국임상약학회지
• /
• 제31권2호
• /
• pp.96-103
• /
• 2021

Background: The number of elderly people with comorbidities who experience dysphagia associated with geriatric disorders, such as stroke, Parkinson's disease, and Alzheimer's dementia, is increasing. Consequently, the demand for long-term prescriptions of powdered medications is expected to rise. Most patients procure repackaged prescription medications from pharmacies; however, the guidelines regarding their expiration dates are unclear. Objectives: The aim of this study was to assess awareness among adults regarding the expiration dates and drug stability issues associated with repackaged prescription medications, including powdered medications. Methods: A questionnaire with 16 components was designed and distributed online (August 1-September 1, 2019) to adults aged 19 years or older. Statistical analyses, including descriptive analysis and chi-square test, were conducted on the obtained data. A p-value <0.05 was considered significant. Results: Data from 254 respondents were analyzed; 191 (75.20%) respondents worked in non-healthcare-related fields. A significant number of healthcare workers recognized the stability issues associated with powdered medications (p<0.001). However, a large proportion of healthcare workers were not aware of the expiration dates (p>0.05). Conclusions: More than half of the total respondents, including healthcare workers, were not familiar with the appropriate expiration dates of repackaged prescription medications. The establishment of evidence-based guidelines regarding drug expiration dates and the dissemination of awareness among patients are required. Furthermore, clinical practices including repackaging or pulverizing medications for long-term prescriptions should be avoided owing to the associated drug stability issues.

• Journal of Korean Neurosurgical Society
• /
• 제62권6호
• /
• pp.712-722
• /
• 2019

Objective : Although magnetic resonance guided focused ultrasound (MRgFUS) has been used as minimally invasive and effective neurosurgical treatment, it exhibits some limitations, mainly related to acoustic properties of the skull barrier. This study was undertaken to identify skull characteristics that contribute to optimal ultrasonic energy transmission for MRgFUS procedures. Methods : For ex vivo skull experiments, various acoustic fields were measured under different conditions, using five non-embalmed cadaver skulls. For clinical skull analyses, brain computed tomography data of 46 patients who underwent MRgFUS ablations (18 unilateral thalamotomy, nine unilateral pallidotomy, and 19 bilateral capsulotomy) were retrospectively reviewed. Patients' skull factors and sonication parameters were comparatively analyzed with respect to the cadaveric skulls. Results : Skull experiments identified three important factors related skull penetration of ultrasound, including skull density ratio (SDR), skull volume, and incidence angle of the acoustic rays against the skull surface. In clinical results, SDR and skull volume correlated with maximal temperature (Tmax) and energy requirement to achieve Tmax (p<0.05). In addition, considering the incidence angle determined by brain target location, less energy was required to reach Tmax in the central, rather than lateral targets particularly when compared between thalamotomy and capsulotomy (p<0.05). Conclusion : This study reconfirmed previously identified skull factors, including SDR and skull volume, for successful MRgFUS; it identified an additional factor, incidence angle of acoustic rays against the skull surface. To guarantee successful transcranial MRgFUS treatment without suffering these various skull issues, further technical improvements are required.

• Journal of Veterinary Science
• /
• 제23권5호
• /
• pp.75.1-75.7
• /
• 2022

Background: Since 2013, the number of requests for diagnosis for horses based on neurological symptoms has increased rapidly in South Korea. The affected horses have commonly exhibited symptoms of acute seasonal hindlimb ataxia. A previous study from 2015-2016 identified Setaria digitata as the causative agent. Objectives: This study is an epidemiological investigation to find out risk factors related to the rapid increase in hindlimb ataxia of horses due to aberrant parasites in South Korea. Methods: An epidemiological investigation was conducted on 155 cohabiting horses in 41 horse ranches where the disease occurred. The surrounding environment was investigated at the disease-causing horse ranches (n = 41) and 20, randomly selected, non-infected ranches. Results: Hindlimb ataxia was confirmed in nine cohabiting horses; this was presumed to be caused by ectopic parasitism. Environments that mosquitoes inhabit, such as paddy fields within 2 km and less than 0.5 km from a river, had the greatest association with disease occurrence. Conclusions: Most horse ranches in South Korea are situated in favorable environments for mosquitoes. Moreover, the number of mosquitoes in the country has increased since 2013 due to climate change. Additional research is required; however, these data show that it is necessary to establish guidelines for the use of anthelmintic agents based on local factors in South Korea and disinfection of the environment to prevent disease outbreaks.