• Journal of Veterinary Science
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• 제21권3호
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• pp.21.1-21.14
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• 2020

Background: Physical exercise is known to cause significant joint changes. Thus, monitoring joint behavior of athletic horses is essential in early disorders recognition, allowing the proper management. Objectives: The aims of this study were to determine the morphological patterns, physical examination characteristics and ultrasound findings of show jumping horses in training and to establish a score-based examination model for physical and ultrasound follow-ups of metacarpophalangeal joint changes in these animals. Methods: A total of 52 metacarpophalangeal joints from 26 horses who were initially in the taming stage were evaluated, and the horses' athletic progression was monitored. The horses were evaluated by a physical examination and by B-mode and Doppler-mode ultrasound examinations, starting at time zero (T0), which occurred concomitantly with the beginning of training, and every 3 months thereafter for a follow-up period of 18 months. Results: The standardized examination model revealed an increase in the maximum joint flexion angles and higher scores on the physical and ultrasound examinations after scoring was performed by predefined assessment tools, especially between 3 and 6 months of evaluation, which was immediately after the horses started more intense training. The lameness score and the ultrasound examination score were slightly higher at the end of the study. Conclusions: The observed results were probably caused by the implementation of a training regimen and joint adaptation to physical conditioning. The joints most likely undergo a pre-osteoarthritic period due to work overload, which can manifest in a consistent or adaptive manner, as observed during this study. Thus, continuous monitoring of young athlete horses by physical and ultrasound examinations that can be scored is essential.

• 한국방사선학회논문지
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• 제15권4호
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• pp.481-490
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• 2021

한국에 초음파사 자격제도는 없다. 그러나 「의료기사 등에 관한 법률」에 방사선사가 초음파 진단기를 취급할 수 있도록 규정하고 있다. 따라서 방사선사가 초음파검사를 시행하는데 허용되는 업무 범위와 한계에 대하여 논란이 있다. 이에 한국 보건복지부의 유권해석과 행정심판 재결, 법원의 판결을 분석해 보았다. 그 결과 유권해석에서는 방사선사가 초음파영상검사를 수행할 때 의사가 방사선사의 촬영영상을 동시에 보면서 실시간으로 진단과 구체적인 지도가 이루어질 수 있다면, 물리적으로 동일한 공간에 있어야 한다는 의미로서 입회 또는 기타 의료기술을 활용한 "의사의 실시간 지도하에 방사선사의 초음파검사 및 촬영"은 가능하며, 이 경우 의사의 지도는 방사선사와 1:1로 이루어져야만 한다'고 풀이하고 있다. 행정심판에서는 초음파 관련 장비의 취급은 방사선사의 업무라고 재결하였다. 법원에서는 의사의 구체적인 지휘·감독 없이 방사선사가 단독으로 초음파검사를 시행하고, 방사선사가 초음파검사에 대하여 의학적 판단을 하는 것은 위법이라고 판결하였다. 그러나 미국, 캐나다, 호주, 일본 등에서는 초음파사(sonographer, 超音波検査士)가 의사의 처방에 따라 독자적으로 환자에 대한 초음파검사를 하고, 그 결과에 대한 예비소견을 작성하여 의사에게 전달하고 있다. 따라서 한국에서도 미국 등과 같이 초음파검사를 시행하는 방사선사가 실시간 지도를 받지 않고 의사의 처방에 따라 초음파검사를 수행할 수 있도록 제도적 개선이 요구된다.

• 한국임상수의학회지
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• 제21권2호
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• pp.181-183
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• 2004

Hepatic mass was aspirated under the guidance with ultrasound in 9-year old female maltese with signs of anorexia, hematochezia, vomiting, depression, and abdominal distension. Radiographic and abdominal ultrasonographic examinations were performed, which revealed enlarged tubular shaped uterine mass and solitary, small round hyperechoic hepatic mass dorsal to gall bladder as an incidental finding. Ultrasound-guided fine needle aspiration was completed, but histologic confirmation should be made for definitive diagnosis by tissue core or wedge biopsy.

• International Journal of Vascular Biomedical Engineering
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• 제1권1호
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• pp.3-12
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• 2003

Ultrasonic pulsed Doppler velocimetry has become a standard international method of classifying carotid disease. Because the measured angle adjusted velocity increases as the Doppler angle increases, examinations should be performed at a convenient standard Doppler examination angle. An angle of 60 degrees is achievable throughout most examinations. Multiple Doppler viewing angles allow the acquisition of velocity vectors during the cardiac cycle, revealing the complex velocity patterns. Ultrasonic velocimetry (whether Doppler or time domain) is based on changes in the phase of the ultrasound echo. Other examinations can be done based on the echo phase. Slow motions of organs such as the brain can be used to monitor changes in edema. Measurements of tissue strain due to the pulsatile filling of the arterioles. This plethysmographic imaging method can display differences in tissue perfusion because of different tissue types and changes in autonomic activity.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제20권3호
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• pp.175-202
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• 2016

Ultrasound imaging is a widely used tool for visualizing human body's internal organs and quantifying clinical parameters. Due to its advantages such as safety, non-invasiveness, portability, low cost and real-time 2D/3D imaging, diagnostic ultrasound industry has steadily grown. Since the technology advancements such as digital beam-forming, Doppler ultrasound, real-time 3D imaging and automated diagnosis techniques, there are still a lot of demands for image quality improvement, faster and accurate imaging, 3D color Doppler imaging and advanced functional imaging modes. In order to satisfy those demands, mathematics should be used properly and effectively in ultrasound imaging. Mathematics has been used commonly as mathematical modelling, numerical solutions and visualization, combined with science and engineering. In this article, we describe a brief history of ultrasound imaging, its basic principle, its applications in obstetrics/gynecology, cardiology and radiology, domestic-industrial products, contributions of mathematics and challenging issues in ultrasound imaging.

• 대한정형외과 초음파학회지
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• 제1권1호
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• pp.50-57
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• 2008

구조물에 대한 체계적 이해인 해부학과 그 역할에 대한 기능적 확인이라고 할 수 있는 신체 검진법은 슬관절을 진료하는 임상의로서 갖추어야 할 가장 기본적인 소양이라고 할 수 있다. 본문에서는 슬관절의 골성 구조, 반월상 연골, 전후방 십자 인대, 내외측 측부 인대, 근육, 내측 및 외측 삼층 구조 개념, 전후방 해부학, 슬관절 주위 점액낭에 대한 해부학 및 반월상 연골, 내외측 측부 인대, 전방 십자 인대, 후방 십자 인대 및 후측방 구조물에 대한 신체 검사에 대해 기술하였다. 해부학 및 신체 검진법에 대한 개념적이고 체계적인 이해는 슬관절을 치료하는 임상의에게 나침반과 등대와 같은 역할을 할 것이다.

• Archives of Plastic Surgery
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• 제35권1호
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• pp.62-66
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• 2008

Purpose: Axillary osmidrosis is a distressing disorder characterized by unpleasant odor from axillary area and it is mainly associated with apocrine glands but also associated with eccrine glands. For surgical treatment of osmidrosis, recently ultrasound assisted liposuction(UAL) had been performed for many patients. According to the recent studies about ultrasound assisted liposuction for the treatment of osmidrosis, histologic studies about apocrine gland had been applied for 35 cases, but there were rare mention about eccrine gland and the relationship between two glands. The purpose of this article is to evaluate the effect of ultrasound assisted liposuction for the treatment of axillary osmidrosis on apocrine and eccrine glands. Methods: From January 2004 to January 2007, 35 patients underwent ultrasound assisted liposuction for the treatment of osmidrosis and 5 patients underwent histologic studies. Histologic examinations were performed before and after ultrasound assisted liposuction and each biopsy was performed in central axillary area. The volume ratio of both glands, presence of degeneration were examined. And in aspirates, distribution and density of both glands and their morphological changes were examined. Results: Preoperative biopsy results showed average volume ratio of apocrine glands to eccrine glands was 65 : 35. According to the postoperative biopsy results, the volume of apocrine glands in dermis were significantly reduced and glands were degenerated, but the volume of eccrine glands were slightly reduced and glands were mildly damaged. And the average volume ratio of two glands was 20 : 80. According to biopsy results of aspirates, the volume ratio of two glands was 85 : 15 and apocrine glands had significantly greater proportion. Conclusion: By comparison of each biopsy result, apocrine glands were more significantly reduced and degenerated than eccrine glands in all 5 cases. However, further studies with large sample sizes and close examinations are required.

• 한국방사선학회논문지
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• 제16권5호
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• pp.639-647
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• 2022

본 연구는 영남지역에서 초음파검사를 담당하고 있는 방사선사를 대상으로 직무특성을 분석하였다. 연구에 사용한 측정도구는 설문지로 2021년 08월01일부터 11월30일까지 영남지역에 소재하는 의료기관에서 초음파검사를 담당하는 방사선사를 대상으로 하였다. 코로나19 상황을 감안하여 비대면 방식으로 e-mail, SNS 등을 이용하여 연구에 적합한 158부를 SPSS/PC Ver 18.0 프로그램을 이용하여 분석하였다. 연구대상자의 일반적 특성과 초음파검사자의 직무특성을 기술통계, 신뢰도분석, t-test, 분산분석, 상관관계, 회귀분석으로 실시하였다. 영남지역에서 초음파검사를 담당하는 방사선사의 직무특성을 전체 직무만족수준으로 분석한 결과 직무만족수준은 3.24 ± 0.61로 나타났다. 평균 3.0점 보다 높은 수준으로, 직무특성요인이 직무만족에 미치는 영향에서는 전문적 지위, 자존감, 신뢰관계 형성이 높게 나타났다. 그러나 보상과 업무의 적절성에서는 불만족하는 요인으로 파악되었다. 그러므로 영남지역에서 초음파검사를 담당하는 방사선사의 직무특성과 만족수준을 향상시키기 위해서는 의료기관의 적절한 업무환경개선과 초음파검사를 담당하는 방사선사의 지속적인 전문성확보를 위한 노력에 최선을 다하여야 할 것이다.

• Parasites, Hosts and Diseases
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• 제52권5호
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• pp.545-549
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• 2014

Sparganosis is an infection with a parasitic tapeworm larva that occurs by eating infected foods or drinking contaminated water. The larvae can migrate to a tissue or muscle in the chest, abdominal wall, extremities, eyes, brain, urinary tract, pleura, pericardium, spinal canal, or scrotum. Herein, we report a 5-month old infant with scrotal sparganosis who was initially suspected to have a scrotal inflammatory mass with a history of applying raw frog meat into the umbilicus. Preoperative ultrasound examinations and computed tomography (CT) scanning misdiagnosed the mass as a scrotal teratoma. The scrotal mass was surgically removed, and the histopathology proved it to be scrotal sparganosis. This case displays the youngest patient ever reported with scrotal sparganosis, and the first description of CT characteristics of scrotal sparganosis. A detailed medical history is necessary for patients with scrotal masses suspected of sparganosis. In addition, ultrasound and CT examinations are helpful to rule out other causes of a scrotal mass.

• 한국임상수의학회지
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• 제41권2호
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• pp.79-87
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• 2024

The tarsus in dogs has a complex structure that makes its evaluation relatively challenging. Because an accurate diagnosis of the tarsus is difficult through basic examinations alone, imaging tests are essential. Previous studies have explored the anatomical and radiological features of the canine tarsus using several imaging modalities. However, the imaging utility of the tarsus across different modalities has not been thoroughly evaluated. This study aimed to visualize the tarsal structures using magnetic resonance imaging (MRI) and ultrasonography, compare their utility, and propose suitable imaging modalities and conditions for evaluating specific tarsal structures. Magnetic resonance imaging and ultrasound scans of the tarsus of four healthy dogs were performed, and two observers rated the utility of each image on a five-point scale. Although MRI is more beneficial for assessing the tarsal structures than ultrasound, ultrasound also appears clinically useful for evaluating the cranial tibialis muscle, deep digital flexor tendon, subcutaneous fat, joint space, and superficial digital flexor tendon. In addition, each structure of interest can be evaluated for optimal visibility using specific ultrasound sections, MRI sequences, and planes. In veterinary clinical practice, an initial assessment using ultrasound imaging with optimal visibility is required and if further evaluation is necessary, MRI examinations with optimal MRI sequences and planes can be performed.