• 한국가축번식학회지
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• 제22권1호
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• pp.67-72
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• 1998

Nowadays many kinds of foreign breed horse and Korean native Cheju horse are raised in Korea. Horse has complicated structure and function to maintain normal health, and to overcome severe condition during gallop at full speed. Sometimes the disease take a bad turn becuase of difficulty of correct diagnosis for horse disease. In recent times, horse farm for fattening and reproduction is gradually increasing. However, thoracic disease and abdominal disease are frequently occuring by defect in raising management. But the diagnosis of these kinds of disease is difficult by former diagnostic method. Ultrasonographic diagnostic method is a method to slove the problem. In abroad, nowadays ultrasonography has been reported for circulatory organs and abdomonal organs in horse, cattle, sheep, and dog, and the importance of ultrasonographic diagnosis is recognized in veterinary clinical medicine. In the country, ultrasonography of Korean native goat, cattle and dog was recently reported, but there was no report for the ultrasonography of horse. So, ultrasonogram for the thyroid glands, jugular vein and carotid artery was evaluated in Cheju horse and Thoroughbred horse. Thyroid gland, jugular vein and carotid artery were determined on both sides of neck. The length of right thyroid lobe at the Thoroughbred horse, Thoroughbred foul, Cheju horse and Cheju foul were 54.8, 45.1, 46.1 and 42.2 mm, respectively. The width of right thyroid lobe at the Thoroughbred horse, Thoroughbred foul, Cheju horse and Cheju foul were 18.1, 14.3, 14.6 and 14.2 mm, respectively. The height of right thyroid lobe at the Thoroughbred horse, Thoroughbred foul, Cheju horse and Cheju foul were 27.3, 25.6, 26.2 and 25.5 mm, respectively. Similar ultrasonographic measurements were obtained for the left thyroid gland. The internal diameter of left jugular vein at the Thoroughbred horse, Thoroughbred foul, Cheju horse and Cheju foul were 10.6, 9.7, 10.5 and 9.2 mm, respectively. Similar ultrasonographic measurements were obtained for the right jugular vein. The internal diameter of right carotid artery at the Thoroughbred horse, Thoroughbred foul, Cheju horse and Cheju foul were 9.5, 8.8, 9.1 and 8.5 mm, respectively. Similar ultrasonographic measurements were obtained for the left carotid artery. It is concluded that the ultrasonographic values of this study provides references for the diagnosis of morphologic changes in the thyroid gland, jugular vein and carotid artery in Korean native Cheju horse and Thoroughbred horse.

• 한국멀티미디어학회논문지
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• 제11권9호
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• pp.1296-1301
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• 2008

초음파 영상은 초음파 펄스를 이용하여 반사파를 수신하여 진단에 필요한 영상을 구성하는데 신호가 약해 질 경우 잡음이 발생하며 미세한 명암도 차이 등에 의해 분석 과정에서 육안으로 인지하고 진단하는데 어려움이 있다. 특히 근골격계 검사를 위한 초음파 영상에서 근육 영역의 진단에 어려움을 준다. 따라서 본 논문에서는 초음파 영상에서 영상 처리 기법을 이용하여 근육 영역을 검출할 수 있는 방법을 제안한다. 초음파 영상에서의 근육 영역 검출은 피하지방층과 기타 영역 그리고 근육을 둘러싸고 있는 근막 후보 영역을 검출한 후, 위치 정보와 형태학적 특징을 이용하여 최종적으로 근막 내부 영역인 근육 영역을 검출한다. 제안된 방법의 근막 후보 영역의 검출 과정은 개선된 히스토그램 스트레칭과 Multiple 연산으로 대비차를 향상시키고 반복 이진화 기법을 적용한 후, 잡음에 의해 손실되거나 끊어진 근막 영역을 거리 및 방향 분석을 이용하여 연결한 후에 근막 후보 영역을 검출한다. 검출된 근막 후보 영역의 형태학적 특징과 위치정보를 이용하여 피하지방층과 기타 영역을 분류한 후, 최종적으로 근육 영역을 검출한다. 실제 초음파 영상을 대상으로 제안된 근육 검출 방법을 적용하여 검출된 근육 영역과 전문의가 분석한 근육 영역을 비교한 결과, 제안된 근육 검출 방법이 전문의가 육안으로 분석한 근육 영역과 근접하게 검출되어 본 논문에서 제안한 근육 영역 검출 방법이 효율적임을 확인하였다.

• 한국임상수의학회지
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• 제22권3호
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• pp.233-238
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• 2005

This study was undertaken to determine the normal serial ultrasonographic appearance of the postpartum uterine involution. Postpartum changes in uterine shape, architecture, echogenicity and diameter were monitored by ultrasonography in 10 Shih-tzu bitches. Serial ultrasonographic examination was done daily during the first week, 3 days interval from 8 to 30 days, and weekly from 31 to 100 days postpartum. All 10 postpartum bitches had normal involution by gross finding, vaginal discharges, and by ultrasonographic findings, uterine shape and echogenicity. The uterine diameter in the placental sites was decreased from $23.56{\pm}1.45$ mm at 1 day to $14.08{\pm}1.55$ mm at 7 day, and in the interplacental sites was decreased from $14.64{\pm}1.28$mm at 1day to $9.61{\pm}1.46$mm at 7 day postpartum. At 65 days postpartum the uterine diameter was 5-6 mm both placental and interplacental sites, and the uterine horns were uniform hypoechic, tubular structures without enlargement. Therefore, complete involution of the uterus occured 65 days. It was concluded that normal postpartum uterine involution in Shih-tzu bitches appeared to be completed 65 days postpartum by gross findings such as vaginal discharges, and ultrasonographic findings. And ultrasonographic characteristics of the postpartum uterine involution were described. Therefore, these result suggest that ultrasonographic assessment is a reliable method for diagnosing the subinvolution of placental sites and uterine dysfunction, such as pyometra in the bitch.

• 대한통합의학회지
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• 제5권1호
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• pp.75-83
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• 2017

Purpose : The parameters used in architectural analysis are muscle thickness, fascicle length, pennation angle, etc. Pennation angle is an important muscle characteristic that plays a significant role in determining a fascicle's force contribution to movement. Ultrasonography has been widely used to obtain the image for measurement of a pennation angle since it is non-invasive and real-time. However, manual assessment in ultrasonographic images is time-consuming and subjective, making it difficult for using in muscle function analysis. Thus, in this study, I proposed an automatic method to extract the pennation angle from the ultrasonographic images of gastrocnemius muscle. Method : The ultrasonographic image obtained from 10 healthy participants's gastrocnemius muscle using for developed automatic measuring program. Automatic measuring program algorithm consists with preprocessing, line detection, line classification, and angle calculation. The resulting image was then used to detect the fascicles and aponeuroses for calculating the pennation angle with the consideration of their distribution in ultrasonographic image. Result : The proposed automatic measurement program showed the stable repeatability of pennation angle calculation. Conclusion : This study demonstrated that the proposed method was able to automatically measure the pennation angle of gastrocnemius, which made it possible to easily and reliably investigate pennation angle more.

• 한국임상수의학회지
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• 제23권3호
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• pp.258-262
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• 2006

This study was performed to evaluate the usefulness of gray-scale and power Doppler ultrasonography, and to compare with radiography for detection of the repairing in experimentally induced bone defects in dogs. In 4 adult beagle dogs bilateral bone defects were created in 8 canine femurs as sized as 5 mm diameter. Mean detection time of the ultrasonographic endosteal callus formations(mean $14.25{\pm}2.31$ days) was significantly shorter than that of the radiographic opacity chanees(mean $23.50{\pm}2.27$ days) in the defected region. Mean time of the neovascularizd flow signal(mean $6.00{\pm}3.59$ days) from the power Doppler ultrasonographic examination was significantly shorter than that of gray-scale ultrasonographic findings. With these results, gray-scale ultransonography and power Doppler ultrasonography can be used for an early detection modality for bone healing.

• 대한수의학회지
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• 제38권3호
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• pp.629-641
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• 1998

This study was performed to evaluate the ultrasonographic findings of ethylene glycol intoxication. Ten healthy mongrel dogs which was administered with ethylene glycol, were evaluated in terms of clinical findings, hematological findings, blood chemistry, and ultrasonographic and histopathological findings of kidney. The results obtained through these experiment could be summarized as follows : 1. Typical clinical symptoms such as vomiting, initial apprehension, depression, thirst, dehydration, tremor, anorexia, hematuria, anuria, weakness, weight loss, flaccid paralysis, tachypnea, coma, and death, were revealed after administration of ethylene glycol. 2. Special symptom of bloody diarrhea was occurred by administration of ethylene glycol. 3. After administration of ethylene glycol, PCV was decreased continuously(p<0.01), and total leukocyte count was increased gradually, revealed the highest value at day 5 and thereafter decreased. 4. Remarkable changes of ultrasonographic findings such as high echo intensity of renal parenchyma and emergence of halo in corticomedullary junction, were revealed after administration of ethylene glycol. Early(hour 8) enlargement and late(day 3) enlargement were observed in kidney(p<0.01). Especially, late enlargement was observed concurrently with the elevation of BUN and creatinine values. 5. Calcium oxalate crystals, metabolites of ethylene glycol, were observed in histopathologic findings of kidney. Also, degeneration and necrotic exfoliation of epithelial cells were recognized in addtion to swelling of renal tubules.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제37권
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• pp.24.1-24.5
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• 2015

Ultrasonographic examination is widely used for screening of abnormal findings on prenatal screening. Cleft lip with or without cleft palate of the fetus can also be screened by using ultrasonography. Presence of abnormal findings of the fetal lip or palate can be detected by the imaging professionals. However, such findings may not be familiar to oral and maxillofacial surgeons. Oral and maxillofacial surgeons can use ultrasonographic imaging of fetal cleft lip with or without cleft palate to provide information regarding treatment protocols and outcomes to the parent. Therefore, surgeons should also be able to identify the abnormal details from the images, in order to setup proper treatment planning after the birth of the fetus. We report two cases of cleft lip with or without cleft palate that the official readings of prenatal ultrasonography were inconsistent with the actual facial structure identified after birth. Also, critical and practical points in fetal ultrasonographic diagnosis are to be discussed.

• 한국정보통신학회논문지
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• 제16권11호
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• pp.2382-2387
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• 2012

본 논문에서는 충수염 영상 분석에 필요한 두께, 염증의 변화량 등의 자료를 객관적으로 측정할 수 있도록 하기 위해 복부 초음파 영상에서 충수염을 추출하고 분석하는 방법을 제안한다. 초음파 영상은 동일한 환경에서 영상을 촬영할 수 없기 때문에 객관적인 분석을 위해 초음파 영상을 표준화 한다. 본 논문에서 사용된 영상은 표준화된 초음파 영상을 대상으로 하였으며, 충수염 추출 과정은 사람마다 초음파 영상 결과가 다르게 나타나므로 최하단 근막을 추출한 뒤, 최하단 근막을 기준으로 충수염을 추출한다. 제안된 방법을 초음파 영상을 대상으로 실험한 결과, 제안된 충수염 추출 및 분석 방법이 측정자가 직접 충수염을 추출하고 분석하는 방법보다 효과적인 것을 확인할 수 있었다.

• Journal of Yeungnam Medical Science
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• 제9권2호
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• pp.269-274
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• 1992

본 연구에서는 1992년 3월부터 8월까지 유방 병소로 본원에 내원하여 유방암으로 확진된 12명을 대상으로 초음파 소견을 분석하여 다음과 같은 결론을 얻었다. 즉 종괴경계의 불규칙적인 분엽성(12/12), 종괴 내부의 저 echo(11/12), 종괴음영의 비균질성(11/12), 후방음영의 감소(7/12), 변연 echo의 증강(9/12), 표재층의 분열(11/12), 종괴의 전후경에 대한 횡경의 비율(T/AP<1.4 : 9/12), 소석회화(2/12), 피부의 비후(2/12) 등의 소견들이 유방암을 감별 진단하는데 도움을 주지만, 이들 소견들은 반드시 유방암에서만 관찰되는 소견들은 아니고, 유방암외의 다른 양성병변들에서도 그 빈도는 낮지만 관찰될 수 있는 소견들로서, 유방 초음파검사상의 이들 소견만으로 유방암을 정확히 감별진단하기는 힘들며, 보다 정확한 진단을 위해서는 X-선 유방촬영법같은 다른 영상진단법과의 상호보완을 통한 종합적인 검사가 필요할 것이다.

• 대한정형외과 초음파학회지
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• 제1권1호
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• pp.64-72
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• 2008

주관절, 완관절 주변의 압박성 신경병증은 일상생활의 불편을 초래하는 상지에서의 흔한 신경병증의 하나로 이에 대한 초음파 검사 소견을 바르게 해석하는 데는 정상적인 신경의 구조와 압박성 신경병증의 병리적 변화를 이해하는 것이 중요하다. 압박성 신경병증에서는 특징적인 초음파 소견을 보이는데 압박부위의 신경은 눌려서 편평한 모양으로 나타나고 근위부에서는 고신호강도의 부종성 변화와 신경속 양상의 소실을 보인다. 기본적인 횡주사 및 종주사 영상 외에 관절이나 근육을 동적으로 움직이면서 시행한 초음파 검사는 척골신경이 주관절 굴곡시 삼두박건 내측두와 함께 내상과위로 아탈구 되는 탄발성 삼두박근 증후군이나 능동적 회내근의 수축시 신경압박이 일어나는 원형 회내근 증후군 등에서 신경의 아탈구나 압박소견을 보여준다. 수근관 증후군이나 주관 증후군 등에서는 신경 단면적의 정량적인 계측이나 압박비의 평가가 진단에 도움이 된다. 임상적 검사 및 전기생리적 검사와 병행하여 사용할 경우 초음파 영상은 상지에서의 압박성 신경병증을 진단하는데 있어 매우 유용한 검사방법의 하나이다.