• 제목/요약/키워드: Ultrasonographic

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앤드인 탐색 스트레칭과 퍼지 시그마 이진화를 이용한 초음파 영상에서 충수 추출 (Extraction of Appendix from Ultrasonographic Images using Ends-in Search Stretching and Fuzzy Sigma Binarization)

  • 김광백
    • 한국정보통신학회논문지
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    • 제17권6호
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    • pp.1281-1285
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    • 2013
  • 본 논문에서는 충수 영역을 추출하는 방법을 제안한다. 충수 영역을 추출하는 과정은 복부 초음파 영상에서 앤드인 탐색 스트레칭 기법, 블록 이진화, Grassfire, 팽창 연산을 이용하여 복부 근육의 최하단 근막 부분을 추출하여 제거한 후, 퍼지 시그마 이진화 기법을 적용하여 영상의 객체화 및 객체 제거를 통해 충수 영역을 추출한다. 제안된 방법을 복부 초음파 영상에 적용한 결과, 객관적이고 효율적으로 충수 영역이 추출됨을 확인할 수 있었다.

Ochratoxin-A 및 Citrinin 중독 신부전 개에서 신장엽간동맥 혈관저항지수에 대한 도플러초음파 평가 (Ultrasonographic Resistive Index of the Interlobar Renal Artery in Renal Failure Induced by Ochratoxin A and Citrinin Toxicosis in Dogs)

  • 배준우;성윤상;오태호;장광호;이근우;엄기동
    • 한국임상수의학회지
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    • 제23권4권
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    • pp.427-431
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    • 2006
  • Pulse Doppler ultrasonographic evaluation was performed to investigate the resistive index (RI) of the Interlobar renal artery in 17 dogs (32 kidneys) which were diagnosed with an acute renal failure caused by ochratoxin-A and citrinin contaminated commercial diet. RI was investigated in 7 normal beagle dogs and recovered patients. The mean of RI was resulted as $0.69{\pm}0.04$ in normal dog, however, significantly (p<0.001) increased as $0.76{\pm}0.05$ in renal failure dog. But RI had no relationship with the results of blood chemistry, urine analysis, and excretory urographic image quality. From these results, even though the results of the renal function test were within a normal reference range, it was considered that RI index is more reliable to represent a damaged renal parenchyma, and may have the potential to be a useful clinical tool in monitoring of the renal function.

개에서 실험적으로 유발시킨 급성 췌장염에 있어서 혈액화학치와 췌장의 초음파학적 변화 (Study on clinico-pathological and ultrasonographic changes for experimental induced-acute pancreatitis in dogs)

  • 윤영민;박수진;윤정희;윤화영;최희인
    • 대한수의학회지
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    • 제38권2호
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    • pp.423-435
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    • 1998
  • In acute pancreatitis group, all the dogs are showed increase of amylase and lipase after the 1st day of surgery, and amylase and lipase activity were significantly more increased than those of control group. The methemalbumin was increased significantly after the 2nd day of surgery in the acute pancreatitis group. In pancreatitis group, ultrasonographic findings included thickened duodenal wall and poorly circumscribed hyperechoic lesion of pancreatic mass after the 2nd day of surgery. And the lesion was exacerbated until the 4th day and reduced after the 6th day of surgery. To identify the lesion of pancreas, it is considered that transverse view is more useful Than sagittal view. Gross findings showed increase of pancreatic parenchymal consistency, surface nodule, and extensive pancreatic necrosis. Necrosis of peripancreatic fat tissue was also a prominent feature. The microscopic appearance of the pancreas was characterized by pancreatic acinar cell necrosis, hemorrhage, infiltration of the inflammatory cell and fat necrosis and saponification were also observed.

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Ultrasonographic assessment of transitional cell carcinoma of the urinary bladder in dogs: a perspective of tumor size change

  • Kim, Seungji;Kim, Yongbaek;Kim, Wanhee;Choi, Mincheol;Yoon, Junghee
    • 대한수의학회지
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    • 제57권3호
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    • pp.205-208
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    • 2017
  • Study purposes were to evaluate ultrasonographic characteristics of transitional cell carcinoma (TCC) and quantitate bladder tumor size in dogs. Heterogeneous mass, wall involvement, and broad-based attachment were significantly associated with TCC, but not prominently the trigone region. Mass size evaluation revealed a significant correlation between progressive disease (PD) in TCC patients with piroxicam therapy. Largest diameter of target lesion/body weight (cm/kg) ratio showed a high mean value in PD. A value > 0.3 was associated with PD with 83% sensitivity and 66% specificity. The results suggest that ultrasonography can provide evidence for diagnosing and predicting a prognosis for TCC.

Effects of Acupotomy on a Dorsal Wrist Ganglion Cyst with Ultrasonography: A Case Report with a 7-Month Follow-up

  • Kim, Jae Hoon;Lee, Jung Hee;Lee, Cho In;Lee, Yun-Kyu;Lee, Hyun-Jong;Kim, Jae Soo
    • Journal of Acupuncture Research
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    • 제37권4호
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    • pp.285-289
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    • 2020
  • Background: This study was conducted to evaluate the clinical effect of acupotomy, a newly upcoming acupuncture treatment method for a dorsal wrist ganglion cyst. Methods: A patient with a dorsal wrist ganglion cyst was treated with acupotomy under ultrasonographic guidance. The symptoms caused by the cyst and size of the cyst under ultrasonographic observation were used to evaluate the effect of the acupotomy treatment. Results: The numeric rating scale score reduced from 7 to 1.4 throughout the treatment period. The size and swelling of the cyst decreased following acupotomy treatment. Conclusion: Acupotomy had a positive clinical effect in the treatment of a dorsal wrist ganglion cyst in this case. Further studies are required for its additional retrospective application.

피하지방층과 등뼈 영역을 이용한 초음파 영상에서의 근육 영역 추출 (Extraction of Muscle Areas form Ultrasonographic Images using Subcutaneous Fat Areas and Thoracic Vertebra)

  • 김광백
    • 한국컴퓨터정보학회논문지
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    • 제17권5호
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    • pp.29-32
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    • 2012
  • 본 논문에서는 요부 영상에서 근육을 추출하는 방법을 제안한다. 제안된 방법은 요부 초음파 영상에서 피하지방층과 등뼈 영역을 각각 분류하여 피하지방층의 하단 부분과 등뼈의 상단 부분의 경계선을 개선된 4방향 윤곽선 추적 알고리즘을 적용하여 추출하고 이 두 경계선 내에 있는 영역을 요부의 근육 영역으로 추출한다. 본 연구에서 제안한 방법을 392개의 요부 초음파 영상에 적용하여 근육 영역을 추출한 결과, 제안된 방법은 94% 이상의 추출률을 보였다.

초음파 유도하 세침 흡인 생검을 이용한 경부 결핵성 림프절염의 진단 (Diagnosis of Cervical Tuberculous Lymphadenitis with Fine Needle Aspiration Biopsy Under Ultrasonographic Guides)

  • 서광욱;박정수;이종태;이광길
    • 대한두경부종양학회지
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    • 제8권2호
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    • pp.91-96
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    • 1992
  • The efficacy of the fine needle aspiration biopsy and cytological examination(FNABC) under ultrasonographic(US) guides for the diagnosis of cervical tuberculous lymphadenitis was assessed. There were one hundred and one patients whose neck masses were proven to be tuberculous lymphadenites with cytologic and/or histologic diagnosis. The physical characteristics shown by US revealed that all the cases were multiple lesions. Multiregional lesions were found in 80 cases(79.1%) and 19 cases(18.8%) were the bilateral lesion. The region V was the most prevalent site(n=69, 68.3%). US findings revealed 92 cases(90.9%) showed hypoechoic lesions and 9(9.1%) showed mixed echo patterns. There was no hyperechoic lesion (p<0.05). The sensitivity of FNABC was 77.2% and specificity was 99.0%. Diagnostic accuracy was 85.0%. There was no complication during the procedures. FNABC for the diagnosis of cervical tuberculous lymphadenitis is a safe, convinient procedure and has a high specificity. The pitfall of FNABC the low sensitivity, seemed to be compensated by US evaluations.

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개의 태아사 및 태아침지 (Fetal Death and Maceration in dog)

  • 신창록;손창호;박인철;최한선;강병규
    • 한국임상수의학회지
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    • 제14권1호
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    • pp.112-117
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    • 1997
  • 12-month-old Buldig and 3-year-old German Shepherd, treated with corticosteroids duringthe late pregnancy, were referred to the Veterinary Teaching Hospital, Chonnam National University, with chief complaints of vaginal discharge. Radiographic, ultrasonographic and surgical findings that obtained from each cases were as follows; case I: Radiographic findings were identified 2 fetuses that were normal skeleton, however, fetal viability could not be determined. Ultrasonographic findings were identified absence of fetal heartbeat and fetal movement, abnormal echogenicity of the abdominal visera, and echogenic materials remaining within the fetal fluid. After hysterotomy, macroscopic findings of uterus were liquefied materials remaining within the uterine lumen. Fetuses were excessively autolysis (falling off the hair, depression of the eye, and necrosis of the abdormal visera and skin). case II: Radiographic findings were identified irregular fetal structures and fetal movement, loss of recognizable fetal anatomy, dislocation of fetal veterbrae and echogenic materials remaining within the uterine lumen. After ovariohysterectomy, macroscopic finding of uterus and fetus were thickened uterine wall, yellowish-brown colored administration of corticosteroids during gestation should be contraindicated because fetal death is inducced. Ultrasonography has an advantage over radiography in that it permits evaluation of fetal viability.

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에비안스-함베르크 스트레칭 방법이 고관절의 능동 가동범위와 우모각에 미치는 영향 (The Effects of Evjenth-Hamberg Stretching on Active Range of Motion of the Hip Joint and the Pennation Angle)

  • 천승철;장기연
    • 한국전문물리치료학회지
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    • 제17권2호
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    • pp.43-50
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    • 2010
  • The purpose of this study was to investigate the effects of Evjenth-Hamberg stretching on the active range of motion (ROM) of the hip joint and the pennation angle of the semitendinosus muscle. Eighty healthy adults participated in this study. The active ROM of the hip joint was measured by a goniometer and the pennation angle of the semitendinosus muscle was measured by ultrasonographic imaging (USI). Both ROM and pennation angle were recorded before and after the static stretching and the Evjenth-Hamberg stretching, respectively. Data were analyzed using paired t-lest and independent t-test at p<.05. The results were as follows: 1) The active ROM of the hip joint increased significantly after both stretching interventions compared with the baseline (p<.001). However, the active ROM of the hip joint increased significantly in Evjenth-Hamberg stretching compared with static stretching. 2) The pennation angle decreased significantly after both stretching interventions compared with the baseline (p<.001). However, the pennation angle decreased significantly in Evjenth-Hamberg stretching compared with static stretching. 3) Reliability data showed that there was a high consistency in USl measurements (ICC=.978). Our findings suggest that the Evjenth-Hamberg stretching was more effective than static stretching in increasing the active ROM of the hip joint and decreasing the pennation angle of the semitendinosus muscle.

한우에서 생식기질환의 치료 및 조기임신진단을 위한 초음파영상진단 (Ultrasonographic Diagnosis for the Treatment of Genital Disease and Early Pregnancy Diagnosis in Korean Native Cattle)

  • 황광남;김명철;변홍섭;박명호;이경광;한용만;신상태
    • 한국가축번식학회지
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    • 제21권1호
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    • pp.31-37
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    • 1997
  • Ultrasonographic diagnosis of genital disease and early pregnancy diagnosis was performed in Korean native cattle. The size of ovarian follicle in preovulation, luteal stage and follicular cyst was 18.9, 9.2 and 27.6 mm, respectively, and the thickness of follicular wall was 2.3, 1.8 and 2.8 mm, respectively. The size of corpus luteums in formation stage, activity stage, regression stage, cystic corpora lutea and luteal cyst was 6.2, 11.3, 8.6, 26.7 and 25.9 mm, respectively. The thickness of luteal wall in cystic corpora lutea and luteal cyst was 8.4 and 4.9 mm, respectively. The size of embryo or fetus on day 25, 27, 30, 35, 40, 45 and 50 was 0.8, 0.9, 1.3, 1.5, 2.2, 2.8 and 3.8 cm, respectively. The size of amniotic vesicle on day 25, 27 and 30 was 1.2, 2.1 and 3,0 cm, respectively. The diameter of pregnant uterus on day 25 and 27 was 7.0 and 7.8 cm, respectively. It was concluded that the ultrasonographci values determined in this study can be used as references for the treatment of genital disease and early pregnancy diagnosis in Korean native cattle.

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