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RISS 인기검색어
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- 저자 : 이범하 ( Boem Ha Yi ) (검색결과 4 건)
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김태희 ( Tae Hee Kim ),이해혁 ( Hae Hyeong Lee ),정수호 ( Soo Ho Chung ),이범하 ( Boem Ha Yi ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.6
Angular pregnancy is rare, in which the embryo in the lateral angle of uterine cavity and located medial to the utero-tubal junction. Angular pregnancy is differentiated from interstitial pregnancy. There is no report about term angular pregnancy in Republic of Korea, a few reports in other countries. Angular pregnancy has different clinical characteristics according to the trimester. We diagnosed angular pregnancy by ultrasonography and computed tomography (CT). The CT is a useful diagnostic method. We report a case of term angular pregnancy with placenta accreta and review the diagnostic process and complications.
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삼차원 초음파 검사의 영상 왜곡: 거리에 따른 왜곡도 비교
유은정(Yoo eun jeong),유병헌(Yu byung heon),이범하(Yi boem ha) 대한초음파의료영상학회 2014 대한초음파의료영상학회지 Vol.5 No.1
목적 : 초음파 검사 시 삼차원 탐촉자를 이용한 영상획득이 증가하고 있는데 삼차원 영상을 재현함에 있어 민감성(sensitivity)을 알아보고 구현된 삼차원 영상에서 거리에 따른 왜곡의 정도를 실험을 통하여 알아보고자 한다. 대상 및 방법 : 두 가지 초음파 기기의 삼차원 탐촉자를 이용하여 다양한 재질과 두께의 phantom을 가지고 3차원 탐촉자를 이용하여 구현된 3차원 영상에서 구분되는 최소 두께를 알아보았다. 그리고 영상의 왜곡의 정도는 탐촉자와 phantom간 거리와 scan방향에 따라 어떤 차이가 있는지 조사하였다. 결과 : phantom의 두께를 0.7mm, 1.4mm, 2.5mm, 3.0mm로 달리하여 탐촉자와 phantom간 거리가 1.5cm일 때와 5cm일 때 영상을 획득한 결과 거리가 가까울 때는 1mm 이상의 두께는 외형(contour)이 잘 묘사되었고 거리가 5cm으로 멀어졌을 때는 2mm가 넘어야 외형(contour)이 잘 묘사되었다. 탐촉자와 phantom간의 거리가 1.5cm일 때 왜곡의 정도는 a사 1.48, b사 1.37 였고 3cm일 때는 a사 1.46, b사 1.31, 5cm일 때는 a사 1.34, b사 1.29로 왜곡의 비율이 거리에 따라 적어짐을 알 수 있었다. 또한 같은 phantom이라 하더라도 탐촉자의 방향에 따라 종축방향 scan한 영상과 횡축방향 scan영상이 왜곡되는 정도가 다르게 나타났다. 결론 : 삼차원 탐촉자를 이용한 영상검사는 매우 작고 표재성인 병변을 구별해 낼 수 있는 민감한 검사방법이나 탐촉자와 검사 대상과의 거리, 방향에 따른 왜곡이 동반될 수 있다. 따라서 이러한 특성을 파악하여 실제 영상검사에서 scan방향을 다각화 하거나 거리를 조절함으로써 좀 더 정확한 진단을 할 수 있을 것으로 생각된다. Purpose: Image acquisition using a 3D transducer recently is getting more frequently in sonography. We would like to evaluate the sensitivity of 3D image and examine the distortion with two different ultrasound systems through phantom study. Materials and Methods: We measured the minimum thickness which is capable of being detected by 3D transducer with multiple phantom, and we calculated the distortion rate of the uptaken image according to the distance from transducer and direction of scanning. Results: With 0.7mm, 1.4mm, 2.5mm, 3.0mm-thick-phantoms, ultrasound exams from 1.5cm distance and 5cm distance were done. From the near distance, 1.4mm-thick- phantom was visualized. Scanning 5cm apart from in the phantoms showed good discrimination of 2.5mm phantoms. The distortion rate of A and B ultrasound machines from 1.5cm distance were 1.48 and 1.37 respectively, the distortion rate at 3cm, 5cm of the two machines were as follows, at 3cm us(A):1.46, us(B):1.31, at 5cm us(A) 1.34, us(B) 1.29, and decreased when the distance increased. Scan direction also affect the distortion rate of the images. Conclusion: Acquiring ultrasound image using a 3D transducer is a sensitive method to detect lesion which is tiny and superficial but it could bring some distortions on imaging, caused by the distance from transducer and direction of scanning. An examiner should consider those characteristics in order to make an accurate diagnosis.
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김태희 ( Tae Hee Kim ),이해혁 ( Hae Hyeog Lee ),정수호 ( Soo Ho Chung ),이범하 ( Boem Ha Yi ),곽정자 ( Jeong Ja Kwak ),남해선 ( Hae Seon Nam ),차상헌 ( Sang Heon Cha ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.8
Sparganosis is a parasitic infection caused by the plerocercoid larvae of diphyllobothroid tapeworms belonging to the genus Spirometra, as first described by Manson in 1882. The infection is transmitted by ingestion of contaminated water, frogs, and snakes, and contact between a second intermediate host and an open wound or mucus membranes. Humans are accidental hosts in the life cycle, but dogs, cats, and other mammals are definitive hosts. Once a human becomes infected, the plerocercoid larvae migrate to a subcutaneous location, where they typically develop into a painful nodule. We misdiagnosed vulva sparganosis as a Bartholin`s gland abscess. The patient was a green consumer, so she may have been infected by consuming health foods. Sparganosis should be considered as a cause of soft tissue masses especially among patients who have ingested health foods.
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이범하,김희경 순천향의학연구소 2008 Journal of Soonchunhyang Medical Science Vol.14 No.1
Primary neuroendocrine carcinoma of the breast is one of the rare breast tumors and mostly occurs in 6th or 7th decades. We are going to report radiologic findings of two recently diagnosed promary neuroendocrine carcinoma patients including mammography, ultrasound, breast MRI, and PET-CT scan with histologic findings.
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