• 대한수의학회지
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• 제61권2호
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• pp.17.1-17.4
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• 2021

A seven-year-old, castrated male, Korean domestic shorthair cat was referred because of a kidney abnormality. Radiography revealed left renal agenesis and right kidney enlargement. Ultrasonography and computed tomography (CT) showed amorphous calcified materials in a cyst-like lesion of the right kidney. In the excretory phase of the CT images, the lesion was opacified with contrast materials, indicating communication with the collecting system. Based on these findings, the cat was diagnosed with a calyceal diverticulum. A calyceal diverticulum may cause various clinical symptoms related to the urinary system. The excretory phase of CT is useful for diagnosing a calyceal diverticulum.

• 대한정형외과 초음파학회지
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• 제1권2호
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• pp.122-127
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• 2008

초음파 검사는 다양한 견관절 질환을 검사하는 강력하고 유용한 방법이다. 최근 들어 고해상도 변환기의 사용과 술기의 발전으로 회전근 개 질환을 진단하는 정확성이 향상되고 있다. 하지만, 시술자의 숙련도에 따라 다양한 결과를 나타내는 단점이 있어 주의를 요한다. 본 강좌에서는 회전근 개 질환의 초음파 소견을 자기 공명 영상, 관절경 소견과 비교하여 초음파 영상의 해석에 도움을 주고자 하였다.

• 대한후두음성언어의학회지
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• 제29권1호
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• pp.19-23
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• 2018

Ultrasonography has increasingly moved from being a modality confined to the radiology department to an active diagnostic and therapeutic aid available to the head and neck at the point of patient care. However, the application of ultrasonography to the laryngeal disorder is very rare due to progressive age-related ossification of laryngeal cartilage and the presence of air in the lumen, which contribute to difficult conditions for transmission of the ultrasonic waves. The observation about the movements of larynx or surrounding structures is important to understand the physiology of phonation or swallowing and to diagnose the disease. Ultrasonography is a noninvasive and safe imaging technique that can be used to investigate the anatomic structures of the head and neck. Recently, the development of high-frequency ultrasonography makes it possible to apply the ultrasound in the evaluation of larynx.

• Asian Pacific Journal of Cancer Prevention
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• 제13권5호
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• pp.2081-2085
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• 2012

Background: To investigate the value of ultrasound elastography (UE) in the differentiation between benign and malignant enlarged cervical lymph nodes (LNs). Methods: B-mode ultrasound, power Doppler imaging and UE were examined to determine LN characteristics. Two kinds of methods, 4 scores of elastographic classification and a strain ratio (SR) were used to evaluate the ultrasound elastograms. Results: The cutoff point of SR had high utility in differential diagnosis of benign and malignant of cervical lymph nodes, with good sensitivity, specificity and accuracy. Conclusion: UE is an important aid in differential diagnosis of benign and malignant cervical LNs.

• Safety and Health at Work
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• 제11권3호
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• pp.361-366
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• 2020

Background: This study aimed to identify the validity of breast cancer symptom questionnaire of worker's special health examination and its relationship with breast ultrasonography findings in young female night workers. Methods: The breast cancer symptom questionnaire data of worker's special health examination and breast ultrasonography results in young female shift workers who worked in one electronic manufacture company were collected from 2014 to 2018. Results: Of the 857 workers, 18 had a Breast Imaging Reporting and Database System category 4 or higher. Among other variables, shift work tenure alone was associated with the risk of having a Breast Imaging Reporting and Database System category higher than 4. The sensitivity, specificity, positive predictive value, and negative predictive value of the symptom questionnaire were 16.7%, 87.7%, 2.8%, and 98.0%, respectively. Conclusion: The current breast cancer symptom questionnaire of the worker's special health examination is inappropriate due to its low sensitivity and positive predictive value. In the future, female night workers will need alternative measures for more accurate screening for breast cancer.

• 대한영상의학회지
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• 제83권5호
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• pp.991-1002
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• 2022

담도폐쇄증은 신생아 담즙 정체의 드물지만 중요한 원인이다. 적절한 치료와 예후를 위해서는 정확한 조기 진단이 중요하다. 본 종설에서는 초음파 검사, MRI, 간담도 핵의학스캔, 담관조영술 등의 영상 검사에서 담도폐쇄증의 영상 소견을 검토하였다. 지금까지 알려진 주요 영상의학적 소견들은 담낭의 비정상적인 모양과 크기, 간문맥 주변의 비후를 나타내는 'triangular cord' sign, 총담관이 보이지 않고, 간동맥 혈류가 증가하는 소견 등과 함께 동반된 기형의 유무들을 보이는 것이다. 담도폐쇄증의 진단을 위해 초음파 검사, MRI, 간담도 핵의학 스캔, 담관조영술 등의 여러 영상 검사들을 시행하며, 1차 영상 검사로 초음파 검사가 중요하다. 본 종설에서는 각 영상 검사들에서 지금까지 알려진 담도폐쇄증의 소견들과 함께 조기 신생아기에서 담도폐쇄증 진단의 어려움, 그리고 간 섬유화를 예측하기 위한 영상의 역할도 검토하였다. 본 종설이 담도폐쇄증 진단에 도움이 되길 바란다.

• Imaging Science in Dentistry
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• 제42권2호
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• pp.115-119
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• 2012

Today, ultrasound imaging is being widely used to assess soft tissue lesions in the maxillofacial region. However, ultrasound investigations of intra-osseous lesions are rare, especially for tumors of the jaws. This report emphasized the capability of this useful imaging modality in identification of the characteristics of malignant conditions involving the bone. Mesenchymal chondrosarcoama, one of the unusual malignant conditions of the jaw, was presented in a young male with significant facial swelling. Different imaging modalities parallel with the histopathologic investigation confirmed the diagnosis. Interestingly, destruction of the bony cortex and new bone formation with a characteristic "sun ray appearance", highly suggestive of sarcomas, was manifested on the ultrasonograph. Thus, this report presented the ultrasonographic features of chondrosarcoma of mandible and considered the ultrasonography to be a useful imaging modality to evaluate intra-osseous jaw lesions.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2008년도 추계학술대회
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• pp.191-191
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• 2008

• Journal of Korean Neurosurgical Society
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• 제42권2호
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• pp.141-144
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• 2007

The association of medial elbow ganglion cyst with cubital tunnel syndrome has been rarely reported. A 61-year-old man presented with progressive right hypothenar atrophy and paresthesia for 7 months. Ultrasonography and magnetic resonance imaging revealed ulnar nerve entrapment with a cystic ganglion in cubital tunnel. Decompression of ulnar nerve and excision of the ganglion were performed. Motor function of the ulnar nerve showed an improvement four months later after surgery. Because most ganglia are occult, imaging study is warranted especially in case with osteoarthritis. Excision of the ganglion performed concurrently with decompression of the ulnar nerve provide satisfactory results.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2008년도 추계학술대회
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• pp.189-189
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• 2008