• Journal of Yeungnam Medical Science
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• v.23 no.1
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• pp.131-137
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• 2006

Small bowel tumors have been difficult to diagnose because of low incidence and absence of specific symptoms. There are no efficient and accurate tests available for diagnosis. Capsule endoscopy is an efficient diagnostic tool for small bowel disease and obscure gastrointestinal bleeding. We diagnosed two cases of small bowel gastrointestinal stromal tumor (GIST) diagnosed by capsule endoscopy that were treated by surgery. A 68 year old male presented with abdominal pain. The capsule endoscopy showed fungating ulcer mass at the jejunum. A 55 year female presented with melena. The capsule endoscopy showed an intraluminal protruding mass with a superficial ulcer at the jejunum. Two cases were diagnosed with GIST after surgery. We report these two case diagnosed by capsule endoscopy and review the medical literature.

• Clinical Endoscopy
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• v.51 no.6
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• pp.547-551
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• 2018

Unlike wired endoscopy, capsule endoscopy requires additional time for a clinical specialist to review the operation and examine the lesions. To reduce the tedious review time and increase the accuracy of medical examinations, various approaches have been reported based on artificial intelligence for computer-aided diagnosis. Recently, deep learning-based approaches have been applied to many possible areas, showing greatly improved performance, especially for image-based recognition and classification. By reviewing recent deep learning-based approaches for clinical applications, we present the current status and future direction of artificial intelligence for capsule endoscopy.

• Investigative Magnetic Resonance Imaging
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• v.19 no.2
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• pp.114-116
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• 2015

A 21-month-old girl with cri-du-chat syndrome in conjunction with developmental delay underwent brain magnetic resonance imaging (MRI). The MRI showed hypoplasia of the brain stem, a normal cerebellum, thinning of the corpus callosum, and a lack of myelination in both anterior limbs of the internal capsule. She also had neonatal bilateral subependymal cysts. We believe that the symmetrical lack of myelination in both anterior limbs of the internal capsule could be a diagnostic clue of cri-du-chat syndrome.

• The Journal of Internal Korean Medicine
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• v.38 no.2
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• pp.180-189
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• 2017

Objectives: The aim of this study is to describe the effects of traditional Korean medicine treatment on a patient with an intracerebral hemorrhage (ICH) at the left basal ganglia, thalamus, and posterior limb of the internal capsule. Methods: The patient was treated with acupuncture, moxibustion, Hyangsayukgunja-tang, and Samul-tang-gami. The effect of these treatments were evaluated using the manual muscle test (MMT), modified Barthel index (MBI), and National Institutes of Health Stroke Scale (NIHSS). Results: After the treatments, the patient's status improved, as shown by his MMT grade, which increased from 1/1 to 4/4. In addition, the patient's MBI score improved from 0 to 77, and his NIHSS score declined from 16 to 2. In addition, the patient's Levin tube and Foley catheter were removed. Conclusion: The results suggest that traditional Korean medicine may be effective in the treatment of patients with ICH.

• Proceedings of the Optical Society of Korea Conference
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• 2008.02a
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• pp.141-142
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• 2008

In order to develop a simple ray tracing model for simulating the radiation pattern of a LED, the propagation of a ray within the LED capsule was systematically evaluated by considering refraction and reflection from the capsule-air interface, multiple reflection within the capsule, and total internal reflection at the boundary. It was found that concentric ring shapes on the radiation pattern was formed by the rays multiple-reflected from the capsule surface, and that the strength of these rays were decreased rapidly as the number of multiple reflection is increased.

• Journal of the Korean neurological association
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• v.36 no.4
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• pp.354-357
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• 2018

Transient isoniazid-induced brain lesions have rarely been reported. The lesions were in the dentate nucleus of cerebellum and thalamus. Meanwhile, the neurotoxicity of rifampin has not been reported evidently. We observed bilateral lesions in the internal capsule in a young woman after taking a combination of isoniazid and rifampin. She transiently suffered numbness in both hands, dysarthria, and left side motor weakness while taking the medication. Isoniazid may induce structural lesions in various brain areas including the internal capsule.

• The Journal of Internal Korean Medicine
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• v.22 no.2
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• pp.257-262
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• 2001

Cheiro-oral syndrome is characterized by a partial sensory disturbance in one hand and the ipsilateral oral comer. Its lesion is on the sensory track, and it is comparatively small. Most studies are case studies. These studies reported less than 10 cases. We studied two cases. In one, we observed intracranial hemorrhage involving left thalamus, posterior limb of internal capsule about 5cc in brain computed tomographic scan. The case was shown paresthesia of the right hand and ipsilateral comer of the mouth. The patient also complained about disturbing dysstereognosis and disorder of graphaesthesia. In the other case, we observed nodular calcification at the left basal ganglia external capsule in brain computed tomographic scan. The patient also complained about dysesthesia of the right thumb and index finger, fatigue and verbal disturbance. These cases appeared to be typical strokes in the acute phase, but after acute phase, they had dysethesia in the hand and periord for three months.

• Clinical Endoscopy
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• v.51 no.6
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• pp.505-507
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• 2018

• The Transactions of The Korean Institute of Electrical Engineers
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• v.66 no.6
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• pp.923-926
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• 2017

In this study, a novel wideband conformal thin antenna is presented for endoscopic capsule application at the 915 MHz Industrial, Scientific and Medical (ISM) band. The thickness of the antenna is only 0.2 mm which can be wrapped inside a capsule's inner wall. By cutting meandered slots on patch, open end slots on ground and utilizing long arm, the proposed antenna can obtain significant size reduction. The net volume of the proposed antenna including substrate and superstrate is only $37.4mm^3$ ($187mm^2$ surface area). This conformal antenna has shown good performance through simulation and measurement with maximum gain of -23 dBi and wide bandwidth from 137 MHz - 205 MHz depending on different environment. In addition, the effect of internal materials specially metallic battery is discussed briefly.

• Journal of Korean Foot and Ankle Society
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• v.23 no.4
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• pp.166-172
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• 2019

Purpose: This study evaluated the clinical and radiological results after reinforcement of the weakened medial joint capsule using Internal Brace (Arthrex) for treating severe hallux valgus. Materials and Methods: This study reviewed 56 cases of 50 patients that were followed-up postoperatively for at least 12 months, from September 2017 until August 2018. An extended distal chevron osteotomy combined with a distal soft-tissue release was performed by a single surgeon to treat severe hallux valgus. Internal Brace was applied in 12 cases (group A) who had weakened medial joint capsules, and capsulorrhaphy was performed in 44 cases (group B), and these two groups were compared postoperatively for the clinical and radiological results. The postoperative complications were also investigated. Results: No significant differences at 1-year follow-up on the Manchester-Oxford Foot Questionnaire and the patients' satisfaction scores were found between the two groups (p=0.905 and p=0.668, respectively). For the radiology, the changes of the values between before surgery and at 1-year follow-up according to the group showed no significant differences in the hallux valgus angle, intermetatarsal angle, and the hallux interphalangeal angle (p=0.986, p=0.516, p=0.754, respectively). Recurrence of hallux valgus was reported in two cases in group A, and in three cases in group B. Transfer metatarsalgia occurred in 4 cases in group B. Conclusion: Based on these results, we recommend the capsule reinforcing technique using Internal Brace as a successful operative option for treating a weakened medial capsule in patients with severe hallux valgus.