1.Percutaneous transluminal retrieval of intravascular iatrogenic foreign body by loop-snare technique.
Ik YANG ; Yup YOON ; Joo Won LIM
Journal of the Korean Radiological Society 1993;29(5):944-948
The use of intravacular catheterization for both diagnostic and therapeutic purposes increased the incidence of iatrogenic foreign bodies, which might cause many complications such as cardiac arrythmias, perforation of cardiac chamber or blood vessels, sepsis and thromboembolism. The authors experienced 5 cases of successful retrieval of intravascular iatrogenic foreign bodies: three cases of subclavian catheter wire and two cases of subclavian catheter. Subclavian catheter was introduced into right subclavian venous route for hyperalimentation or central venous pressure monitoring. The foreign bodies were located in superior vena cava and inferior vena in four cases and in left main pulmonary artery in the other case. We have successufully removed the foreign bodies by interventional procedures. The loop-snare technique is a safe and effective method for retrieval of iatrogenic foreign bodies in great vessels.
Arrhythmias, Cardiac
;
Blood Vessels
;
Catheterization
;
Catheters
;
Central Venous Pressure
;
Foreign Bodies*
;
Incidence
;
Methods
;
Pulmonary Artery
;
Sepsis
;
Thromboembolism
;
Vena Cava, Superior
2.Primary Endodermal Sinus Tumor In The Sacrococcygium.
Jong In KIM ; Jin YANG ; Ik Jun LEE ; Young Hyun KWAK
Journal of the Korean Pediatric Society 1983;26(6):584-588
No abstract available.
Endoderm*
;
Endodermal Sinus Tumor*
3.A Case of Pseudo-Bartter Syndrome.
Ik YANG ; Yul LEE ; Soo Young CHUNG ; Bo Whan CHOI
Journal of the Korean Radiological Society 1994;31(4):727-729
Pseudo-Bartter syndrome is a rare medical disease of the kidney characterized by normal blood pressure, hypokalemic metabolic alkalosis, hyperreninemia and hyperaldosteronism with drug history of diuretics. We report US, CT and MRI findings of a patient with clinically proved pseudo-Bartter syndrome. The patient was a 37-year-old woman with a history of long term ingestion of the diuretics(furosemide) for 20 years. Renal US revealed hyperechoic renal medulla at both kidneys. The resistive index(RI), calculated from the duplex doppler waveform is 0.61. Unenhanced CT revealed faint high attenuation along the medulla. Tl-weighted MRI revealed indistinct corticomedullary differentiation.
Adult
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Alkalosis
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Blood Pressure
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Diuretics
;
Eating
;
Female
;
Humans
;
Hyperaldosteronism
;
Kidney
;
Magnetic Resonance Imaging
4.The important role of CT in lung cancer presenting as pneumonia.
Ik YANG ; Dong Wook SUNG ; Yup YOON ; Nak Kwan SUNG
Journal of the Korean Radiological Society 1992;28(3):367-372
Chest CT is the most useful modality in the diagnosis of primary lung cancer, particularly in patients with recurrent pneumonia which are resistant to antibiotic therapy and in high risk age groups for cancer, The purpose of this examination is to assess the usefulness of CT in pneumonia types of lung cancer. The authors retrospectively analyzed 15 histologically proven cases of pneumonic type lung cancer, which had no evidence of primary lung mass, mediastinal lymphadenopathy or other metastatic lesion on piain chest radiography. On CT scan, a primary lung mass was identified in 13 patients(87%, bronchial obstruction was identified in 12 patients(80%), and metastatic foci was found in the bone(one patient), liver(one patient), and spleen(one patients). In Conclusion, CT scan is a useful method to detect the mediastinal lymphadenopathy or pulmonary mass and also should be the initial radiolographic procedure for diagnosis of lung cancer in patients with recurrent pneumonia on simple chest radiography.
Diagnosis
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Lymphatic Diseases
;
Methods
;
Pneumonia*
;
Radiography
;
Retrospective Studies
;
Thorax
;
Tomography, X-Ray Computed
5.The soft tissue tumors of the hand.
Eung Shick KANG ; Ick Hwan YANG ; Weon Ik LEE
The Journal of the Korean Orthopaedic Association 1992;27(7):1885-1890
No abstract available.
Hand*
6.Syphilitic gastritis: a case report.
Ik YANG ; Dong Ho LEE ; Young Tae KO ; Jae Hoon LIM ; Joo Won LIM
Journal of the Korean Radiological Society 1992;28(4):623-625
Syphilitic involvement of the stomach often takes the appearance of neoplastic conditions. We describe the radiological findings of syphilitic gastritis. A 36-year-old man was diagnosed with gastric cancer by upper GI and CT, but syphilitic gastritis was confirmed by endoscopy and upper GI series performed after penicillin therapy, We report a case of syphilitic gastritis presented as advanced stomach cancer by clinical, endoscopic and radiological study.
Adult
;
Endoscopy
;
Gastritis*
;
Humans
;
Penicillins
;
Stomach
;
Stomach Neoplasms
7.Overview of Treatment for Obstructive Sleep Apnea in Adults.
Jun Sang SUNWOO ; Kwang Ik YANG
Journal of Sleep Medicine 2017;14(1):1-9
Obstructive sleep apnea (OSA) is a common disorder characterized by obstructive apneas, hypopneas, and respiratory effort related arousals during sleep. Treatment of OSA is important because untreated patients have potential adverse clinical outcomes, such as excessive daytime sleepiness, metabolic dysfunction, cardiovascular disease, and mortality. Therefore, OSA should be considered as a chronic disease that requires long-term and multidisciplinary care. Positive airway pressure (PAP) therapy is the mainstay of treatment for OSA in adults. Alternative therapies include oral appliance, behavioral modification, and upper airway surgery. The treatment of OSA in adults is reviewed here with focus on PAP therapy.
Adult*
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Apnea
;
Arousal
;
Cardiovascular Diseases
;
Chronic Disease
;
Complementary Therapies
;
Humans
;
Mortality
;
Sleep Apnea, Obstructive*
8.Clear Cell Adenocarcinoma of the Urinary Bladder Accompanied by Vesical Endometriosis.
Eun Kyung HAN ; So Yeon PARK ; Nam Hoon CHO ; Woo Ik YANG ; Chanil PARK
Korean Journal of Pathology 1990;24(4):489-496
A case of clear cell adenocarcinoma arising in the female urinary bladder, which is accompanied by endometriosis of the urinary bladder and the uterus, is reported. The carcinoma protruded into the vesical lumen as a fungating mass, and had a tubulocyotic pattern. The tumor cell had intracytoplasmic glycogen and electron microscopically short microvilli on their surface, resembling clear cell acenocarcinoma of the female genital tract including ovary. This is the fourth case report of clear cell adenocarcinoma complicating vesical endometriosis, and may support the view that clear cell carcinome arises from endometriosis which, in turn, from the Mullerian remnant.
Female
;
Humans
;
Adenocarcinoma
9.Clear Cell Adenocarcinoma of the Urinary Bladder Accompanied by Vesical Endometriosis.
Eun Kyung HAN ; So Yeon PARK ; Nam Hoon CHO ; Woo Ik YANG ; Chanil PARK
Korean Journal of Pathology 1990;24(4):489-496
A case of clear cell adenocarcinoma arising in the female urinary bladder, which is accompanied by endometriosis of the urinary bladder and the uterus, is reported. The carcinoma protruded into the vesical lumen as a fungating mass, and had a tubulocyotic pattern. The tumor cell had intracytoplasmic glycogen and electron microscopically short microvilli on their surface, resembling clear cell acenocarcinoma of the female genital tract including ovary. This is the fourth case report of clear cell adenocarcinoma complicating vesical endometriosis, and may support the view that clear cell carcinome arises from endometriosis which, in turn, from the Mullerian remnant.
Female
;
Humans
;
Adenocarcinoma
10.A STUDY OF ION BEAM ASSISTED DEPOSITION(IBAD) OF TiN ON Ni-Cr Be ALLOY FOR SURFACE CHARACTERISTIC.
Soo Young CHOI ; Sun Hyung LEE ; Ik Tae CHANG ; Jae Ho YANG ; Hun Young CHUNG
The Journal of Korean Academy of Prosthodontics 1999;37(2):212-234
Dental restorative materials must have the physical properties to withstand wear and corrosion. Base metal alloys possess better mechanical properties and lower price than the gold alloys. For these reason such alloys have largely replaced the precious metal alloys. One aspect to consider is the release of metal substances to oral environment. The release of elements from dental alloys is a continuing concern because the elements may have the potentially harmful biological effects on local tissue. The purpose of this study was to minimize metal release on the nonprecious metal surfaces by ion bea assisted deposition(IBAD) of titanium nitride (TiN). Ni-Cr-Be alloys with and without TiN coatings were secured in an wear test machine opposing ruby ball to determine their relative resistance to wear with 100m, 200m, 300m and 400m sliding distance. And the corrosion behavior of the Ni-Cr-Be alloys with and without TiN coating and 3 dental noble alloys have been studied. Potentiodynamic curves were used to analyse the corrosion characteristics of the alloys. The measurement of the released Ni and Ci ions was conducted by analysis of the electrolyte solution with atomic absorption spectroscopy. The results were as follows : 1. The critical sliding distance that wore down TiN coating of 2.5micrometer thickness in this study condition was 300m. 2. Ion beam assisted deposition of TiN showed a good surface modification with respect to the properties of wear and corrosion resistance. 3. X-ray diffraction showed that the strongest peak of TiN(111) in the coatings. 4. The release of Ni and Cr ions from alloys measured by means of atomic absorption spectroscopy was reduced by ion beam assisted deposition of TiN.
Absorption
;
Alloys*
;
Corrosion
;
Dental Alloys
;
Gold Alloys
;
Ions
;
Spectrum Analysis
;
Tin*
;
Titanium
;
X-Ray Diffraction