1.Transient common bile duct dilatation in infants.
Jee Young KIM ; Ok Hwa KIM ; Hyun Sook KIM ; Choon Yul KIM ; Yong Whee BAHK
Journal of the Korean Radiological Society 1992;28(2):293-296
Follow-up sonographic studies of three infants, whose initial sonograms showed findings suggestive of choledochal cyst, demonstrated disappearance of cystic dilatation of the common bile ducts. The phenomena could be accounted for by acute common bile duct obstruction secondary to bile sludge. Bile plug syndrome should also be included in the differencial diagnosis. When a cystic or fusiform dilatation of the common bile duct is seen on sonogram. Conservative management must be the choice of approach unless the finding is proven to unchanged over a period of time and irreversible.
Bile
;
Choledochal Cyst
;
Common Bile Duct*
;
Diagnosis
;
Dilatation*
;
Follow-Up Studies
;
Humans
;
Infant*
;
Sewage
;
Ultrasonography
2.Neonatal hydrometrocolpos: a case report.
Hyang Sun KIM ; Ok Wha KIM ; Choon Yul KIM ; Yong Whee BAHK
Journal of the Korean Radiological Society 1991;27(4):577-580
No abstract available.
3.MR Imaging of Gastric Carcinoma' Comparison with CT.
Kyung Ah CHUN ; Kyung Sub SHINN ; Choon Yul KIM ; Jae Mun LEE ; Hyang Sun KIM
Journal of the Korean Radiological Society 1994;31(2):287-294
PURPOSE: To assess the value of MR imaging compared to CT for the staging of gastric carcinoma when body-wrap-around surface coil, intravenous glucagon, motion suppression technique and effervescent granules are used. MATERIAL AND METHOD: CT and MRI were performed for thirty-five patients with gastric carcinoma. Postcontrast CT scan was performed immediately after oral effervescent granules and Buscopan were given. Before MR imaging, BWA surface coil was wrapped around the upper abdomen. T1 coronal, sagittal and axial SE images (TRITE=400/15 msec) were obtained immediately after oral effervescent granules and glucagon were given. Respiratory compensation and presaturation techniques were used for each imaging. Three radiologists evaluated independently for randomly mixed 70 sets of CT and MR images. The signal intensity of gastric mass and enlarged lymph nodes were compared to the signal intensity of the adjacent pancreas, liver and spleen to evaluate any discriminating features between them. RESULTS: The accuracy in the diagnosis of pancreatic invasion was 83.8% on MRI and 74.3% on CT (p < 0.05). The accuracy of MRI and CT was 77.1% and 72.4% in detecting of gastric tumor respectively (p > 0.05), 73.3% and 68.6% in gastric serosal invasion (p> 0.05), 50.5% and 42.9% in lymph node metastasis (p > 0.05). The gastric mass and enlarged lymph nodes were hypointense to the intensity of pancreas and liver in more than 78% of cases. CONCLUSION: MRI was comparable to CT scan for the staging of gastric carcinoma. Therefore, MRI could be used as an alternative or adjunctive diagnostic modality in the staging of gastric carcinoma.
Abdomen
;
Butylscopolammonium Bromide
;
Compensation and Redress
;
Diagnosis
;
Glucagon
;
Humans
;
Liver
;
Lymph Nodes
;
Magnetic Resonance Imaging*
;
Neoplasm Metastasis
;
Pancreas
;
Spleen
;
Tomography, X-Ray Computed
4.Pancreatic invasion of gastric carcinoma in emaciated patients: the value of combined analysis with CT and upper gastrointestinal series.
Jae Mun LEE ; Hyun KIM ; Choon Yul KIM ; Yong Whee BAHK
Journal of the Korean Radiological Society 1992;28(2):223-228
The obliteration of a fat plane between the gastric carcinoma and the pancreas is a major criterion on CT scan for pancreatic invasion of gastric carcinoma. However, this sign is not always a reliable indicator of invasion, as the patients with gastric carcinoma are often emaciated. Producing a false positive CT findings. The purpose of our study is to improve the diagnostic accuracy of pancreatic invasion of gastric carcinoma in cases which the fat plane between the gastric carcinoma and the pancreas is obliterated in conventional CT scan. The authors performed lateral decubitus as well as supine CT scans and upper gastrointestinal series(UGIS) in 49 pathologically proven cases in which the fat plane was obliterated between the gastric carcinoma and the pancreas on conventional supine CT scan. Pancreatic invasion was suggested when the fat plane was obliterated persistently in the lateral decubitus view as well as the supine CT images and the involved gastric wall and adjacent pancreas maintained constant approximation despite postural change(CT+), and when the gastric tumor moved downward on the erect view of the UGIS no more than 1.5 time the height of the first lumbar vertevral body(UGIS+). Among 49 cases in which the fat plane between the gastric carcinoma and the pancreas was obliterated on supine CT scan, pancreatic invasion was confirmed pathologically in 11 cases(22.4%). Eight of 11 cases proven as pancreatic invasion were correctly diagnosed as pancreatic invasion by this combined analysis (CT+/UGIS+, 72.7%). Twenty seven of 38 cases proven as no pancreatic invasion were correctly diagnosed as no pancreatic invasion(CT-/UGIS-, 71.1%). Twelve cases showed CT +/UGIS-or CT-/UGIS+, so it was inconclusive whether there was invasion or not. The overall diagnostic accuracy was 71.4%. In conclusion, combined analysis with supine and lateral decubitus CT and UGIS is useful for improving diagnostic accuracy for pancreatic invasion by gastric carcinoma in patients of which the fat plane between the gastric carcinoma and the pancreas is obliterated on conventional supine CT.
Humans
;
Pancreas
;
Tomography, X-Ray Computed
5.Diagnosis of unilateral pulmonary arterial agenesis using scintiangiography: a case report
Ok Hwa KIM ; Choon Yul KIM ; Kyung Sub SHINN ; Yong Whee BAHK
Journal of the Korean Radiological Society 1986;22(4):479-482
A 7-year-old boy presented with productive cough and mild dyspnea. He had a history of intlermittant attacksof broanchopneumonia, but otherwise he was healthy. He had a small right lung on chest roentgenogram. Thediagnosis of developmental hypoplasia of the right lung due to congenital absence of the right pulmonary arterywas made by radionuclide angiocardiography and subsequently confirmed by cardiac catheterization and angiography.
Angiocardiography
;
Angiography
;
Cardiac Catheterization
;
Cardiac Catheters
;
Child
;
Cough
;
Diagnosis
;
Dyspnea
;
Humans
;
Lung
;
Male
;
Thorax
6.CT evaluation of choriocarcinoma with brain metastases
Sei Chul YOON ; Choon Yul KIM ; Hyung Chul KWON ; Young Whee BAHK ; Seung Jo KIM
Journal of the Korean Radiological Society 1984;20(1):3-12
It is well established that the CT is an essential part not only in screening primary brain tumors, but alsoin staging known malignancy. This paper reports various CT findings demonstrated in 12 cases of choriocarciomawith brain metastasis. The CT findings such as the number, location and density of the metastatic lesions, thedegree of brain edema, mass effect and effect of contrast enhancement are reviewed as well as the episode ofstroke syndrome and survival duration after neurologic symptoms attacks. The results were as follows; 1. Ten ofthese cases showed solitary metastatic lesion and remaining 2 cases were multiple lesions. 2. One was isodensedensity and the others were hemorrhagic increased denstiy by CT. 3. All of these showed mass effect to thesurrounding structures along with moderate to marked brain edema. 4. The position of the metastatic lesion werelocated at the supratentorially in all cases. Most of them were at the unilateral frontal or parietal area of bothof them. One which noted multiple metastatic foci showed at the bilateral occipital regions. 5. Nine cases showedring enhancement after contrast infusion. One which noted isodense density on the noninfusion scan showed alsoring enhancement after contrast infusion. 6. Nine cases showed positive stroke syndrom. One of them was perforemdemergency craniotomy. The remainging 3 cases noted progressive neurologic symptoms. 7. Two cases were noted onlybrain metastasis but the others also had various degree of pulmonary metastasis and 2 of latter had hepaticmetastasis, too. 8. Most of the cases were treated with CHAMOCA regimen, and one of them was taken whole brainirradiation (3000 rads/2 weeks). Another one case revealed marked regression of not only metastatic brain lesionbut the pulmonary lesion after the 8th course of CHAMOCA regimen and still alive for over 460 days.
Brain Edema
;
Brain Neoplasms
;
Brain
;
Choriocarcinoma
;
Craniotomy
;
Female
;
Mass Screening
;
Neoplasm Metastasis
;
Neurologic Manifestations
;
Occipital Lobe
;
Pregnancy
;
Rabeprazole
;
Stroke
7.Radiologic Findings of Secondary Systemic Amyloidosis Associated with Tuberculosis: A Case Report.
Kyung Sub SHINN ; Seong Tae HAHN ; Choon Yul KIM ; Jae Mun LEE
Journal of the Korean Radiological Society 1995;33(1):97-99
Amyloidosis is a rare systemic disease caused by extracellular deposition of insoluble protein. Systemic amyloidosis is subclassified into idiopathic primary and secondary form. The cause of secondary amyloidosis includes tuberculosis, familial Mediterranean fever, rheumatoid arthritis and multiple myeloma. We report a case of tuberculosis-related, secondary systemic amyloidosis which involved liver, spleen, kidneys, stomach, urinary bladder and lymph nodes.
Amyloidosis*
;
Arthritis, Rheumatoid
;
Familial Mediterranean Fever
;
Kidney
;
Liver
;
Lymph Nodes
;
Multiple Myeloma
;
Spleen
;
Stomach
;
Tuberculosis*
;
Urinary Bladder
8.Evaluation of hepatic pliability using supine and erect abdominal x-rays
Se Young JUNG ; Cheol Kyu PARK ; Seog Hee PARK ; Choon Yul KIM ; Yong Whee BAHK
Journal of the Korean Radiological Society 1986;22(4):499-502
Although many approaches have been attempted in the evaluation of liver size such as measurement of length,area and volume, the linear measurements have been used most frequently because of simplicity. We measured theliver size using 4 linear measurements for evaluation of hepatic pliability on plain abdominal film in the erectand the supine position. Our cases consisted of 125 persons who have no symptom or signs clinically and havenormal liver function test. The results were as follows: 1. The measurements of the liver size using diagonaldiameter(DD), oblique diameter of right lobe(OD), midline vertical diameter(MD) and height of right dome of theliver(HD) were ; 19.6+-1.8cm, 13.7+-1.6cm, 2.03+-0.4cm in the supine position; and 20.5+-2.1cm, 21.9+-2.1cm,15.4+-2.1cm, 1.87+-0.4cm in the erect position, respectively. 2. The differences of each diameter between erectand supine position were 0.9+-1.0cm in DD, 0.9+-1.0cm in OD and 1.7+-1.4cm in MD, and they were longer in thesupine position (p<0.001). 3. The HD was slinghtly longer in the supine position than in the erect position(p<0.001). 4. Among the 4 measurements, the largest difference of linear diameter between the erect and the supineposition was by MD. 5. We found the change or size and shape of the normal liver in the different position.
Humans
;
Liver
;
Liver Function Tests
;
Pliability
;
Supine Position
9.Persistent air bubbles in the gallbladder after endoscopic retrograde cholangio-pancreatography
Seog Hee PARK ; Se Young JUNE ; Choon Yul KIM ; Yong Whee BAHK
Journal of the Korean Radiological Society 1986;22(4):495-498
Multiple small air bubbles were introduced into the gallbladder (GB) during the endoscopic retrogradecholangio-pancreatography(ERCP). Prolonged appearance of movable small round filling defects in the GB weredetected for more than 18 hours in the GB. The importance of delayed GB films after ERCP and the differentiationbetween the stones and air bubbles are discussed.
Cholangiopancreatography, Endoscopic Retrograde
;
Gallbladder
10.The value of x-ray CT in orbital fractures
Myung Hee CHUNG ; Jae Mun LEE ; Choon Yul KIM ; Yong Whee BAHK
Journal of the Korean Radiological Society 1986;22(4):454-460
On the pulse from the trauma transiting to posterior side of the orbit, orbital fractures are occurred throughthe weak point of the orbital wall. Invagination of soft tissue or entrapment of muscles may be associated withorbital fracture. In condition of inaccurate diagnosis, appropriate surgical repairment is impossible andcomplications such as diplopia or enophthalmia are developed. CT scan is diagnostic procedure which demonstratesaccurately the site and stage of orbital fracture, and its associated findings. The authors has been studied in 21orbital CT scans to evaluate the relative value of plain X rays and CT scans in the diagnosis of orbital fracturesduring the period from January 1982 to September 1985. The conclusions were as follows: 1. Diagnostic rate was100% by CT, 40% by initial and 80% by retrospective interpretation of conventional X-ray films. 2. Low X-raydiagnostic rate of medical wall fractures(26.7%) was due to thinness of the bone. 3. Medial wall fractures wereassociated with floor fractures in 46%. 4. Orbital soft tissue injuries and abnormalities of PNS were preciselyevaluated by CT scan.
Diagnosis
;
Diplopia
;
Muscles
;
Orbit
;
Orbital Fractures
;
Retrospective Studies
;
Soft Tissue Injuries
;
Thinness
;
Tomography, X-Ray Computed
;
X-Ray Film