1.Hepatic and postrenal segment anomalies of inferior vena cava
Yeon Hyeon CHOE ; Jae Hyung PARK ; Kyung Mo YEON ; Man Chung HAN
Journal of the Korean Radiological Society 1986;22(3):361-367
Postrenal segment anomalies of inferior vena cava such as bilateral inferior vena cava and left-sided inferiorvena cava can simulate lymphadenopathy on CT scan and these anomalous veins need consideration in retroperitonealoperations such as procedures for prevenetion of venous embolism, splenorenal shunt operation and aorticprosthetic repalcement. Retrocaval ureter is a rare cause of obstructive uropathy or medical deviation of ureter.We analysed 16 cases of postrenal segment anomalies daignosed by CT, vena cavography, retrograde pyelography andultrasonography including six rare positional anomalies at hepatic segment of inferior vena cava diagnosed bycardiac angiography. The results were as follows. 1. Postrenal segment anomalies were 6 cases of bilateral IVC, 8cases of left-sided IVC and 2 cases of retrocaval ureters. On CT scan, 3 cases of bilateral IVC and 4 cases ofleft-sided IVC were accompained by malignant tumors, but caval veins could be discriminated from enlarged nodesbecause of continuous tubular nature of vein on consecutive sections with homogeneous strong enhancement. Twocases of retrocaval ureters showed hydroureteronephrosis due to ureteral compression by IVC. 2. Hepatic segmentanomalies were 6 cases. Five cases of IVC on left side of vertebral crossed midline at live to enter right-sidedright atrium and one case of IVC on right side crossed midline to enter left-sided right atrium. Four cases ofcomplex cardiac anomalies, 4 cases of asplenia and 2 cases of situs ambigus were associates with these anomalies.
Angiography
;
Embolism
;
Heart Atria
;
Lymphatic Diseases
;
Retrocaval Ureter
;
Splenorenal Shunt, Surgical
;
Tomography, X-Ray Computed
;
Ureter
;
Urography
;
Veins
;
Vena Cava, Inferior
2.An experimental study on the influence of the intravasculargianturco tupe stents on the vascular structures.
Yeon Hyeon CHOE ; Jae Hyung PARK ; Joon Koo HAN ; Man Chung HAN ; Chu Wan KIM
Journal of the Korean Radiological Society 1991;27(4):431-439
No abstract available.
Stents*
3.Analysis of salpingeal patency in young-aged women underwent diagnostic laparoscopy with Fitz-High-Curtis Syndrome.
Ji Seon BAE ; Yeon Jae CHOE ; Min Hyung JUNG
Korean Journal of Obstetrics and Gynecology 2008;51(2):220-224
OBJECTIVE: To analyze the tubal patency in the young-aged women underwent diagnostic laparoscopy with Fitz-High-Curtis Syndrome (FHCS). METHODS: Clinicopathologic results of young-aged women who underwent diagnostic laparoscopy with pelvic inflammatory disease from March 2005 through April 2007 were reviewed. Twenty six patients aged 19-29 years old and preserved their both tubes after diagnostic laparoscopy were included in this study. All were underwent chromopertubation test (CPT) during laparoscopy and postoperative hysterosalpingography (HSG) 3 months later. RESULTS: Of 26 patients, eight patients were diagnosed with FHCS and the others were not. There was no significant difference in mean age, mean hospitalization days, and frequency in past-history of parturition, abortion, chlamydia and gonococci infection between patients with FHCS and with non-FHCS (P>0.05). There was no significant difference in frequency of tubal obstruction in laparoscopic CPT (P>0.05) but not in postoperative outpatient HSG (P<0.05). CONCLUSION: The tubal obstruction may be more frequent in FHCS than non-FHCS and the reliability of laparoscopic CPT for diagnosing the tubal obstruction is supposed to be low. Therefore, as for FHCS patients, HSG should be executed to investigate tubal factor which is helpful to forecast the fertility.
Aged
;
Chlamydia
;
Fallopian Tube Diseases
;
Female
;
Fertility
;
Hospitalization
;
Humans
;
Hysterosalpingography
;
Laparoscopy
;
Outpatients
;
Parturition
;
Pelvic Inflammatory Disease
4.Magnetic Resonence Imaging of Anomalous Pulmonary Venous Connections.
Ji Eun KIM ; Yeon Hyeon CHOE ; Heung Jae LEE ; Hak Soo KIM ; Jae Kon KO ; Jae Jin HAN
Journal of the Korean Radiological Society 1994;30(4):673-679
PURPOSE: We evaluated the capability of MR in the diagnosis of anomalous pulmonary venous connection (APVC). MATERIALS AND METHODS: The patient group consisted of 11 total APVC and 8 partial APVC diagnosed with MR. Echocardiography was performed in all cases, cardiac angiography in 12 cases and operation in 12 cases. We compared MR findings with those of operation, echocard iography and cardiac angiography. RESULTS: In surgically proven 12 cases, diagnostic accuracy of preoperative MR, echocardiography and cardiac angiography was 100%, 67% and 63%, respectively. In the remaining cases, MR findings well correlated with those of echocardiography or cardiac angiography. Stenosis of common pulmonary vein or superior vena cava was identified in 4 cases. In one patient, MR depicted associated cor triatriatum clearly. CONCLUSION: MR is an effective modallty in depicting anomalous pulmonary venous con nections.
Angiography
;
Constriction, Pathologic
;
Cor Triatriatum
;
Diagnosis
;
Echocardiography
;
Humans
;
Pulmonary Veins
;
Vena Cava, Superior
5.Infrahepatic interruption of inferior vena cava
Yeon Hyeon CHOE ; Dong Ho LEE ; Young Goo KIM ; Jae Hyung PARK ; Kyung Mo YEON ; Man Chung HAN
Journal of the Korean Radiological Society 1986;22(1):124-130
Congenital anomaly of IVC is rare, but understanding of this anomaly is important in radiological diagnosis,angiographic procedures and major retroperitoneal and thoracic surgery. We analysed 23 cases of IVC interruptiondiagnosed by cardiac angiography at Seoul National University Hospital. The results were as follows: 1. Theincidence of infrahepatic interruption of IVC was 0.45% of the patients having cardiac angiography and mostpatients showed cyanosis(91%). 2. The most common associated cardiac anomaly was right ventricular outflow tractobstruction (60%). Other associated cardiac defects were VSD, ASD, valvular anomaliesin 9 cases(39%) respectively;double outlet right bentricle, bilateral superior vena cava, single ventricle in 6 cases(26%) respectively; singleatrim, PDA in 5 cases(22%) respectively. 6 cases of situs inversus, 3 cases of situs ambiguus,2 cases of visceralheterotaxia and one case of asplenia were observed also. 7 cases of left-sided IVC were associated with IVCinterruption in normal situs.
Angiography
;
Humans
;
Seoul
;
Situs Inversus
;
Thoracic Surgery
;
Vena Cava, Inferior
;
Vena Cava, Superior
6.Screening Mammogram in Health Center: Medical Audit for Six Years.
Ji Young KIM ; Boo Kyung HAN ; Yeon Hyeon CHOE ; Jae Hyung KIM
Journal of the Korean Radiological Society 2003;49(2):137-142
PURPOSE: To report the findings of a six-year medial oudit performed at our mammographic screening centre, comparing those findings with the follow-up data stored at our hospital and at the Korea Central Cancer Registry. MATERIALS AND METHODS: We analyzed the findings of 32,289 mammographic examinations of 25,541 women performed at our screening center between 1994 and 1999. For follow-up and outcome monitoring, the guideline of the American College of Radiology Breast Imaging Reporting and Data System (ACR BI-RADS) was used. All mammograms were categorized by means of BI-RADS, and cases in categories 0, 4, and 5 were followed up through a review of our hospital information system. To determine whether any cases were false negative, we compared breast cancer patients registered in our medical record department and in the Korean Central Cancer Registry during the study period, with women whose mammograms were interpreted as normal or benign at our screening center within a year prior to cancer diagnosis. RESULTS: The mean age of women enrolled in this study was 48.6 years, ten years less than reported in the West. The recall rate was 6.2%. Among 256 women whose final assessment category was 4 or 5, breast cancer was diagnosed in 51. The cancer detection rate was 2.0/1,000 women; positive predictive value 1 (PPV1: PPV, based on abnormal findings at screening examination) was 2.5% of cases and PPV2 (PPV when biopsy or surgical consultation was recommended) was 20%. The most common mammographic finding was microcalcifications only (45%). The rate of minimal breast cancer, including invasive cancer less than 1 cm in diameter and ductal carcinoma in situ, was 72.5%. Node positivity was 27%. Sensitivity was 85.0% based on the tumor registry of our institution's medical record department, and 78.5% based on the tumor registry of the Korea Central Cancer Registry. Specificity was 99.0%. CONCLUSION: In our study, the cancer detection rate at screening mammography was 2.0/1,000 women. The rate of minimal breast cancer (72.5%) was very high but measurable sensitivity was 78.5%, somewhat lower than the ACR guideline of 85%. To improve the performance of screening mammography, appropriate interpretation of mammography and constant, follow-up and outcome monitoring are important.
Biopsy
;
Breast
;
Breast Neoplasms
;
Carcinoma, Intraductal, Noninfiltrating
;
Diagnosis
;
Early Detection of Cancer
;
Female
;
Follow-Up Studies
;
Hospital Information Systems
;
Humans
;
Information Systems
;
Korea
;
Mammography
;
Mass Screening*
;
Medical Audit*
;
Medical Records
;
Sensitivity and Specificity
7.Multiple Cranial Nerve Paralysis Following The Inadvertent Total Spinal Anesthesia .
Yeon II CHOE ; Jae Kyu CHEUN ; Jung Gil JUNG
Korean Journal of Anesthesiology 1973;6(2):233-236
There have been no case reports of cranial nerve paralysis from total spinal anesthesia. This case report is to explain the possibility of cranial nerve involvement from high spinal anesthesia. A 17-year-old girl with a huge abdominal mass underwent exploratory laparotomy under spinal anesthesia. A lumbar tapping was performed in a sitting position at a level between L4-L5 using a 22 gauze pencil point needle, then 4 cc of 0.4% tetracaine in 6% D/W was injected into the subarachnoid space, followed by the patient lying down in a slight Trendelenburgs position. Shortly after the spinal injection of pontocaine, all signs of a high spinal block could be observed clearly, accompanided by the following increasing signs of intracranial nerve paralysis: phrenic nerve, vagus nerve, glossopharyngeal nerve, trigeminal nerve, trochreal nerve and finally oculomotor nerve in that order. She was then intubated and her respiration was controlled without delay. The patient recovered gradually in the reverse order one hour from the time after the spinal injection of pontocaine, without any permanent damage noted. Differential diagnosis between the shock and pure total spinal anesthesia are described here in.
Adolescent
;
Anesthesia, Spinal*
;
Cranial Nerves*
;
Deception
;
Diagnosis, Differential
;
Female
;
Glossopharyngeal Nerve
;
Humans
;
Injections, Spinal
;
Laparotomy
;
Needles
;
Oculomotor Nerve
;
Paralysis*
;
Phrenic Nerve
;
Respiration
;
Shock
;
Subarachnoid Space
;
Tetracaine
;
Trigeminal Nerve
;
Vagus Nerve
8.MR Imaging of Primary Cardiac and Pericardiac Tumors.
Jin Wook CHUNG ; Jae Hyung PARK ; Man Chung HAN ; Myung Kwan LIM ; Ji Hye KIM ; Yeon Hyun CHOE
Journal of the Korean Radiological Society 1995;32(2):249-254
PURPOSE: To evaluate characteristic MR findings of primary cardiac and pericardiac tumors. MATERIALS AND METHODS: There were myxomas (n=7), malignant lymphoma (n=l), lipoma (n=l), and pericardiac mesotheliomas (n=2). We analyzed location, size, shape, signal intensity, contrast enhancement, and associated findings of adjacent structures such as pericardiac and pleural effusion, and mediastinal lymph node enlargement. RESULTS: Locations of the myxomas were left atrium in four cases, left ventricle in one, right atrium in one, and right ventricle in one. Mean diameter was 3.5cm (range, 2-7cm). They were polypoid or Iobulated in shape, and attached to interatrial or interventricular septurn in all cases except in right atrial myxoma which was attached to lateral wall. Their peduncles were demonstrated in three left atrial myxomas. The signal intensities were iso or slightly high on T1-weighted images and high on T2-weighted images. Pleural and pericardial effusions were shown in the three cases. Malignant lymphoma was manifested as large mass in right ventricle infiltrating to right atrium, interventricular septum, right paratracheal and retrocardiac area. It had slightly high intensity in both T1- and T2-weighted images with a strong contrast enhancement and associated with both pericardiac and pleural effusion. Lipoma was polypoid in shape and attached to lateral wall of left ventricle with bright T1 and high T2 signal intensity. Pericardiac mesothelioma was manifested as a pericardiac and atrial mass with diffuse irregular uneven thickening of pericardium which had iso signal on T1- and high T2-weighted images with moderate contrast enhancement. Conculsion: MR imaging is a very useful method in demonstration of the location, extent, tissue characteristics of the mass, and relationship with its adjacent structu res in evaluation of cardiac and pericardiac tumors.
Heart Atria
;
Heart Ventricles
;
Lipoma
;
Lymph Nodes
;
Lymphoma
;
Magnetic Resonance Imaging*
;
Mesothelioma
;
Myxoma
;
Pericardial Effusion
;
Pericardium
;
Pleural Effusion
9.Factors affecting successful esophageal foreign body removal using a Foley catheter in pediatric patients
Donghoon LIM ; Jong Kun KIM ; Yun Jeong KIM ; Yeon Joo CHO ; Jae Wan CHO ; Jungbae PARK ; Jae Young CHOE ; Byung-Ho CHOE
Clinical and Experimental Emergency Medicine 2021;8(1):30-36
Objective:
This study aimed to determine the factors that affect successful esophageal foreign body (FB) removal using a Foley catheter and to identify methods to increase the success rate.
Methods:
In this retrospective, cross-sectional study, we included pediatric patients who presented with esophageal FB impaction that was removed using a Foley catheter in the emergency departments of tertiary care and academic hospitals. We analyzed the effect of the patients’ age, sex, and symptoms; FB type, size, and location; Foley catheter size; complications during FB removal; duration between FB ingestion and removal; operator’s years of training; sedation; success rate of FB removal; endoscopy; and patient’s posture during FB removal on the success of Foley catheter-based FB removal.
Results:
Of the 43 patients we enrolled, Foley catheter-based FB removal was successful in 81.4% (35/43) but failed in 18.6% (8/43) of patients; no FB-removal-related complications were reported. There was no significant association between the success rate of Foley catheter-based FB removal and any study variable. A higher number of years in training tended to increase the success rate of Foley catheter-based FB removal, although statistical significance was not achieved.
Conclusion
Children’s esophageal FB removal is a practical challenge in the emergency rooms, and using a Foley catheter is associated with a high success rate of the removal and low occurrence of complications. In this study, no single variable was found correlated with the success rate of Foley catheter-based esophageal FB removal in pediatric patients, which may indicate multiple variables interacting with one another to affect the success rate.
10.Factors affecting successful esophageal foreign body removal using a Foley catheter in pediatric patients
Donghoon LIM ; Jong Kun KIM ; Yun Jeong KIM ; Yeon Joo CHO ; Jae Wan CHO ; Jungbae PARK ; Jae Young CHOE ; Byung-Ho CHOE
Clinical and Experimental Emergency Medicine 2021;8(1):30-36
Objective:
This study aimed to determine the factors that affect successful esophageal foreign body (FB) removal using a Foley catheter and to identify methods to increase the success rate.
Methods:
In this retrospective, cross-sectional study, we included pediatric patients who presented with esophageal FB impaction that was removed using a Foley catheter in the emergency departments of tertiary care and academic hospitals. We analyzed the effect of the patients’ age, sex, and symptoms; FB type, size, and location; Foley catheter size; complications during FB removal; duration between FB ingestion and removal; operator’s years of training; sedation; success rate of FB removal; endoscopy; and patient’s posture during FB removal on the success of Foley catheter-based FB removal.
Results:
Of the 43 patients we enrolled, Foley catheter-based FB removal was successful in 81.4% (35/43) but failed in 18.6% (8/43) of patients; no FB-removal-related complications were reported. There was no significant association between the success rate of Foley catheter-based FB removal and any study variable. A higher number of years in training tended to increase the success rate of Foley catheter-based FB removal, although statistical significance was not achieved.
Conclusion
Children’s esophageal FB removal is a practical challenge in the emergency rooms, and using a Foley catheter is associated with a high success rate of the removal and low occurrence of complications. In this study, no single variable was found correlated with the success rate of Foley catheter-based esophageal FB removal in pediatric patients, which may indicate multiple variables interacting with one another to affect the success rate.