1.Pulmonary Hemosiderosis Due to Mitral Valvular Heart Disease.
Eung Yeop KIM ; Tae Sung KIM ; Jongho HAN ; Kyung Soo LEE
Journal of the Korean Radiological Society 1999;40(1):73-76
We report a case of biopsy-proven secondary hemosiderosis of the lung in a 58-year-old patient with mitralvalvular heart disease. Both chest radiography and high-resolution CT demonstrated patchy areas of ground-glassopacity; the former indicated that it was in both lungs, while the latter showed inter- and intralobular septalthickening. These findings were reversible when pulmonary venous hypertension was corrected.
Heart Diseases
;
Heart Valve Diseases*
;
Hemosiderosis*
;
Humans
;
Hypertension
;
Lung
;
Middle Aged
;
Radiography
;
Thorax
2.Korean Guidelines for the Appropriate Use of Cardiac CT.
Young Jin KIM ; Hwan Seok YONG ; Sung Mok KIM ; Jeong A KIM ; Dong Hyun YANG ; Yoo Jin HONG
Korean Journal of Radiology 2015;16(2):251-285
The development of cardiac CT has provided a non-invasive alternative to echocardiography, exercise electrocardiogram, and invasive angiography and cardiac CT continues to develop at an exponential speed even now. The appropriate use of cardiac CT may lead to improvements in the medical performances of physicians and can reduce medical costs which eventually contribute to better public health. However, until now, there has been no guideline regarding the appropriate use of cardiac CT in Korea. We intend to provide guidelines for the appropriate use of cardiac CT in heart diseases based on scientific data. The purpose of this guideline is to assist clinicians and other health professionals in the use of cardiac CT for diagnosis and treatment of heart diseases, especially in patients at high risk or suspected of heart disease.
Chest Pain/*diagnosis/radiography
;
Exercise
;
Heart/radiography
;
Heart Diseases/diagnosis/*radiography
;
Humans
;
Republic of Korea
;
Tomography, X-Ray Computed/instrumentation/*methods/*standards
3.Correlation between NT-proBNP and lipase levels according to the severity of chronic mitral valve disease in dogs
Jun Seok PARK ; Jae Hong PARK ; Kyoung Won SEO ; Kun Ho SONG
Journal of Veterinary Science 2019;20(4):e43-
Chronic mitral valve disease (CMVD) is the most common cardiovascular disease in dogs, causing decreased cardiac output that results in poor tissue perfusion and tissue damage to kidneys, pancreas, and other organs. The purpose of this study was to evaluate the relationships between heart disease severity and N-terminal pro B-type natriuretic peptide (NT-proBNP) and lipase in dogs with CMVD, as well as to evaluate longitudinal changes in these values. A total of 84 dogs participated in this 2015 to 2017 study. Serum values of NT-proBNP and lipase were analyzed; radiography was used to measure the vertebral heart score and assess various echocardiographic values. NT-proBNP showed a strong positive correlation with increasing stage of heart disease; lipase showed a mild positive correlation with heart disease stage. When the three values (NT-proBNP, lipase and month) were continuously measured at 6-month intervals, all showed a correlation with the increasing length of the disease.
Animals
;
Cardiac Output
;
Cardiovascular Diseases
;
Dogs
;
Echocardiography
;
Heart
;
Heart Diseases
;
Kidney
;
Lipase
;
Mitral Valve
;
Natriuretic Peptide, Brain
;
Pancreas
;
Perfusion
;
Radiography
4.Physical Examination of Heart Diseases in Children.
Journal of the Korean Pediatric Cardiology Society 2007;11(3):179-184
A complete history and physical examination for heart diseases in children, especially neonates and infants, enables the pediatrician to compile an appropriate differential diagnosis, order tests such as chest radiography and electrocardiogram in a suitable manner, and efficiently care for the patients. The ability to obtain an accurate history and to perform an excellent physical examination is very important and provides the basis for best management of children with heart diseases. As such, we are reviewed the components of the history and the physical examination that are critical in assessing the cardiovascular system.
Cardiovascular System
;
Child*
;
Diagnosis, Differential
;
Electrocardiography
;
Heart Diseases*
;
Heart*
;
Humans
;
Infant
;
Infant, Newborn
;
Physical Examination*
;
Radiography
;
Thorax
5.Measurement of Opening and Closing Angles of Aortic Valve Prostheses In Vivo Using Dual-Source Computed Tomography: Comparison with Those of Manufacturers' in 10 Different Types.
Young Joo SUH ; Young Jin KIM ; Yoo Jin HONG ; Hye Jeong LEE ; Jin HUR ; Dong Jin IM ; Yun Jung KIM ; Byoung Wook CHOI
Korean Journal of Radiology 2015;16(5):1012-1023
OBJECTIVE: The aims of this study were to compare opening and closing angles of normally functioning mechanical aortic valves measured on dual-source computed tomography (CT) with the manufacturers' values and to compare CT-measured opening angles according to valve function. MATERIALS AND METHODS: A total of 140 patients with 10 different types of mechanical aortic valves, who underwent dual-source cardiac CT, were included. Opening and closing angles were measured on CT images. Agreement between angles in normally functioning valves and the manufacturer values was assessed using the interclass coefficient and the Bland-Altman method. CT-measured opening angles were compared between normal functioning valves and suspected dysfunctioning valves. RESULTS: The CT-measured opening angles of normally functioning valves and manufacturers' values showed excellent agreement for seven valve types (intraclass coefficient [ICC], 0.977; 95% confidence interval [CI], 0.962-0.987). The mean differences in opening angles between the CT measurements and the manufacturers' values were 1.2degrees in seven types of valves, 11.0degrees in On-X valves, and 15.5degrees in ATS valves. The manufacturers' closing angles and those measured by CT showed excellent agreement for all valve types (ICC, 0.953; 95% CI, 0.920-0.972). Among valves with suspected dysfunction, those with limitation of motion (LOM) and an increased pressure gradient (PG) had smaller opening angles than those with LOM only (p < 0.05). CONCLUSION: Dual-source cardiac CT accurately measures opening and closing angles in most types of mechanical aortic valves, compared with the manufacturers' values. Opening angles on CT differ according to the type of valve dysfunction and a decreased opening angle may suggest an elevated PG.
Adult
;
Aortic Valve/*radiography
;
Female
;
Heart Valve Diseases/therapy
;
*Heart Valve Prosthesis
;
Heart Valve Prosthesis Implantation/*instrumentation
;
Humans
;
Male
;
Middle Aged
;
Retrospective Studies
;
Tomography, X-Ray Computed/methods
6.Coronary Artery Imaging in Children.
Korean Journal of Radiology 2015;16(2):239-250
Coronary artery problems in children usually have a significant impact on both short-term and long-term outcomes. Early and accurate diagnosis, therefore, is crucial but technically challenging due to the small size of the coronary artery, high heart rates, and limited cooperation of children. Coronary artery visibility on CT and MRI in children is considerably improved with recent technical advancements. Consequently, CT and MRI are increasingly used for evaluating various congenital and acquired coronary artery abnormalities in children, such as coronary artery anomalies, aberrant coronary artery anatomy specific to congenital heart disease, Kawasaki disease, Williams syndrome, and cardiac allograft vasculopathy.
Child
;
Child, Preschool
;
Coronary Angiography/*methods
;
Coronary Vessel Anomalies/*radiography
;
Coronary Vessels/*radiography
;
Diagnostic Imaging
;
Echocardiography/methods
;
Female
;
Heart Defects, Congenital/radiography
;
Heart Diseases/diagnosis/*radiography
;
Heart Rate
;
Humans
;
Magnetic Resonance Angiography/*methods
;
Male
;
Mucocutaneous Lymph Node Syndrome/radiography
;
Tomography, X-Ray Computed/methods
7.Radiographic Findings of Primary Lung Cancer with Delayed Detection on Chest Radiographs.
Young Min KIM ; Jin Hwan KIM ; Chang Kyu YANG ; Bin Young JUNG ; Kwang Jin JUN ; Ki Ho JEONG ; Ju Ok KIM ; Sun Young KIM
Journal of the Korean Radiological Society 1999;40(5):879-886
PURPOSE: To analyze the causes of delayed detection of lung cancer on chest radiographs. MATERIALS AND METHODS: We retrospectively reviewed 105 cases in which an initial diagnosis of lung cancer, based on anexamination of plain radiographs, had been missed or misinterpreted. All occurred between October 1993 and April1997. We reviewed the initial chest radiographs and compared the features noted with those seen on later chestradiographs and computed tomographic (CT) images. RESULTS: Undetected lung cancer was identified in 56 patients(56/105, 53.3%) It had been hidden by superim-posed structures (41, 73.2%), overlapped by combined benign diseases(12, 21.4%), or the nodules were subtle(3, 5.4%). Of the 41 lung cancers hidden by a superimposed structure, thecentral type accounted for 29 (70.7%) and the peripheral type for 12 (29.3%). The 29 central type had been hiddenby the left hilum (n=15), the right hilum (n=10), the heart (n=3), or a rib (n=1). The twelve peripheral type werehidden by a rib (n=7), the heart (n=2), the diaphragm (n=2), or the left hilum (n=1). Of the 12 lung cancersoverlapped by combined benign diseases, pulmonary tuberculosis (n=6), pleural effusion (n=4), congestive heartfailure (n=1), and dif-fuse interstitial lung disease (n=1) were present at the time of interpretation. Themisinterpreted lung cancers were identified in 49 patients (49/105, 46.7%) and were seen to be combined withbenign disease (16, 32.6%), or as obstructive pneumonia without a central mass (15, 30.6%), air-spaceconsolidation (7, 14.3%), cavity (7, 14.3%), double lesion (2, 4.1%), or young age below 26 years (2, 4.1%). Ofthe 16 lung cancers misinterpreted as combined disease, pulmonary tuberculosis (n=14) and pleural disease (n=2)had been initially diagnosed. CONCLUSION: Most commonly, lung cancer was missed or misinterpreted because it washidden by a normal structure or combined with a benign disease. Perceptual errors can be reduced by appropriatetechniques and the scrutiny of trouble spots such as the parahilar, retrocardiac, retrodiaphragmatic and costalregions. Errors in the analysis of lung cancer can be reduced by increased awareness of growth patterns anduncommon man-ifestations of the disease.
Diagnosis
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Diaphragm
;
Estrogens, Conjugated (USP)
;
Heart
;
Humans
;
Lung Diseases
;
Lung Diseases, Interstitial
;
Lung Neoplasms*
;
Lung*
;
Pleural Diseases
;
Pleural Effusion
;
Pneumonia
;
Radiography, Thoracic*
;
Retrospective Studies
;
Ribs
;
Thorax*
;
Tuberculosis
8.A Case Report about Anesthesia of the Patient with Ventricular Parasystole.
Korean Journal of Anesthesiology 1989;22(4):575-579
Parasystole is of special interest among the disturbances of ectopic impulse formatioo. First, a parasystolic arrhythmia is of clinical importance because the ventricular origin ordinarily indicates the presence of organic heart disease. Second, parasystole, although not rare, is frequently overlooked because it is difficult to be differentiated from extrasystole. In this paper a ventricular parasystole is presented. A 48 year-old woman was seen with an irregular pulse rate not accompanying cardiac symptoms or signs. The chest radiograph failed to show cardiomegaly. E.K.G. revealed the dominant rhythm of sinus origin with intermittent ventricular parasystolic beats. The basic rhythm was sinus with a rate of 83 per minute. The coupling interval varied between 0.52 & 0.7 second. The shortest, calculated interectopic interval ranged from 45.2 to 49.7 (These numbers represent hundreds of a second). Occasional ventricular fusion beats appeared. She was uneventfully nephrectomized under general anesthesia with halothane-N2O-O2for left renal empyema of tuberculosis. She dispensed well with any antiarrhythmic agent during admission.
Anesthesia*
;
Anesthesia, General
;
Arrhythmias, Cardiac
;
Cardiac Complexes, Premature
;
Cardiomegaly
;
Empyema
;
Female
;
Heart Diseases
;
Heart Rate
;
Humans
;
Middle Aged
;
Parasystole*
;
Radiography, Thoracic
;
Tuberculosis
9.Data analysis for relationship between aging and cardiothoracic ratio based on C-V segmentation algorithm.
Yuanyuan HOU ; Yi LIU ; Ping ZHOU
Journal of Biomedical Engineering 2014;31(3):547-551
Cardiac enlargement is an important symptom of vascular and heart disease. The cardiothoracic ratio (CTR) is an important index used to measure the size of heart. The aim of this study was to assess the relationship between aging and cardiothoracic ratio. This paper also presents an improved C-V level set method to segment lung tissue based on X-ray image, which used to automatically compute CTR. In the investigation carried out in our school, we got more than 3 120 chest radiographs from medical examination of the working population in Beijing, and we systematically studied the effects of age and gender on the CTR to obtain reference values for each group. The reference values established in this study can be useful for recording and quantifying the cardiac enlargement, so that it may be useful for calling attention to the cardiovascular diseases and the heart diseases.
Aging
;
Algorithms
;
Cardiomegaly
;
pathology
;
Heart
;
diagnostic imaging
;
Heart Diseases
;
diagnosis
;
Humans
;
Lung
;
diagnostic imaging
;
Myocardium
;
pathology
;
Radiography, Thoracic
;
methods
;
Reference Values
10.The Relationship between Heart Rate Variability and Aortic Knob Width.
Si Yeun SUNG ; Jee Hye HAN ; Jung Hwan KIM ; Kil Young KWON ; Seong Wook PARK
Korean Journal of Family Medicine 2019;40(1):39-44
BACKGROUND: The aortic knob width (AKW) and the heart rate variability (HRV) were suggested to be related to development of cardiovascular diseases. However, the relationship between them has not been investigated; thus, this study aimed to determine this relationship. METHODS: This study included 587 Koreans aged 18–79 years. Their physical measurements, medical and social histories, blood test findings, and chest radiographs were obtained. The HRV parameters included the standard deviation of the N-N interval (SDNN), root mean square of successive differences (RMSSD), approximate entropy (ApEn), total power (TP), very low frequency (VLF), low frequency (LF), high frequency (HF), and LF/HF ratio, which were measured for 5 minutes. The AKW was measured on chest radiographs by a single reviewer. RESULTS: The AKW was significantly correlated with the HRV parameters, except for the LF/HF ratio. However, RMSSD and ApEn were not significantly related to the AKW in women. After dividing the participants into quartile groups, the AKW was significantly related to the SDNN, RMSSD, TP, VLF, LF, and HF. The HRV parameter values decreased in the higher AKW quartile groups, the HRV parameter values decreased. After adjusting for sex, drinking status, exercise habits, smoking status, waist circumference, and triglyceride, low-density lipoprotein cholesterol, fasting blood sugar, and glycated hemoglobin levels, the AKW showed significant negative associations with the HRV parameters, except for the LF/HF ratio. CONCLUSION: The AKW is significantly associated with the HRV parameters of SDNN, RMSSD, ApEn, TP, VLF, LF, and HF.
Aorta, Thoracic
;
Blood Glucose
;
Cardiovascular Diseases
;
Cholesterol
;
Drinking
;
Entropy
;
Fasting
;
Female
;
Heart Rate*
;
Heart*
;
Hematologic Tests
;
Hemoglobin A, Glycosylated
;
Humans
;
Lipoproteins
;
Radiography, Thoracic
;
Smoke
;
Smoking
;
Triglycerides
;
Waist Circumference