No abstract available.
Kidney* ; Perfusion* ; Radionuclide Imaging*

No abstract available.
Captopril* ; Diagnosis* ; Hypertension, Renovascular* ; Radionuclide Imaging*

No abstract available.
Parkinson Disease* ; Technetium Tc 99m Exametazime* ; Tomography, Emission-Computed, Single-Photon*

BACKGROUND AND OBJECTIVES: The purpose of this study was to investigate the criterion-related concurrent validity of two standardized auditory-perceptual assessments and the Acoustic Voice Quality Index (AVQI) for measuring dysphonia severity in patients with vocal cord paralysis (VCP). MATERIALS AND METHODS: Total 210 patients with VCP and 236 normal voice subjects were asked to sustain the vowel [a:] and to read aloud the Korean text “Walk”. A 2 second mid-vowel portion of the sustained vowel and two sentences (with 26 syllables) were recorded. And then voice samples were edited, concatenated, and analyzed according to Praat script. Two standardized auditory-perceptual assessment (GRBAS and CAPE-V) were performed by three raters. RESULTS: The VCP group showed higher AVQI, Grade (G) and Overall Severity (OS) values than normal voice group. And the correlation among AVQI, G, and OS ranged from 0.904 to 0.926. In ROC curve analysis, cutoff values of AVQI, G, and OS were < 3.79, < 0.00, and < 30.00, respectively, and the AUC of each analysis was over .89. CONCLUSION: AVQI and auditory evaluation can improve the early screening ability of VCP voice and help to establish effective diagnosis and treatment plan for VCP-related dysphonia.
Acoustics* ; Area Under Curve ; Diagnosis ; Dysphonia* ; Humans ; Mass Screening ; ROC Curve ; Vocal Cord Paralysis* ; Vocal Cords* ; Voice ; Voice Quality

No abstract available.
Dipyridamole* ; Tomography, Emission-Computed, Single-Photon*

No abstract available.
Myocardial Infarction*

No abstract available.
Gallium* ; Lymphoma*

No abstract available.
Coronary Artery Disease* ; Coronary Vessels* ; Electrocardiography* ; ROC Curve*

To evaluate left ventricular diastolic function in patients with coronary artery disease, gate radionuclide ventriculography was performed prospectively in 42 patients who were admitted to Seoul National University Hospital from November 1985 to August 1986 because of anterior chest pain. All patients had no valvular heart disease, congenital heart disease, cardiomyopathy and arrhythmia, and no abnormal vall motion in gated nuclide ventriculography and contrast left ventriculography. 25 patients with more than 50% of stenosis in coronary arteriography were compared with 17 control subjects without stenosis. The following results were obtained; 1) There were no significant differences between normal controls and patients with coronary artery disease in the analysis of the parameters of the left ventricular systolic function, such as ejection fraction (EF), peak ejection rate (PER), time to peak ejection rate (TPER) and ejection time (TES, TES/BCL). 2) Same results were found with those of the left vnetricular diastolic function, such as peak filling rate (PFR), diastolic time interval (DTI, DTI/BCL), rapid diastolic filling interval and time to late diastolic filling (TLDF). 3) The percent contribution of late diastolic filling to stroke volume (%LDF/SV) was more increased in patients with coronary artery disease than the normal control subjects (38.2+/-12.4% vs 28.3+/-7.8%, P<0.01). 4) As the results of above, it can be concluded that the percent contribution of late diastolic filling to stroke volume (%LDF/SV) obtained by using the non-invasive method of gated radionuclide ventriculography can be a sensitive parameter for early evaluation of the left ventricular diastolic dysfunction in coronary artery disease.
Angiography ; Arrhythmias, Cardiac ; Cardiomyopathies ; Chest Pain ; Constriction, Pathologic ; Coronary Artery Disease* ; Coronary Vessels* ; Gated Blood-Pool Imaging ; Heart Defects, Congenital ; Heart Valve Diseases ; Humans ; Prospective Studies ; Radionuclide Ventriculography ; Seoul ; Stroke Volume

No abstract available.
Arachnoid*