- Radioactive contamination and transfer
- Advanced MRI Techniques and Applications
- Cardiac Imaging and Diagnostics
- Nuclear Physics and Applications
- Radioactivity and Radon Measurements
- Radioactive element chemistry and processing
- Nuclear and radioactivity studies
- Cardiac Valve Diseases and Treatments
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Radiation Dose and Imaging
- Congenital Heart Disease Studies
- Radiology practices and education
- Cardiovascular Function and Risk Factors
- Advanced Neuroimaging Techniques and Applications
- Aortic Disease and Treatment Approaches
- Cardiomyopathy and Myosin Studies
- Advanced X-ray and CT Imaging
- Radiomics and Machine Learning in Medical Imaging
- Mass Spectrometry Techniques and Applications
- Pulmonary Hypertension Research and Treatments
- Advanced NMR Techniques and Applications
- NMR spectroscopy and applications
- Fetal and Pediatric Neurological Disorders
- Liver Disease Diagnosis and Treatment
Los Alamos National Laboratory
2016-2025
Hill Engineering (United States)
2017-2024
Memorial Sloan Kettering Cancer Center
2024
The University of Texas MD Anderson Cancer Center
2023
West Valley College
2015-2020
Los Alamos National Security (United States)
2012
Robert Morris University Illinois
2002
West Virginia University
1995-1999
Franklin & Marshall College
1999
Oak Ridge National Laboratory
1999
The term obstructive cardiomyopathy has been used to describe a rare disorder of heart muscle in which abnormal ventricular function is associated with massive cardiac hypertrophy (Goodwin et al., 1960).Since recent experience shown that obstruction may be absent although always occurs, we have added the "hypertrophic" our definition.But most commonly produces left outflow and simulates aortic stenosis.Many patients also right outflow, others either or inflow.In some cases, septum seems...
Left ventricular function was studied in 17 patients with ischaemic heart disease and compared 4 normal left function. The the homogeneous group of were further subdivided into those 'without angina' (n=5) 'with (n=12), depending upon presence angina during supine leg exercise at time definitive study. At rest there no significant difference rate, cardiac output, stroke volume, end-diastolic pressure (LVEDP) three groups. During output volume significantly depressed LVEDP raised as a whole...
The effectiveness of repeated plasma exchange with 2 to 4 litres protein fraction as long-term treatment for familial hypercholesterolaemia has been evaluated in six severely affected patients receiving conventional cholesterol lowering treatment. Cell-separator mediated at monthly intervals one two years reduced mean serum levels from 18.5 mmol/l (715 mg/dl) 12.4 (480 female homozygotes but failed influence xanthomata or prevent a two- threefold increase their left ventricular aortic...
The radiological appearances of the pulmonary vascular system in mitral stenosis with hypertension have been reported previously (Goodwin et al., 1952;Davies 1953).In much arterial narrowing was demonstrated on plain X-ray films and arteriograms, lower zones sometimes mid lungs.This paper reports further studies pattern stenosis, also certain types congenital heart disease hypertension.METHODS AND SELECTION OF PATIENTS Patients were studied by radiography chest, arteriography or venous...
Three broad types of vasculitis have been described in rheumatoid arthritis:(1) Subacute lesions small vessels found muscles by Sokoloff, Wilens, and Bunim (1951), the heart, muscles, nerve sheaths Cruickshank (1954).(2) Cases arthritis complicated severe widespread necrotizing arteritis affecting large indistinguishable from polyarteritis nodosa (Aronoff, John-
There were four patients; one man aged 63 years, and three women 48, 47, 23 years.Clinical studies, phonocardiography, cardiac catheter- ization performed in all four, angiocardiography three.Selective angiograms obtained of the right left sides heart patient side only two.The erythrocyte sedimentation rate serum proteins studied *Advanced research fellow American Heart Association.
Nuclear magnetic resonance (NMR) and X-ray computed tomographic (CT) imaging of the brain were performed on nine patients with clinical evidence cerebral involvement by systemic lupus erythematosus (SLE). Focal lesions demonstrated in eight NMR six CT. The examinations both techniques negative one patient showed essentially identical pathological conditions three patients. In more numerous than All seen CT also NMR, mostly greater clarity extent. view limited number patients, this study is...
Seven patients with homozygous familial hypercholesterolaemia, two female and five male, aged 12 to 25 years, underwent clinical angiographic assessment define the associated cardiovascular abnormalities. Four had angina, of whom also syncope on exertion. All an ejection systolic murmur but no click a loud aortic second sound. one gradient between left ventricle aorta, ranging from 20 80 mmHg at time presentation. Angiography showed characteristic narrowing root in all seven coronary ostial...
Fifty patients who presented with angina pectoris were studied to examine the disturbances of regional myocardial perfusion during stress. Each patient underwent 16-point precordial mapping ECG an exercise test, and coronary left ventricular angiography. Regional was assessed using atrial pacing test a short-lived radionuclide, krypton-81m. Eleven had negative tests uniform increases in activity krypton-81m 98 +/- 18.0% pacing. Ten performed 30,000-43,000 J positive tests. These showed...
In two series with a total of 135 patients symptoms due to occlusive vascular disease the lower limbs, 39 per cent 209 limbs studied showed narrowing origin profunda artery. 68 narrowed arteries abnormality was seen only on oblique or lateral radiographs. When superficial femoral artery is occluded, femoris main supplying limb, and this vessel may be considerable functional importance. Localized common but often unrecognized because not adequately demonstrated by standard frontal view...
described in Nigerians by Robertson and Jackson (1960) Abrahams et al. (