James P. Shields

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Electron beam computed tomography (CT) provides a safe, rapid, and noninvasive means to detect the presence and quantitate the deposition of calcium in the coronary arteries. To examine the reproducibility of a coronary calcification screen using electron beam CT, 50 subjects underwent two studies, averaging 12 minutes between studies. The number, volume,(More)
BACKGROUND Cardiovascular disease (CVD) is the leading cause of death for men and women in the United States. In 1995, 58,200,000 people were estimated to have the disease, claiming 960,592 lives, while 481,287 people died of coronary artery disease (CAD). Most people are unaware they have CAD, and death is often quite sudden. With more women surviving to(More)
Diabetes is a known risk factor for cardiovascular disease, which is the leading cause of death in the US. Most sufferers are unaware that they have coronary artery disease, and death is often quite sudden. Electron beam computed tomography (EBCT) is a non-invasive procedure that detects coronary artery disease (CAD) by measuring the amount of coronary(More)
Forty patients were treated for cardiogenic shock secondary to acute myocardial infarction. Twenty-one (group 1) were treated with intraaortic balloon counterpulsation and 19 (group 2) were treated with counterpulsation and coronary artery bypass grafting. The groups were similar in age, incidence of previous infarction, initial hemodynamics and coronary(More)
To describe the coronary arteriographic findings during early transmural myocardial infarction and to define the prevalence of coronary thrombosis by arteriography, we performed coronary arteriography and left ventriculography within 24 hours from symptom onset of transmural myocardial infarction in 517 patients. The coronary arteriographic findings(More)
Intravenous administration of potassium to patients with atrial fibrillation treated with digitalis resulted in depression of conduction through the A-V node, appearance of complete A-V dissociation and in some abolition of ventricular ectopic beats. The presence or absence of ectopic ventricular beats as well as the degree of depression of A-V node could(More)
The electron beam computed tomography (EBCT) provides a safe, rapid, and noninvasive means to detect the presence and quantitate the deposition of calcium in the coronary arteries. To examine the inter-rater reliability of a coronary calcification screen using the EBCT, films from 50 subjects were scored by two technicians. The number, volume, and(More)
Mitral valve regurgitation affects heart ventricle volumes, which can be accurately measured by electron beam tomography (EBT). Most studies have focused on the left ventricle, but findings have failed to resolve some crucial clinical issues. We reviewed EBT studies of 35 patients with moderate mitral valve regurgitation but no ischemia, aortic valve(More)