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Usha Panneerselvam, MD
Specialty: Internal Medicine
Location and Office HoursWoodridge Medical Associates
Cranston, RI 02920
- BC/BS of Rhode Island
- CIGNA HealthCare
- Neighborhood Health Plan
- United Healthcare
- Roger Williams Medical Center
What is a radiologist?
Healthwise answeredRadiologists are medical doctors who specialize in performing and interpreting diagnostic imaging tests. They read X-rays and scans, such as chest X-rays, ultrasounds or magnetic resonance imaging (MRI). Another specialist or primary care doctor may base treatment decisions on findings reported by the radiologist. Radiologists may also supervise people who perform special tests, such as barium enemas or computed tomography (CT) scans. Radiologists can be board-certified through the Board of Radiology, which is recognized by the American Board of Medical Specialties.
What is the J-curve phenomenon?
The J-curve phenomenon occurs when the blood pressure or blood cholesterol levels of large groups of people are plotted on a graph against risk of death from cardiovascular disease (CVD). This often results in a J-shaped curve. This curve shows that those with higher blood pressure and/or cholesterol levels, closer to the top of the curve, are more likely to die from CVD. The curve also shows that those at the lowest end of the curve (with very low blood pressure and/or low cholesterol levels) also have higher CVD mortality. This accounts for the J shape and is known as the J-curve phenomenon. Most evidence, however, indicates that people at the bottom-left part of the curve (with very low blood pressure and low cholesterol levels) tend to be different from the general population in other ways. Those differences may contribute to the apparent increase in mortality.
What is an aortic dissection?
Mehmet Oz, MD, Cardiology, answeredAortic dissection means there is a dangerous tear in the wall of the aorta, the major artery that carries blood from your heart to the rest of your body. Watch as Dr. Oz explains more about aortic dissection and why it occurs.
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