Pericardial effusion is extra fluid around the heart.
Pericardial effusion is extra fluid inside the sac that surrounds the heart. The extra fluid causes pressure on the heart, which stops it from pumping blood normally. Lymph vessels may also be blocked, which often causes bacterial or viral infections. If fluid builds up quickly, a condition called cardiac tamponade may occur. In cardiac tamponade, the heart cannot pump enough blood to the rest of the body. This is life-threatening and must be...
When used to detect whether a heart attack is occurring or may occur,
SPECT locates areas of the heart muscle that have inadequate blood flow
compared with areas that have normal flow. Inadequate blood flow means that
coronary arteries are blocked and a heart attack is
occurring. SPECT can also assess how bad the blood flow
It is a noninvasive imaging scan that exposes you to radiation. For this test, your doctor injects a tiny amount of radioactive
tracers through a vein in your arm. After the radioactive tracer is injected, a
camera that can detect the radiation emitted by these tracers rotates around
you. This creates images of your heart from different angles. Then, computer
graphics are used to create three-dimensional images of your heart.
If your SPECT
test is abnormal, you are considered at high risk of a heart attack.