Hematopoiesis occurs in the bone marrow (mainly within flat bones), where erythrocytes, leukocytes and platelets are made; and in lymphoid tissue, which is responsible for the maturation of leukocytes and which is found in the thymus, spleen and lymph nodes.he spleen is the main organ where old red blood cells are destroyed. During the destruction of red blood cells, the heme groups turn into bilirubin and this substance is then captured by the liver and later excreted to the bowels as a part of bile.
I'm getting a CT scan on thursday of the lower abdomen and pelvis because of the possibility of an ovarian cyst. My mom says they can be more than $1000, but I just wanted to know if it was cheaper if it's only for a small part of the body. Our insurance probably won't cover much of it and we do not have a lot of...
Radiation dose from CT scans of the chest, abdomen, or pelvis varies depending on the individual patient, and the technique used. In general, in adults, most abdomen CTs are performed at approximately 10 mSv. The dose is less for a chest CT. The doses should be the same-to-less, if size adjusted, for children.Head CT doses are generally less than about 2-4 mSv. As a rough approximation, one abdomen pelvis CT in an adult is equal to 100-250 chest x-rays.The average background radiation (just from livingâ¦) that individuals get is about 3-3.5 mSv per year.hat is, 4 examinations at 5.0 mSv each done over three years is the equivalent of 20 mSv of dose (4x5=20). This is accumulated over the lifetime. Similarly, if quarterly abdominal CT scans (at 10 mSv each) were given for 5 years, the cumulative dose would be 4x10x5 mSv = 200 mSv. 3.