Densitometry and osteoporosis

Densitometry and osteoporosis

What is osteoporosis?

It is a disease of the skeleton, which is expressed in decreasing bone density and as a consequence, reducing its strength. Osteoporosis is the most susceptible to women. Bone thinning in women begins at the age of 25 years and accelerates greatly after menopause. Men are susceptible to osteoporosis is much less. Osteoporosis impaired microarchitecture, bone becomes thin and fragile. Osteoporosis runs covertly and does not have specific symptoms. Often a person learns about him already after the fracture. The deformation of the skeleton - the vertebrae are flattened, curved spine. Flattened vertebrae compress the spinal cord most often at the lumbar spine, which leads to pain and limitation. Osteoporosis dramatically increases the likelihood of fractures. In situations when a healthy person will get off with a minor injury, a person suffering from osteoporosis is at risk for a long time to be bedridden.

What is a bone density test?

Bone densitometry is used to determine bone health and eliminate the risk of bone fractures. Early detection of osteoporosis allows time to take measures to prevent pathological fractures.

the Usual x-ray allows you to "eyeball" to determine osteoporosis, when it is 20-30% of bone mass lost. In the last two decades developed highly efficient devices for bone densitometric studies to measure bone loss and diagnose them at early stages of osteoporosis with a precision of 2-5% in different parts of the skeleton.

methods x-ray bone densitometry based on measurement of the flux of x-ray radiation passing through the bone tissue. Narrow and very thin beam of x-rays is directed on the measured area of bone and the intensity passed through the bone of the beam recorded by the detector. The more bone retards the flow of light, the greater its density.

the radiation Dose received by the patient when densitometry is very low - less than one-tenth the dose of standard chest x-ray.

To shown densitometry?

  • Women in the first few years after menopause (especially after the removal of the ovaries); 
  • All men with two or more risk factors for osteoporosis; 
  • All people that had one or more fractures over the age of 40 years is not associated with major incidents (car accident, fall from height, sporting injuries); 
  • People for a long period of time, taking glucocorticoid hormones (prednisone, hydrocortisone), thyroid hormones; 
  • People who have suspected osteoporosis when conducting x-ray examination of the bones; 
  • People who are receiving drug therapy for osteoporosis and for monitoring the effectiveness of treatment

How to prepare for densitometry?

Eat as you normally would but stop taking calcium supplements, at least, the day before the survey. If you have recently been screened with primeneniem barium or computed tomography (CT) with primeneniem contrast agent or radioisotope scanning, inform your doctor. You may have to wait 10-14 days before doing a DEXA study. If there is any chance that you are pregnant, inform your doctor.

How to make a bone density test?

bone density test takes 10 to 15 minutes. You will need to lie on a padded table, under which is a radiation source. Above the Desk is a sensor.In the sanatorium "Beautifully" explores the loss of bone density in the lumbar spine and upper femur. In these areas the majority of osteoporosis-related fractures.

What will I feel during densitometry?

there is nothing You will experience. Humans have no receptors capable of responding to x-rays. Moreover, such weak as in the densitometer. When you will be on the table, you may be asked to maintain a given position for a short time while the arm of the machine passes over your body, making measurements. During the examination, you should try to keep perfectly still so the image is clear. The examination is painless, and the radiation dose is very low.

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