Search results
Results From The WOW.Com Content Network
The radiation dose of current DEXA systems is small, [24] as low as 0.001 mSv, much less than a standard chest or dental x-ray. [25] [26] However, the dose delivered by older DEXA radiation sources (that used radioisotopes rather than x-ray generators) could be as high as 35 mGy, [27] [28] [29] considered a significant dose by radiological ...
A scanner used to measure bone density using dual energy X-ray absorptiometry. Bone density, or bone mineral density, is the amount of bone mineral in bone tissue.The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. [1]
The trabecular bone score is a textural parameter that can be applied to DEXA, which quantifies the local variations in gray level. TBS is derived from the evaluation of the experimental variogram, obtained from the grayscale DEXA. [citation needed] It was found that TBS is a reflection of the structural condition of the bone microarchitecture.
bone density studies for osteoporosis assessment Dual X-ray absorptiometry and laser technique (DXL) in the area of bone density studies for osteoporosis assessment is an improvement to the DXA Technique , adding an exact laser measurement of the thickness of the region scanned.
Primary, or involuntary osteoporosis, can further be classified into Type I or Type II. [1] Type I refers to postmenopausal osteoporosis and is caused by the deficiency of estrogen. [1] While senile osteoporosis is categorized as an involuntary, Type II, and primary osteoporosis, which affects both men and women over the age of 70 years.
During a period of 7½ years, there were 407 cases of heart failure in the group. The risk was found to be 12% to 17% lower for every 70 minutes of light activity (housework, self-care and other ...
It affects women more than men due to the sharp fall in estrogen production that follows menopause. [193] Globally, it is estimated that 21.2% of women and 6.3% of men over the age of 50 have osteoporosis, corresponding to a total of around 500 million people worldwide. [194] About 15% of Caucasians in their 50s and 70% of those over 80 are ...
A medical calculator is a type of medical computer software, whose purpose is to allow easy calculation of various scores and indices, presenting the user with a friendly interface that hides the complexity of the formulas.