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Bone Densitometry for Technologists
Chapter 1 - An Introduction to Conventions in Densitometry
11
Medical
Professional
06/27/2017

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Term
Bone Mineral Density (BMD)
Definition

g/cm2

 

mg/cm3

Term
BMD (g/cm2) x Area (cm2) =
Definition
BMC (g)
Term
BMD (mg/cm3) x Volume (cm3) =
Definition
BMC (mg)
Term
Quantitative ultrasound (QUS) measurements of bone diensity do not measure BMC or area. Instead, two parameters of the passage of sound through bone are measured: ________________ and _________________.
Definition

speed of sound (SOS),

 

broadband ultrasound attenuation (BUA) 

Term
Standard scores take their name from their dependence upon the "standard" __________, a statistical measure of variability about an average value.
Definition
deviation
Term
The root-mean-square error in the calculation of the sBMD is estimated to be ____% for the PA spine and total femur and even larger for the proximal femur subregions.
Definition
4
Term
The WHO criteria were intended to be applied to ________________ women only, making the extension of the color scheme across the age range inappropriate.
Definition
postmenopausal
Term
The T-score should/should not be used or diagnosis in premenopausal women.
Definition
should not
Term
In 2004, the _____________________ issued guidelines for densitometry nomenclature as it applied to studies performed specifically with dual-energy X-ray absorptiometry
Definition
International Society for Clinical Densitometry
Term
The number of standard deviations above or below the mean for a healthy 30-year-old adult of the same sex and ethnicity as the patient
Definition
T-score
Term
The number of standard deviations above or below the mean for the patient's age, sex and ethnicity.
Definition
Z-score
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