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library name : انستیتو تغذیه دانشگاه علوم پزشکی شهید بهشتی
Material Type : Latin Articles
Language of Document : English
Record Number : 61606
Doc. No : 257A
Main Entry : FOROUGH B
Title & Author : COMPARISON OF BONE MINERAL DENSITY MEASURED BY DUAL X-RAY, AXIAL DUAL-ENERGY PHOTON X-RAY ABSORPTIOMETRY AND LASER ABSORPTIOMETRY OF CALCANEUS [Article]
Title : IRANIAN JOURNAL OF MEDICAL SCIENCES (IJMS)
Volume Number : , Vol.30 ؛ No.1
Date : , (2005)
page : : 34 - 37
Abstract : The objective of this study was to validate the use of bone mineral measurements of the calcaneus bone by dual X-ray and laser )DXL( in a cross-sectional study carried out in an osteoporosis clinic. Measurements of bone mineral density )BMD( at proximal femur and spine were obtained by dualenergy photon X-ray absorptiometry )DEXA(. Osteoporosis was defined by a DEXA T-score <-2.5 at the femoral neck or lumbar spine. Sensitivity, specificity and kappa statistics for DXL were calculated, assuming the DEXA measurement as the gold-standard. The study included 475 women with a mean age of 54▒آ11.9 years. 15percent had osteoporosis while 39percent were osteopenic )-2.5<T-score between<-1( at the femoral neck or spine. A significant correlation )p<0.001( was found between BMD values as measured by DXL at femoral neck and DEXA at the lumbar spine. Assuming the same T-score cut-off value for the diagnosis osteoporosis and a modified cut-off value for the diagnosis of osteopenia )-2.5<T-score<- 1.5(, yields a sensitivity of 83percent and a specificity of 74percent to 86percent for the DXL device. In conclusion, BMD measured at the calcaneal bone by DXL, has a good correlation with that measured by axial DEXA.
Descriptor : BONE MINERAL DENSITOMETRY. CALCANEUS. OSTEOPORESIS
Added Entry : GHASEM ZADEH A
: SALIMZADEH A.
 
 
 
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