کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1806996 | 1025238 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Interrelationships between 3-T-MRI-derived cortical and trabecular bone structure parameters and quantitative-computed-tomography-derivedbone mineral density
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Recently, 3-T magnetic resonance imaging (MRI) has been introduced for bone imaging. Through higher signal-to-noise ratios, as compared to 1.5-T MRI, it promises to be a more powerful tool for the assessment of cortical and trabecular bone measures. The goal of our study was to compare MRI-derived cortical and trabecular bone measures to quantitative computed tomography (QCT)-derived bone mineral density (BMD). Using 3-T MRI in 51 postmenopausal women, apparent (app.) measures of bone volume/total volume, trabecular number (Tb.N), trabecular thickness (Tb.Th) and trabecular separation were derived at the distal radius, distal tibia and calcaneus. Cortical thickness (Ct.Th) was calculated at the distal radius and distal tibia. These measures were compared to QCT-derived BMD of the spine, hip and radius. Significant correlations (âP<.05; ââP<.001; âââP<.0001) were found between spine BMD- and MRI-derived Ct.Th (rradius=.55, âP<.05; rtibia=.67, âââP<.0001) and app. Tb.N (rradius=.33, âP<.05; rtibia=.35, âP<.05) at the radius and tibia. Furthermore, within the first 10 mm at the radius, an inverse correlation for Ct.Th and app. BV/TV (r6mm=â.56, P<.001; r10mm=â.36, P<.05) and app. Tb.Th (r6mm=â.54, P<.001; r10mm=â.41, P<.05) was found.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Magnetic Resonance Imaging - Volume 28, Issue 9, November 2010, Pages 1299-1305
Journal: Magnetic Resonance Imaging - Volume 28, Issue 9, November 2010, Pages 1299-1305
نویسندگان
Ahi Sema Issever, Thomas M. Link, David Newitt, Thelma Munoz, Sharmila Majumdar,