MAGNETIC RESONANCE IMAGING IN THE EVALUATION OF MORPHOLOGICAL AND STRUCTURAL CHANGES OF THE VERTEBRAL BODIES OF THE LUMBAR SPINE WITH BONE MINERAL DENSITY REDUCTION

The aim of the study was to study the morphological and structural changes of the vertebral bodies in patients with different bone mineral density by MRI. Materials and methods. 81 patients with different bone mineral density (BMD) of the vertebral bodies of the lumbar spine (LS) had taken part in the study. Osteopenia was diagnosed in 33 patients, 28 have osteoporosis and 20 patients without evidence of osteoporosis (according to the DXA, which was made all the investigated) were in the control group. 69 of them were women and 12 men with a mean age 49,6 ± 7,6 years (control group), 56,5 ± 9,8 years (patients with osteopenia), 66,0 ± 9,4 years (with osteoporosis). All patients underwent dual-energy X-ray absorptiometry (DXA) and magnetic resonance imaging (MRI). DXA has been made on the unit «Lunar PRODIGY Primo DHA» (analysis version: 11.40) manufacture GE Healthcare, according to the standard protocol with the definition of osteoporosis by WHO (1994). In this case, average bone mineral density BMD (g/cm2) in the bodies of L1-L4 were: in healthy ones -1,232 ± 0,06; when osteopenia - 1,032 ± 0,07; osteoporosis - 0,757 ± 0,08. The average T -test was consistent, respectively: T - 1,27 ± 0,71; T - 1,40 ± 011, T - 3,09 ± 1,73. The difference in BMD between I and II groups was 16,2 %, between I and III groups - 25%. MRI morphometry in patients with osteopenia changes of the vertebral bodies were accompanied by POP: marked reduction in the average height of the vertebral bodies, more pronounced than in osteoporosis, a slight drop height of the front body, reducing of the Barnett-Nordin index (B/N) - 0,84. Osteopenia significantly correlated with BMD of vertebral body height rear L1, the index of B/N in the body of L4. In osteoporosis MRI morphometry data were characterized by the fact that the front and the average height of the vertebral bodies were not changed significantly. In patients with osteoporosis BMD was significantly correlated with rear height of the vertebral bodies - L1 (r - 0,49, p = 0,02), L2 (r - 0,46, p = 0,04), L3 (r - 0,45 p = 0,04). B/N index in the bodies of L1, L2 and L3 had weak connection correlation (respectively, r + 0,31 *, r + 0,25 *, r - 0,27 *). It was found that Veins Brescia visualization with MRI along with morphological changes are indicators of the bone mineral density disturbance. Results. 81 patients with different bone mineral density (BMD) of the vertebral bodies of the lumbar spine (LS) had taken part in the study. Osteopenia was diagnosed in 33 patients, 28 have osteoporosis and 20 patients without evidence of osteoporosis (according to the DXA, which was made all the investigated) were in the control group. 69 of them were women and 12 men with a mean age 49,6 ± 7,6 years (control group), 56,5 ± 9,8 years (patients with osteopenia), 66,0 ± 9,4 years (with osteoporosis). All patients underwent dual-energy X-ray absorptiometry (DXA) and magnetic resonance imaging (MRI). DXA has been made on the unit «Lunar PRODIGY Primo DHA» (analysis version: 11.40) manufacture GE Healthcare, according to the standard protocol with the definition of osteoporosis by WHO (1994). In this case, average bone mineral density BMD (g/cm2) in the bodies of L1-L4 were: in healthy ones -1,232 ± 0,06; when osteopenia - 1,032 ± 0,07; osteoporosis - 0,757 ± 0,08. The average T -test was consistent, respectively: T - 1,27 ± 0,71; T - 1,40 ± 011, T - 3,09 ± 1,73. The difference in BMD between I and II groups was 16,2 %, between I and III groups - 25%. MRI morphometry in patients with osteopenia changes of the vertebral bodies were accompanied by POP: marked reduction in the average height of the vertebral bodies, more pronounced than in osteoporosis, a slight drop height of the front body, reducing of the Barnett-Nordin index (B/N) - 0,84. Osteopenia significantly correlated with BMD of vertebral body height rear L1, the index of B/N in the body of L4. In osteoporosis MRI morphometry data were characterized by the fact that the front and the average height of the vertebral bodies were not changed significantly. In patients with osteoporosis BMD was significantly correlated with rear height of the vertebral bodies - L1 (r - 0,49, p = 0,02), L2 (r - 0,46, p = 0,04), L3 (r - 0,45 p = 0,04). B/N index in the bodies of L1, L2 and L3 had weak connection correlation (respectively, r + 0,31 *, r + 0,25 *, r - 0,27 *). Conclusion It was found that Veins Brescia visualization with MRI along with morphological changes are indicators of the bone mineral density disturbance.

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