%0 Journal Article
%T The relationship between calcium (water) density and age distribution in adult women with spectral CT: initial result compared to bone mineral density by dual
%A Chen Jing
%A Dong Rui Tong
%A Dong Yue
%A Liu Ai Lian
%A Sun Li Fei
%A Wang Ru Xin
%A Ya Hong Luo
%J Acta Radiologica
%@ 1600-0455
%D 2019
%R 10.1177/0284185118801139
%X Calcium (water) density (DCa(Wa)) of gemstone spectral imaging by spectral computed tomography (CT) is a new method of evaluating bone structures. To investigate age-related change of DCa(Wa) of a chosen lumbar vertebra in adult women with spectral CT and the correlation between the DCa(Wa) and bone mineral density (BMD) of dual-energy X-ray absorptiometry (DXA). A total of 305 adult women underwent spectral CT, 127 of whom simultaneously underwent DXA. All the patients were divided into 11 subgroups based on age. DCa(Wa) and BMD were measured at the second lumbar vertebra on the calcium (water)-based material decomposition images of spectral CT and DXA, respectively. A one-way analysis of variance (ANOVA) was performed for the difference of the measurements among adjacent age subgroups. Pearson correlation was used to assess the association between age and DCa(Wa), age and BMD, as well as DCa(Wa) and BMD. There was a significant negative correlation between DCa(Wa) and age (rˋ=ˋˋ0.719) as well as BMD and age(rˋ=ˋˋ0.851). The mean DCa(Wa) of L2 vertebral body was significantly different between the 40每44- and 45每49-, 45每49- and 50每54-, 55每59- and 60每64-, 65每69- and 70每74-year-old age subgroups. BMD was significantly different between the 35每39- and 40每44-, 45每49- and 50每54-, and 65每69- and 70每74-year-old age subgroups. There was a significant positive correlation between DCa(Wa) and BMD. The DCa(Wa) of lumbar vertebra by spectral CT demonstrated similar age distribution as BMD of DXA and could be used as a method of measuring the vertebral bone mineral density in adult women
%K Computed tomography
%K spectral imaging
%K age
%K calcium(water) density
%K bone mineral density
%K dual-energy X-ray absorptiometry
%U https://journals.sagepub.com/doi/full/10.1177/0284185118801139