correlação entre a ultrassonometria óssea do calcâneo e a densitometria em mulheres pós-menopausadas com fraturas por fragilidade óssea correlation between calcaneal bone ultrasound measurements and densitometry among postmenopausal women with fractures caused by bone fragility

Clicks: 276
ID: 193676
2011
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #33 of 69 articles by views in scientific american

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
OBJETIVO: Avaliar a correlação entre a ultrassonometria (US) do calcâneo e a densitometria (DEXA) em mulheres pós-menopausadas que já apresentavam uma fratura por fragilidade. MÉTODOS: Realizada coorte retrospectiva em 35 mulheres com fraturas osteoporóticas (punho ou coluna), deambulando, acima dos 40 anos, pós-menopausadas, sem tratamento prévio para osteoporose. Dessas, 16 com menos de 60 anos e 19 acima. Foram comparadas a Broadband Ultrasound Attenuation (BUA) e a Speed of Sound (SOS) com os sítios de DEXA (L1-L4, fêmur total, colo de fêmur e punhos), sendo utilizados dois valores de BUA diferentes como ponto de corte para osteoporose: BUA < 60dB/MHz e BUA < 64dB/MHz, e o SOS < 1.600m/s. O intervalo de confiança foi de 95%. Os valores da DEXA e US foram lançados em um gráfico de dispersão, sendo possível, através de regressão linear, estabelecer correlações. Em seguida, a amostra foi estratificada segundo faixas etárias (até 60 e acima ou igual 60 anos). Desta forma, os valores foram novamente confrontados e correlacionados. RESULTADOS: A melhor correlação obtida entre DEXA e US foi entre o T score do punho e BUA < 64dB/MHz, com sensibilidade de 92% e especificidade de 95%. Foram obtidas melhores sensibilidades em todos os sítios da DEXA quando a US foi realizada em pacientes acima dos 60 anos. O SOS compatível com osteoporose é < 1.592,5m/s (sensibilidade de 89% e especificidade de 85%). CONCLUSÃO: US do calcâneo pode ser utilizada para rastreamento do risco de fratura por osteoporose quando utilizado ponto de corte BUA < 64dB/ MHz, principalmente em pacientes acima dos 60 anos.
OBJECTIVE: To assess the correlation between ultrasound (US) measurement on the calcaneus and bone densitometry (DEXA), among postmenopausal women who already presented fragility fractures. METHODS: 35 postmenopausal women over 40 years of age, with the ability to walk and presenting osteoporotic fractures of the wrist or spine, without previous treatment for osteoporosis, were analyzed in a retrospective cohort. Of these, 16 were under 60 and 19 were over 60. The broadband ultrasound attenuation (BUA) and speed of sound (SOS) were compared using DEXA (L1-L4, total femur, femoral neck and wrist). Two different values of BUA were used as cutoff points for osteoporosis: BUA < 60 dB/MHz and BUA < 64 dB/MHz (P < 0.05); and SOS < 1600 m/s. The confidence interval was 95%. The DEXA and US data were plotted on dispersion graphs and, through linear regression, it was possible to establish correlations. Following this, the sample was stratified according to age (up to 60 years and 60 years and over). Thus, the values were again compared and correlated. RESULTS: The best correlation obtained between DEXA and US was between the T-score of the wrist and BUA < 64 dB/ MHz, with 92% sensitivity and 95% specificity. Better sensitivity at all DEXA sites was obtained when US was performed on patients over 60 years of age. The SOS compatible with osteoporosis was < 1592.5 m/s (89% sensitivity and 85% specificity). CONCLUSION: US on the calcaneus can be used for screening the risk of osteoporosis fractures, using a cutoff of BUA < 64 dB/ MHz, especially among patients over 60 years of age.
Reference Key
moraes2011revistacorrelao Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Frederico Barra Moraes;Lindomar Guimarães de Oliveira;Pierre de Souza Novais;Murilo Rodrigues Melo;Mara Lúcia Rassi Guimarães
Journal scientific american
Year 2011
DOI
10.1590/S0102-36162011000200004
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162011000200004
Keywords
ultrasound bone density

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.