Opportunistic muscle measurements on staging chest CT for extremity and truncal soft tissue sarcoma are associated with survival

被引:12
作者
Phan, Eileen N. [1 ]
Thorpe, Steven W. [2 ]
Wong, Felix S. [3 ]
Saiz, Augustine M. [4 ]
Taylor, Sandra L. [5 ]
Canter, Robert J. [6 ]
Lenchik, Leon [7 ]
Randall, R. Lor [2 ]
Boutin, Robert D. [8 ]
机构
[1] Univ Calif Davis, Sch Med, Sacramento, CA 95817 USA
[2] Univ Calif Davis, Dept Orthopaed Surg, Sarcoma Serv, Sacramento, CA 95817 USA
[3] Univ Calif Davis, Dept Radiol, Sacramento, CA 95817 USA
[4] Univ Calif Davis, Dept Orthopaed Surg, Sacramento, CA 95817 USA
[5] Univ Calif Davis, Dept Publ Hlth Sci, Sacramento, CA 95817 USA
[6] Univ Calif Davis, Dept Surg, Div Surg Oncol, Sacramento, CA 95817 USA
[7] Wake Forest Sch Med, Dept Radiol, Winston Salem, NC 27101 USA
[8] Stanford Univ, Dept Radiol, Stanford, CA 94305 USA
基金
美国国家卫生研究院;
关键词
muscle metrics; myosteatosis; sarcoma; sarcopenia; SARCOPENIA; ATTENUATION; MORTALITY; PREVALENCE;
D O I
10.1002/jso.26077
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background and Objectives Computed tomography (CT) measurements of sarcopenia have been proposed as biomarkers associated with outcomes in various cancers and have typically been evaluated at the L3 vertebral level. However, staging imaging for patients with extremity and truncal soft tissue sarcoma (STS) often only includes chest CT imaging which precludes evaluation at L3. Therefore, we sought to evaluate muscle metrics at T12 on standard staging chest CT scans and evaluate for correlation with overall and event-free survival in patients with STS. Methods CT chest imaging for 89 patients with intermediate and high-grade STS (53 male, 36 female; 58.5 +/- 19.0 years old, follow-up 37.4 +/- 27.1 months) was reviewed on PACS at T12 for skeletal muscle density (SMD) and skeletal muscle index (SMI). Results Overall survival increased with increased SMD on univariate (hazard ratio [HR] = 0.61 [0.43, 0.86]) and age-adjusted analysis (HR = 0.65 [0.42, 0.89]. Event-free survival also increased with increased SMD in univariate analyses (HR = 0.68 [0.49, 0.95]) but did not maintain significance after adjusting for age (HR = 0.68 [0.43, 1.07]). SMI was not a predictor of overall or event-free survival. Conclusions Higher SMD measured on routinely obtained staging chest CTs in STS patients is associated with improved survival.
引用
收藏
页码:869 / 876
页数:8
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