Tissue oximetry: a comparison of mean values of regional tissue saturation, reproducibility and dynamic range of four NIRS-instruments on the human forearm.
Tissue oximetry: a comparison of mean values of regional tissue saturation, reproducibility and dynamic range of four NIRS-instruments on the human forearm.
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DOI：
10.1364/boe.2.003047
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发表时间：
2011-11-01
影响因子：
3.4
通讯作者：
Greisen G
中科院分区：
文献类型：
--
作者：
Hyttel-Sorensen S;Sorensen LC;Riera J;Greisen G
我们比较了成人前臂上四种不同仪器的局部组织血红蛋白饱和度(StO2)的绝对值、重复性和动态范围。每个受试者身上的传感器都被重新放置了10次。通过运动和随后的动脉闭塞来估计动态范围。平均动脉血氧分压在INVOS 5100组为70.1%±6.7，Niro 200 NX组为69.4%±5.0，Niro 300组为63.4%±4.5，OxyPrem组为60.8%±3.6。相应的重复性软件分别为5.4%(CI 4.4~6.9)、4.4%(CI 3.5~5.2)、4.1%(CI 3.3~4.9)和2.7%(CI 2.2~3.2)。动态范围Δ分别为45.0%、46.8%、44.8%和27.8%。综上所述，三种商用近红外光谱仪器的绝对值不同，但重现性和动态范围非常相似。
We compared absolute values of regional tissue hemoglobin saturation (StO2), reproducibility, and dynamic range of four different instruments on the forearm of adults. The sensors were repositioned 10 times on each subject. Dynamic range was estimated by exercise with subsequent arterial occlusion. Mean StO2 was 70.1% ± 6.7 with INVOS 5100, 69.4% ± 5.0 with NIRO 200 NX, 63.4% ± 4.5 with NIRO 300, and 60.8% ± 3.6 with OxyPrem. The corresponding reproducibility Sw was 5.4% (CI 4.4–6.9), 4.4% (CI 3.5–5.2), 4.1% (CI 3.3–4.9), and 2.7% (CI 2.2–3.2), respectively. The dynamic ranges ΔStO2 were 45.0%, 46.8%, 44.8%, and 27.8%, respectively. In conclusion, the three commercial NIRS instruments showed different absolute values, whereas reproducibility and dynamic range were quite similar.