标题: BloodVitals SPO2 vs Traditional Pulse Oximeters [打印本页] 作者: JanWright 时间: 2025-9-12 20:34 标题: BloodVitals SPO2 vs Traditional Pulse Oximeters
Hypercapnia has been utilized as a stimulus to elicit modifications in cerebral blood flow (CBF). However, in many cases it has been delivered in a non-managed methodology that is commonly difficult to reproduce. The purpose of this examine was to examine the within- and between-visit reproducibility of blood oxygen degree-dependent (Bold) signal adjustments to an iso-oxic sq. wave alteration in end-tidal carbon dioxide partial stress (Pet CO2 ). Two 3-Tesla (3T) MRI scans were performed on the same visit, with two sq. wave alterations administered per scan. The protocol was repeated on a separate go to with minimum of three days between scanning sessions. Pet CO2 was altered to stimulate adjustments in cerebral vascular reactivity (CVR), while Pet O2 was held fixed. Eleven topics (six females; mean age 26·5 ± 5·7 years) completed the total testing protocol. 0·7). This examine demonstrates Bold sign modifications in response to alterations in Pet CO2 are reproducible each inside- and between-visit MRI scans.
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