![]() The lack of adverse events associated with EVDs/CVLs and the strong congruence between maximal MCA CBFv and CTA illustrates the diagnostic utility of the NovaGuide.Įach year the United States has 30,000 cases of subarachnoid hemorrhage (SAH), which is consistent with the global incidence rate and represents a significant cause of stroke-related death and disability 1. 27/48 scans were carried out with CVLs and EVDs present without negative outcomes. ![]() There was significant agreement between the NovaGuide and CTA (Cohen’s Kappa = 0.74) when maximum MCA CBFv ≥ 120 cm/s was the threshold for vasospasm. Safety of NovaGuide acquisition of CBFv was evaluated based on number of complications with central venous lines (CVL) and external ventricular drains (EVD). Mean and maximum middle cerebral artery (MCA) CBFv were obtained from the NovaGuide and the level of agreement between CBFv and computed tomography angiography (CTA) for vasospasm was determined. We retrospectively identified 48 NovaGuide scans conducted on SAH patients. ![]() This investigation evaluated the safety and efficacy of the NovaGuide system in SAH patients in a Neuro ICU. The NovaGuide robotic TCD system attempts to standardize acquisition. However, the accuracy and precision of manually acquired TCD can be operator dependent. SAH patients are monitored using transcranial doppler (TCD) to measure cerebral blood flow velocities (CBFv). Delayed cerebral ischemia (DCI) secondary to vasospasm is a determinate of outcomes following non-traumatic subarachnoid hemorrhage (SAH).
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