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European Radiology Experimental
Fig. 8 | European Radiology Experimental

Fig. 8

From: Respiratory level tracking with visual biofeedback for consistent breath-hold level with potential application in image-guided interventions

Fig. 8

Respiratory level with feedback. Respiratory level of a volunteer (F4) in the prone position, with visual feedback. Red line is the initial level of breath-hold. Volunteer was asked to return to the same respiratory level every 30 s with the aid of visual biofeedback and maintain breath-hold for a couple of s, indicated by the short horizontal periods

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