CPET plus transcranial Doppler ultrasound

[SarahTee]

I think I read that Dr Novak and Dr Systrom are doing some work together, so I was just thinking it would be interesting if Dr S could add transcranial Doppler testing to his iCPET studies, providing that there is room on the patient’s head for another piece of apparatus. And that the ultrasound can work on someone cycling (or maybe just before and after the exercise part).

 

[SarahTee]

And I found this nice quote from Dr Rowe (was used in a Stat Health press release):

Cerebral blood flow (CBF) is the critical missing vital sign – poor CBF is the cause of common orthostatic symptoms such as dizziness and brain fog. My Dutch colleagues have measured this with ultrasound on over a thousand patients. However, it’s not easy to measure CBF, so most clinics approximate using secondary metrics of heart rate and blood pressure, which often mislead. Unfortunately, this frequently leads to the wrong conclusion that the symptoms are just psychological, when in fact, there are physiological abnormalities.