Comparative Study
Transcranial Doppler ultrasonography as a screening technique for detection of a patent foramen ovale before surgery in the sitting position.
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Comparative Study
Transcranial Doppler ultrasonography should it be the first choice for persistent foramen ovale screening?
Cardiovasc Ultrasoun. 2014 Jan 1;12:16.
Comparative Study
Transcranial Doppler detection of venous-to-arterial circulation shunts: criteria for patent foramen ovale.
J Clin Ultrasound. 2009 Jun 1;37(5):276-80.