RoBotic TCD Ultrasound BubbLe Study Compared to Transthoracic Echocardiography for Detection of Right to Left Shunt

Inclusion Criteria

• •1. Subject 18 years of age and older.
• •2. Subject presents with a clinical condition characterized by neurological signs and symptoms that, in the opinion of the investigator, include embolic stroke or transient ischemic attack (TIA) in the differential diagnosis.
• •3. Scheduled for a transthoracic echocardiograph (TTE) study with agitated saline contrast (bubble study) per standard of care within ±30 days of informed consent.
• •4. Subject is able to successfully perform a Valsalva Maneuver (VM).
• •5. Subject or Legally Authorized Representative has the ability to provide informed consent and comply with the protocol.
• •1. Subject 18 years of age and older.
• •2. Subject presents with a clinical condition characterized by neurological signs and symptoms that, in the opinion of the investigator, include embolic stroke or TIA in the differential diagnosis.
• •3. Scheduled for a transesophageal echocardiograph (TEE) study with agitated saline contrast (bubble study) per standard of care within ±30 days of informed consent.
• •4. Subject is able to successfully perform a Valsalva Maneuver (VM).
• •5. Subject or Legally Authorized Representative has the ability to provide informed consent and comply with the protocol.