Abstract: Systems and methods for performing intelligent ultrasound data acquisition with a wearable ultrasound probe having electronics distributed between a patient-worn probe transducer assembly and a patient-worn probe controller assembly are provided. The wearable ultrasound probe includes a patient-worn probe transducer assembly including transducer elements disposed in a first housing. The transducer elements are configured to transmit ultrasound beams and convert received echoes to electrical signals in response to control signals. The wearable ultrasound probe includes a patient-worn probe controller assembly including at least one control processor disposed in a second housing. The at least one control processor is communicatively coupled to a connected device. The at least one control processor is communicatively coupled to the patient-worn probe transducer assembly via a wired connection.

Abstract: An ultrasound imaging system and method for determining a measurement of an optic nerve sheath are provided. The ultrasound imaging system and method may include controlling an ultrasound probe to acquire three-dimensional (3D) ultrasound data of the optic nerve sheath. The ultrasound imaging system and method may include determining the measurement of the optic nerve sheath based on the 3D ultrasound data. The ultrasound imaging system and method may include controlling the display to display information related to the measurement of the optic nerve sheath.

Abstract: A technique is provided for computing or monitoring blood viscosity. The technique includes measuring a cross sectional area of a arterial segment and a volumetric flow rate of blood flowing through the arterial segment at two or more locations, estimating a compliance transfer function from blood measurements to scale the arterial cross sectional area into a pressure waveform, deriving a transmission line model of the arterial segment based on the cross sectional area, as scaled by the compliance transfer function, of the arterial segment at the two or more locations and the volumetric flow rate of blood at the two or more locations. The technique also includes computing the blood viscosity based on the transmission line model.

Abstract: Ultrasound is used to provide input data for a blood pressure estimation scheme. The use of transcutaneous ultrasound provides arterial lumen area and pulse wave velocity information. In addition, ultrasound measurements are taken in such a way that all the data describes a single, uniform arterial segment. Therefore a computed area relates only to the arterial blood volume present. Also, the measured pulse wave velocity is directly related to the mechanical properties of the segment of elastic tube (artery) for which the blood volume is being measured. In a patient monitoring application, the operator of the ultrasound device is eliminated through the use of software that automatically locates the artery in the ultrasound data, e.g., using known edge detection techniques. Autonomous operation of the ultrasound system allows it to report blood pressure and blood flow traces to the clinical users without those users having to interpret an ultrasound image or operate an ultrasound imaging device.

Abstract: Ultrasound is used to provide input data for a blood pressure estimation scheme. The use of transcutaneous ultrasound provides arterial lumen area and pulse wave velocity information. In addition, ultrasound measurements are taken in such a way that all the data describes a single, uniform arterial segment. Therefore a computed area relates only to the arterial blood volume present. Also, the measured pulse wave velocity is directly related to the mechanical properties of the segment of elastic tube (artery) for which the blood volume is being measured. In a patient monitoring application, the operator of the ultrasound device is eliminated through the use of software that automatically locates the artery in the ultrasound data, e.g., using known edge detection techniques. Autonomous operation of the ultrasound system allows it to report blood pressure and blood flow traces to the clinical users without those users having to interpret an ultrasound image or operate an ultrasound imaging device.