Microbubble displacement due to the primary radiation force has been observed in the focal region of single-element and array probes. This effect has been harnessed to increase the contact between microbubbles and targeted endothelium for drug delivery and ultrasound molecular imaging. In this study, microbubble displacements associated with plane-wave (PW) transmission (TX) are investigated and compared to those obtained in focused-wave (FW) TX over a range of pulse repetition frequencies (PRF), burst lengths and peak negative pressures (PNP). In PW mode, displacements on the order of 10 μm/pulse were measured when transmitting 4 MHz pulses with PNP=200 kPa and burst 10 μs long.
A Study of Radiation Force Effects in Plane-Wave Transmission Mode / Guidi, Francesco; Supponen, Outi; Upadhyay, Awaneesh; Vos, Hendrik J.; Borden, Mark; Tortoli, Piero. - ELETTRONICO. - 2018:(2018), pp. 1-4. (Intervento presentato al convegno 2018 IEEE International Ultrasonics Symposium, IUS 2018 tenutosi a Kobe, Japan nel 2018) [10.1109/ULTSYM.2018.8579828].
A Study of Radiation Force Effects in Plane-Wave Transmission Mode
Guidi, Francesco
Membro del Collaboration Group
;Tortoli, Piero
Supervision
2018
Abstract
Microbubble displacement due to the primary radiation force has been observed in the focal region of single-element and array probes. This effect has been harnessed to increase the contact between microbubbles and targeted endothelium for drug delivery and ultrasound molecular imaging. In this study, microbubble displacements associated with plane-wave (PW) transmission (TX) are investigated and compared to those obtained in focused-wave (FW) TX over a range of pulse repetition frequencies (PRF), burst lengths and peak negative pressures (PNP). In PW mode, displacements on the order of 10 μm/pulse were measured when transmitting 4 MHz pulses with PNP=200 kPa and burst 10 μs long.
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
