Neuronavigation-Guided Transcranial Acoustoelectric Brain Imaging: A new Modality for High Resolution Electrical Brain Mapping.

Objective/background: Although functional magnetic resonance imaging (fMRI) and scalp electroencephalography (EEG) are powerful tools to study the human brain and behavior for many clinical and research applications, they are limited in both resolution and accuracy. Transcranial Acoustoelectric Brain Imaging (tABI) is a new modality that combines focused ultrasound with electrical sensing to map electrical currents at the millimeter and millisecond scales. The aims of this study are to demonstrate the feasibility and assess performance of integrating tABI with a neuronavigation system to map deep dipoles in a head model with a human skull.

Acoustoelectric Time-Reversal for Ultrasound Phase-Aberration Correction.

Acoustoelectric imaging (AEI) is a technique that combines ultrasound (US) with radio frequency recording to detect and map local current source densities. This study demonstrates a new method called acoustoelectric time reversal (AETR), which uses AEI of a small current source to correct for phase aberrations through a skull or other US-aberrating layers with applications to brain imaging and therapy. Simulations conducted at three different US frequencies (0.

Feasibility of photoacoustic-guided teleoperated hysterectomies.

Hysterectomies (i.e., surgical removal of the uterus) are the prevailing solution to treat medical conditions such as uterine cancer, endometriosis, and uterine prolapse.