In this study, the effect of ultrasound irradiation on the flux recovery and fouling mitigation for the membranes made of the polysulfone by the phase inversion method were investigated. Two ultrasound irradiation regimes, including inside and outside the module, were chosen for this study. The experiments were conducted to investigate the effect of ultrasound irradiation on the membrane struct...

A nondestructive imaging method, scanning near-field ultrasound holography (SNFUH), has been developed that provides depth information as well as spatial resolution at the 10- to 100-nanometer scale. In SNFUH, the phase and amplitude of the scattered specimen ultrasound wave, reflected in perturbation to the surface acoustic standing wave, are mapped with a scanning probe microscopy platform to...

This work deals with the use of speckle information contained in 2D B-mode ultrasound images to control the displacement of a robotized ultrasound probe with a visual servoing control scheme. The objective is to automatically synchronize the displacement of a conventional 2D ultrasound probe held by a medical robot in such a way to stabilize the image of a moving soft tissue. Such a workable me...

Intraoperative ultrasound is an imaging modality frequently used to provide delineation of tissue boundaries. This paper proposes a simulation platform that enables rehearsal of patient-specific deformable ultrasound scanning in real-time, using preoperative CT as the data source. The simulation platform was implemented within the GPUaccelerated NVIDIA FleX position-based dynamics framework. Th...

Transrectal electrical impedance tomography (TREIT) has been proposed as an adjunct modality for enhancing standard clinical ultrasound (US) imaging of the prostate. The proposed TREIT probe has an array of electrodes adhered to the surface of a cylindrical US probe that is introduced inside of the imaging volume. Reconstructing TREIT images in the open-domain geometry established with this tec...

Endometriosis is a common benign gynecologic disorder, defined by endometrial glands and stroma outside of the endometrial cavity. The three primary types of endometriosis are superficial peritoneal lesions, ovarian endometriomas, and deep infiltrating endometriosis (DIE).Although laparoscopy continues to be the gold standard for the diagnosis of endometriosis, transvaginal ultrasonography show...

Hole-filling in ultrasound volume reconstruction using freehand three-dimensional ultrasound estimates the values for empty voxels from the unallocated voxels in the Bin-filling process due to inadequate sampling in the acquisition process. Olympic operator, as a neighbourhood averaging filter, can be used to estimate the empty voxel. However, this method needs improvement to generate a closer ...

Medical ultrasound (US) systems are widely used for the diagnosis of internal tissues. However, there challenges associated with acquiring and interpreting US images, such as incorrect probe placement limited available spatial information. In this study, we expand capabilities medical imaging using a robotic framework high level autonomy. A 3D camera is to capture surface an anthropomorphic pha...