Objectives: The aim of this study was to investigate if three-dimensional power Doppler (3DPD) ultrasound (US) can detect bacterial cystitis in dogs better than two-dimensional (2D) US. Animals: Six mixed breed dogs Procedures: Ten ml of 0.1% alcoholic solution of salicylic acid was entered into the urinary bladder of six male mixed-breed dogs by catheter. Twenty four hours later, culture sol...

TECHNICAL REPORT – 2013, April Abstract The concept of delay/Doppler altimetry has been under study since the mid 90’s, aiming at reducing the measurement noise and increasing the along-track resolution in comparison with the conventional pulse limited altimetry. This paper introduces a new model for the mean backscattered power waveform acquired by a radar altimeter operating in SAR mode, as w...

We report the first application of high-frequency three-dimensional power Doppler ultrasound imaging in a genetically engineered mouse (GEM) prostate cancer model. We show that the technology sensitively and specifically depicts functional neoangiogenic blood flow because little or no flow is measurable in normal prostate tissue or tumors smaller than 2-3 mm diameter, the neoangiogenesis "switc...

An adaptive power control algorithm is proposed to minimise power control errors at mobile speeds from 0 to 80 km=h in a UMTS system. The proposed algorithm adjusts its power control step size based on a new parameter called consecutive transmit power control ratio. Simulations of the proposed algorithm show that it outperforms fixed-step algorithms without any requirements for additional knowl...

STUDY DESIGN Cross-sectional observational study. OBJECTIVES To investigate the presence of soft tissue hyperemia in plantar fasciitis with power Doppler ultrasound. BACKGROUND Localized hyperemia is an established feature of tendinopathy, suggesting that neurovascular in-growth may contribute to tendon-associated pain in some patients. The presence of abnormal soft tissue vascularity can b...

background: the purpose of the study was to evaluate the role of uterine blood flow parameters measured by uterine artery two-dimensional (2d)-power color doppler (pcd) ultrasound in predicting fertility outcomes in women undergoing ivf-et cycles. methods: in this prospective observational study, a total of 188 infertile women who underwent ivf-et cycles were investigated. uterine artery 2d-pd ...

OBJECTIVE Assessment of the synovium in patients with knee OA is of great potential value for clinical trials. Ultrasonography could provide this but few data exist on its ability to assess synovial response to therapies. The aim of this study was to examine whether US can detect synovial response to IA corticosteroid (IACS) therapy and to explore associations between synovial characteristics a...

Arteriovenous malformation (AVM) is a tangle of various size vessels with arterial and venous histological characteristics but without evidence of an intervening capillary network [1]. Uterine AVM is classified as either congenital or acquired. Definitive diagnosis has been traditionally made by angiography. With the development of color Doppler and power Doppler ultrasound, diagnosis is now ea...

An external-cavity 1560-nm diode laser was frequency doubled in a 3-cm-long periodically poled LiNbO(3) waveguide doubler with 120% W(-1) conversion efficiency. The 780-nm light was used to detect the D(2) transitions of Rb, and the laser frequency was locked to Doppler-broadened lines of Rb. Furthermore, the ~1 microW of second-harmonic power was sufficient for detecting the sub-Doppler lines ...

BACKGROUND AND PURPOSE The use of Doppler ultrasound to detect arterial emboli has major implications for the classification and treatment of stroke. Experimental studies indicate that embolic materials produce different ultrasound signals, depending on their acoustic properties. To examine the possibility of characterizing emboli of different sources in the clinical setting, we compared the em...