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Objective: To evaluate the relationship between uterine Doppler flow and endometrial and subendometrial blood flows during stimulated and natural cycles. Design: A prospective observational study. Setting: A tertiary-assisted reproduction unit. Patient(s): Infertile patients undergoing IVF treatment. Interventions: A three-dimensional ultrasound examination with power Doppler was performed on the day of egg retrieval in stimulated cycles and the day after the LH surge in natural cycles. Main Outcome Measure(s): Pulsatility and resistance indices of uterine vessels, and the vascularization, flow, and vascularization flow indices of endometrial and subendometrial regions. Result(s): Uterine pulsatility and resistance indices were negatively correlated with subendometrial vascularization, flow, and vascularization flow indices in both stimulated and natural cycles, whereas uterine resistance index was negatively correlated with endometrial vascularization and flow indices in natural cycles only. Subendometrial vascularization and vascularization flow indices were significantly lower in patients with an uterine resistance index > or =0.95 than those with an uterine resistance index <0.95. Conclusion(s): Uterine blood flow is a poor reflection of subendometrial blood flow during stimulated and natural cycles, and its measurement cannot reflect endometrial blood flow during stimulated cycles. [ABSTRACT FROM AUTHOR]

We report here the first successful synthesis of planar triphenylborane 1 with the phenyl groups bridged by oxygen and nitrogen atoms via double nucleophilic aromatic substitution reaction. The hetero atom-bridged 1 has excellent planarity. Its structural and photophysical properties are tunable by altering the bridging atoms. [ABSTRACT FROM AUTHOR]

The article presents a case study of a 61-year-old woman who has been treated for endometrial carcinoma. She developed metastatic pulmonary disease after three years. She had a large right posterior lobe lesion which was suspected for metastatic central nervous system(CNS) disease. However, the woman was diagnosed of cerebral nocardia following the neurosurgical resection of the lesion and infectious disease consultation.

To achieve endoscopic procedures more safely and less invasively, an operative strategy with ultrasound-assisted neuroendoscopic surgery is described. The improvement in the endoscope unit is that endoscopic viewing can be stopped on the display, anytime we choose and simultaneously visualize the ongoing view on the same display.The ultrasound unit, using a miniature Doppler probe, is to able to detect even invisible vessels in real-time, easily and non-invasively. The information from both units can be switched intraoperatively, whenever required. [ABSTRACT FROM AUTHOR]