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In recognition of the expanding role of the web as a channel of conducting business, vast investments in web technologies have been witnessed. Using web technologies and their applications enables firms reaching more customers, trading with customers and offering them a smooth purchase transaction. However, firms cannot realize returns on their investments,(More)
We describe a patient in whom pneumocephalus appeared spontaneously, resulting from a communication between the bronchial tree and the thoracic subarachnoid space in association with squamous cell carcinoma of the lung. The communication was demonstrated by myelography and obliterated surgically. A review of the literature is included.
BACKGROUND AND PURPOSE The authors investigated the feasibility and accuracy of intravascular Doppler sonography (IVDS) with a newly developed microprobe. METHODS The known method to determine blood flow velocity by transcutaneous Doppler sonography was transferred to an intravascular usable Doppler probe. With the improved technique, a microprobe(More)
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