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Twenty patients who had undergone free vascularised fibula flap transfers were reviewed to determine the incidence of peri and postoperative complications. The mean follow-up was 3.2 years (0.2-10); 18 grafts were successful, but required 10 re-operations for complications including 5 haematoma evacuations and 3 bone grafts and plates for delayed or(More)
Blood flow detected by Doppler-shift velocimeters may be displayed using frequency analysers such as Spectrascribe (Medishield Corporation, London). To interpret these waveforms and produce rapid reliable diagnosis a digitiser/processor has been constructed. It is based on an Intel 4040 microprocessor and a Summagraphics magnetostrictive digitiser. Software(More)
The appearance of the nose, mouth and nostrils was analysed in two series of unilateral, complete cleft lip patients. A programme was written for use on a BBC microcomputer to measure the symmetry of facial features traced from photographs. Symmetry was measured using one of two methods: determining the area of non-overlap when one side was reflected on the(More)
OBJECTIVE To compare growth, speech, and nasal symmetry outcomes of three methods of hard palate repair. PATIENTS Consecutive available records of children born with unilateral bony complete cleft lip and palate over the period 1972 to 1992. INTERVENTIONS Identical management of lip, nose, alveolus, and soft palate. Hard palate repair by Cuthbert Veau(More)
Objective assessment of the results of cleft lip and nose surgery is necessary to quantify differences between alternative surgical techniques. A previously described method of measuring facial asymmetry has been modified to allow a comparison of differently treated cleft noses (radical nasal correction versus no nasal correction). Standardised, inferior(More)
The ultrasound carotid vessel imager uses a continuous-wave Doppler flow detector on a hand-guided position sensing arm. The directionally separated flow signals are passed through a two channel audiofrequency real-time spectrum analyser to a microprocessor-controlled image memory and display. Transducer position defines memory address; image data (16(More)
Fig. 1 Time-domain process predictable use of this method, but the most fundamental problems relate to the fact that the zero-crossing detector attempts to reduce the Doppler-shift signal to a single voltage which may be displayed as a single-line trace upon an oscilloscope or a chart recorder. If artefact should be present, it may not he evident that this(More)
An automatic 2-channel strain-gauge plethysmograph, based on an absolute resistance measurement technique, will be described in the paper. This device is compact, easy to use, provides inherent self-calibration for any gauge and any length of that gauge, automatically performs the measured cycle, and generates annotated graphical printouts of the(More)
ONE of the basic items of instrumentation now used in vascular laboratories is the directional Doppler velocimeter (McLEOD, 1967). The velocimeter adopted for clinical use within the Noninvasive Angiology Unit at Guy's Hospital is the Sonicaid BV380. A circuit board was designed by the authors to allow both phase and frequency domain processing (COGHLAN and(More)