By Eric J. Bieber, Franklin D. Loffer
Containing greater than a hundred and fifty illustrations, Hysteroscopy, Resectoscopy, and Endometrial Ablation covers the spectrum of equipment for endometrial ablation. below the aegis of editors Eric Bieber and Franklin Loffer, the bankruptcy authors offer specialist useful suggestions to the major surgeries which are changing into an ever extra vital a part of gynecologic perform. The publication comprises new facts on operative hysteroscopy and the most recent ideas for endometrial ablation, microwave ablation, thermal ablation, and cryo ablation, innovations that aren't but lined through present textbooks. Delineating present surgical strategies, this unique textual content is a necessary instrument for experts during this box.
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Additional resources for Hysteroscopy, Resectoscopy and Endometrial Ablation
The pump may be either mechanical using a peristaltic roller, a bladder compression or centrifugal. The pumps maintain constant intrauterine pressures by varying the distention fluid flow rates. Fluid deficits are calculated either by computing the input/output deficit of the measured volume or measured weight of the fluid medium utilized. Inaccuracies may result from the up to 5% volume error of commercially available fluid containers and/or the leakage of fluid on the operating room floor or surgical drapes 10 .
Bipolar outputs that are intended for coagulation are also provided. The typical generator gives the operator control of the monopolar and bipolar power output. While the operator can control the power setting and the generator voltage (by waveform selection), these values can vary dramatically with the tissue impedance (AC resistance) during cutting and coagulating. Such variations led to the lack of reproducibility in the tissue effects. Microprocessor technology in new generators has enabled control of the waveforms, generator voltage and power output that has not been previously possible.
The higher the S/N ratio, the better the picture. The better singlechip cameras have S/N ratios of around 47 dB compared to S/N ratios of 60+ dB for three-chip cameras. Differences in single-chip camera systems include the camera head and telescopic optics; the color reproduction, tone and tints are essentially the same. Single-chip cameras come in two sizes, the half-inch chip and the two-thirds-inch chip. The latter has increased resolution (450–550 lines) compared to the former (300–450 lines); 600–800 lines of resolution are generated by three-chip cameras.