The role of three-dimensional ultrasonographic images in ovarian measurement

The most common type of risk that occurs during the risk-free arbitrage trading is Execution risk. Multi-tasking is not something which is comfortable to all of us and we naturally tend to leave the most of the activities midway or fail in them.

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Exemplifying an execution risk, consider that you are trying to take advantage of the price fluctuation of the shares of ABC company which is trading in two markets, New York stock exchange and European stock exchange. With the hope of getting more profits, you are purchasing a considerable number of shares, but later become aware that you cannot sell the shares in both the exchanges at the same instant. You are fully exposed to risk.

There are many other causes of execution risk in arbitrage such as market competition, miscalculations, and confusion, inexperience, wrong guidance, trend ignorance etc. In the extreme cases, these rare risks might cause you very dear. If there are problems, there are solutions too. Here also, we have some practical solutions to get rid of the remaining risk and help you to really take advantage of arbitrage trading.

Trade under the same conditions: There will be many arbitrageurs competing with you to close the same transaction that you are waiting for. Ensure that you come under the same legislature and Federal Law as they are.

Take a no-delay policy: Delaying even a second will be costly. If you have decided to close, do it and jump to the next. No halt, no lag and make it a continuous process until you close all your transactions.

Let go of the most fluctuating: If one of the assets is giving you a headache by fluctuating more than the others fluctuate, you should either close it first or keep it to be the last. Do not waste seconds by tracking it in the same or in more frequency than the rest.

Polish yourself with smaller shares: Arbitrage is a high speed, high leverage game and you need hands-on experience to move ahead. Try with small shares at first and give finesse to your arbitrage skills.Abstract
To determine whether three-dimensional ultrasonography can increase the ability to evaluate the ovary and follicles, especially in women with polycystic ovary disease (PCOD).

Prospective clinical study.

University hospital endocrine and infertility center.

Sixty-six patients undergoing routine gynecologic evaluation were divided into two groups: the normal control group consisted of 22 patients, and there were 44 patients with PCOD.

Three-dimensional ultrasonography was performed to store and document whole volumes of the ovaries for evaluation.

Three perpendicular planes of bilateral ovaries are rotatable to obtain the largest dimensions. The three-dimensional volume was measured using the trapezoid formula.

The ovaries of the patients with PCOD were larger in size, area, and volume than those of normal controls.

Stroma and volume determinations can be obtained more accurately by three-dimensional images than by traditional ultrasonography. Three-dimensional ultrasonography not only facilitates noninvasive evaluation and volume calculation but also completes the examination in a short time without increasing patient discomfort.

PMID: 9627309
[Indexed for MEDLINE]