The “tennis racket” sign on a chest radiograph
نویسندگان
چکیده
منابع مشابه
Chilaiditi Sign: Rare Incidental Finding on Chest Radiograph.
A 68-year-old male with a history of prostate cancer presented with a two-day history of fever and left flank pain. Vital signs included a temperature of 39.4 degrees Celsius with 93% oxygen saturation and heart rate of 112 beats per minute. An upright chest radiograph showed concern for free intraperitoneal air (Figure) with a white blood cell count of 17.3. A computed tomography of the abdome...
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The chest radiograph accounts for a very significant proportion of imaging throughout the world. It often represents the first imaging step, not only in diseases that focus on the cardiovascular and respiratory systems, but in systemic illness. For this reason, its ubiquity can be beguiling. There is an inclination to feel that because one grows up with the chest radiograph, there must be an in...
متن کاملMeasuring the inertial properties of a tennis racket
Simple and bifilar pendulum were used to measure the mass moments of inertia of three tennis rackets. The pendulum setups were filmed using an off-the-shelf camcorder, with a stopwatch in view to provide timing data. The measurement accuracy was assessed using calibration rods of known mass moment of inertia. The simple pendulum method was found to be most accurate (<1.0 % difference to theoret...
متن کاملInfluence of racket properties on injuries and performance in tennis.
Racket properties may affect tennis elbow development. Shock and vibration to the arm is influenced by the location of ball impacts on the racket head, racket stiffness, and grip force. Beginners experience increased arm loads, and they hit the ball lower on the racket head. Tennis rackets behave differently during actual play compared with the performance predicted by physics.
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ژورنال
عنوان ژورنال: Annals of Saudi Medicine
سال: 2016
ISSN: 0256-4947,0975-4466
DOI: 10.5144/0256-4947.2016.152