Medical imaging

Some examples of these types of imaging are: X-rays, PET scans, CT scans, MRIs and ultrasounds (Boodman). MRI and ultrasounds do not use radiation. Even though people will attempt to avoid radiation, it will build up inside them and it will never leave. Though the technology of radioactive imaging individuals have been able to provide images of the inside the body that have assisted medical professionals avoid exploratory surgery. Different types of radioactive imaging use ionizing radiation…

Principle: By using a scanning device to detect positron (subatomic particles) emitted by the radionuclide in the organ or tissue being examined. A PET scan uses a radioactive drug (tracer) to show this activity. The radioactive drug may be injected, swallowed or inhaled, based on which organ or tissue is being evaluated by the PET scan. Positrons are emitted by a breakdown of the radionuclide then gamma ray is created and the scanner then detects the gamma rays a computer analyses the gamma…

The operator uses the control console to set imaging parameters. The intensity of the x rays is controlled with the milliamperage setting and the energy and intensity of the x rays are controlled with the peak kilovoltage setting. All images displayed on the screen can be saved to a disk, video disk…

interesting that it can provide a picture of bones and inner body parts. Scientists were interested by the demonstration of wavelength shorter than light. This would make new possibilities in physics and would also investigate the structure of matter. Many medical radiographs were made in Europe and the United States within a month of this announcement. The surgeons used this during this time. In 1896, X-rays were used by battlefield physicians and they would locate the bullets in wounded…

In today’s rapidly changing medical environment, echocardiography has proven to be essential. The majority of pediatric cardiologists use echocardiography to some degree in their clinical practices. Over the years, pediatric echocardiography has proven to be an indispensible tool. Two-dimensional echocardiography, with M-mode and color-flow Doppler, had a great affect on pediatric cardiology since the 1980’s in the diagnosis and treatment of congenital heart disease (Noonan, 2004). Recently…

Take a look at the world’s society in this day and age, now notice that there is some sort of technology in every direction. Technology has become an essential part of the human lifestyle. It has evolved from being items that only certain people could use to now being within the hands of almost anyone, even children. Now some may feel like technology is dangerous and that we are becoming zombies to our screens, but technology is overall beneficial than disruptive to the human lifestyle.…

Long gone are the days of doctors performing blind or exploratory surgeries in hopes of discovering an ailment in their patients. The discovery of the x-ray in 1895, by German physicist W.C. Roentgen, was a major contribution to modern medicine (NDT Resource Center). Years after the discovery of the x-ray, the dependency of such increased, “The number of radiographic and fluoroscopic studies skyrocketed from 25 million in 1950 to 293 million in 2006” (Herrmann et al). Due to the uptick and…

archiving or communications systems. They communicate examination results or diagnostic information to referring physicians, patients, or families. Some of the tools they use are medical computed tomography CT or CAT complete stationary unit installation; medical gamma cameras for general use, medical magnetic resonance imaging MRI complete…

Discuss the use of brain imaging technology in investigating the relationship between biology and behaviour The function of this paper is to review, in an unbiased way of brain imaging technologies in investigating the relationship between biology and behaviour. Brain imaging technologies, with their advantages and disadvantages: PET scan/Positron Emission Tomography scan What it is: A PET scan, or Positron Emission Tomography scan is a scan that detects positrons that are emitted from…

vulnerable and can experience a greater increase in risk when being scanned. Some doctors underestimate the dangers CT scans pose to children, where the risk of developing cancer later in life through more exposure is there. Stephen J. Swensen, M.D., medical director at the Mayo Clinic in Rochester, Minn. “If the scan isn’t necessary or emits the wrong dose of radiation, the risks far outweigh the benefits.” More importantly noted, “All too often children are receiving adult-sized doses of…