Radiodensity Research Paper

There are diverse interdisciplinary relationships in the health care system. Among these relationships include radiology, working in the emergency room, or working in a pharmaceutical company, functioning effectively as a team for best results. The marketing department needs to work together with the development department to ensure the provision of effective services, support and stability. As a medical discipline, Radiology utilizes images, via diverse physical agents and techniques including X-ray, radiography, ultrasound, magnetic resonance imaging (MRI), computed tomography, magnetic fields to diagnose and treat diseases, ( ). Also, professionals make adequate use of intervention radiology (generally minimum invasive) medical procedures, aided by the use of imaging technology to diagnose and treat diseases. ( ).

-They can also show joints, the size and shape of the heart, tissues, and collections of fluid throughout the body.

1895 – X-rays were discovered accidentally by physicist Wilhelm Conrad Rontgen. Rontgen was working on a experiment and testing whether cathode rays could pass through glass. He noticed that a nearby tube emitted fluorescent glow of crystals. The air in the tube was released, high voltage applied, the same tube emitted a fluorescent glow. When Rontgen covered the tube in a heavy black paper, a green light could be seen. He concluded that a new light ray was being broadcast. Rontgen discovered that the light was very powerful and the same ray could pass through human tissue, but not through bones and metal objects. Medical applications were soon to follow. ("History of radiography," )

Because of this, mammography x-ray tubes must be calibrated differently than normal x-ray tubes due to the small differences of linear attenuation coefficients between normal tissue and tumour, shown in Figure 1. Therefore, in order to maximize the diagnosis of abnormalities within the breast, it is essential that the contrast between tissue and tumour within the breast is as high as possible when produced on the x-ray film. One of the ways that this is done is through manipulation of the energy of the x-ray beam. In Figure 1, it can be seen that attenuation differences between fibroglandular and cancerous tissue are highest at very low energies: approximately 10keV to 15keV (Bushberg et al., 2002). Adversely, attenuation differences drop off rapidly at higher Figure 5: Contrast percentage between normal and cancerous tissues within the breast versus energy of the x-ray beam (Bushberg et al., 2002). Figure 5: Contrast percentage between normal and cancerous tissues within the breast versus energy of the x-ray beam (Bushberg et al., 2002). energies: approximately 35keV or greater (Bushberg et al., 2002). Thus, at lower energies, a higher contrast is displayed. Appropriate subject contrast

In nuclear medicine diagnosing techniques, a very small amount of radioactive material is introduced into the body. Because medical isotopes are attracted to specific organs, bones or tissues, the emissions they produce can provide crucial information about a particular type of cancer or disease. Information gathered during a nuclear medicine technique is more comprehensive than other imaging procedures because it describes organ function, not just structure. The result is that many diseases and cancers can be diagnosed much earlier.

Density is an important property of matter because every object has a unique number of density associated within it. It is how we find out out if an item will float or not and the compactness of an object.

X-rays are used to guide tubes or cameras through the body. It is used to look at the heart, lungs, and chest walls. They can also be used to rule out any other conditions that might be causing the weaknesses.

These images call for up to 90% less radiation than with standard film type x-rays. Instead of making use of the traditional silver-oxide x-ray film that must be formulated and then fixed in caustic and ecologically harmful solutions, the new system calls for pictures by way of a small digital sensing unit and it then immediately sends a Image of the tooth on to the video monitor in the treatment room. Therefore, we can easily see your teeth and surrounding components Instantly. Not only does the new digital x-ray do away with the typical wait for x-ray film to be prepared, but it also is highly sensitive, so that patients are exposed to even less radiation than with conventional x-rays.

X-rays have numerous different effects on the tissues of the body, depending on the time of exposure and energy of the X-ray photons. Best contrast between different tissues is when the photon energy is about 30 keV, for diagnostic purposes. Resulting in the photoelectric effect dominating at this energy. The tissues absorb X-rays and electrons are released. The X-ray absorption depends on the number of protons in the nuclei of the atoms encountered. A high number will attenuate the beam, producing a strong x-ray shadow, enabling for a high quality image of

→ An X-ray is an imaging test that uses small amounts of radiation to produce pictures of the organs, tissues, and bones of the body. When focused on the chest, it helps to spot abnormalities or diseases in the lungs.

Density is a physical property of matter. Density can be used to distinguish a different substance

Since then, X-rays have remained the primary technique used to locate embedded material in the body (Vogel & Dootz, 2007). However, X-rays do not provide information as to the biological condition of the tissue surrounding the embedded fragment (Fernandes et al., 2007; Helito et al., 2014). Extensive use of diagnostic X-rays can also lead to an increased risk of cancer later in life. Improvement in technology has decreased dose from plain film radiographs in comparison with decades past. This risk, albeit usually small, must be weighed against the benefit obtained from the information the X-rays

Magnetic resonance imaging (MRI) is a scan used for a medical imaging procedure. With the use of a magnetic field and radio waves, an MRI scan takes pictures of the inside of the patient’s body. An MRI scan is particularly useful when images of soft tissue such as organs and muscles that do not generally appear on x-ray examinations need to be collected. X-rays generally image calcium present in bones, so they are useful to image bones. MRI scans image water as opposed to other diagnostic tools including X-rays or CAT scans. Thus, this makes them useful because every tissue of the body has various amounts of water present. This allows high-resolution pictures of numerous amounts of organs and tissues to be produced particularly of areas that

In DXA the production of photons, based on the use of an X-ray tube (18), leads to shorter imaging times (less than 5 min) with enhanced resolution and improved accuracy than in DPA using a radionuclide source. Like DPA, this technique determines BMD in two dimen¬sions (from an anterior-posterior image). A DXA scanner consists of a mobile X-ray source, an examination table for the patient, and a de¬tection system that detects radiation emerging from the bones being examined. The X-ray source is under the examination table and moves together with the detection system, which is located opposite the X-ray source and over the patient’s body (18).

Early diagnosis provided by its sophisticated technology saves countless patient lives, and without its help, we wouldn’t have been able to develop cures or treatments for many diseases. Its ability to monitor subtle changes in patients that would otherwise be missed by unassisted human eyes is also a hallmark of modern clinical practice.