Paediatric Radiography Essay Example | Topics and Well Written Essays - 750 words

Paediatric Radiography - Essay Example From the diagram, it will be noted that at different ages, there are different anatomical proportions that people possess. This means that the body proportion of an adult is different from a child. In paediatric radiography, this understanding is very important in ensuring that the wrong body parts will not be captured while engaging in radiographic procedures. The differences in anatomical proportion are also necessary when giving protection to various parts of the body. For example, the size of a blockade to be used on the chest of the child cannot be the same for an adult. This is because the differences in proportion imply that it will not be possible to cover out relatively the same areas when using the same dimensions for both. There are a lot of radiographic exposure parameters that must be considered in paediatric radiography. One of these is focal spot size. For paediatric radiography, the advice is that â€Å"the ability of the focal spot to provide the most appropriate exposure time and radiographic voltage selection at a stated focus-to-film distance† should be preferred (Hardy and Boynes, 2003, p. 25). There is also the issue of tube filtration, where the use of high kV techniques is recommended in order to get the shortest exposure times possible. Rooks, Sisler and Burton (1998) also mentioned voltage as another exposure factor, indicating that high voltage can enhance short exposure times, which are needed for paediatric radiographic examinations. Currently, such short exposure times are achieved with the use of high frequency generators (Hardy and Boynes, 2005). It is common knowledge that paediatric radiography requires more radiation protection, even though all forms of radiation protection are necessary in adult radiography. In paediatric protection, the tenderness of body tissues and possibility of cells not being mature enough is the major

Mystery Skull Lab Report Example | Topics and Well Written Essays - 1000 words - 1

Mystery Skull - Lab Report Example The mystery skull has the values of these indices recorded as 65, 23 and 90 respectively. The skulls were first grouped with reference to the index of supra-orbital height and the specimens D, F, G, H, I and B whose scientific names are given in chart 1 were found to the potential identities of the mystery skull. The recorded values for the supra-orbital values were 70, 58, 58, 70, 66 and 70 respectively which were close to the mystery skull’s values of 65. The observation was then narrowed down to the index of nuchal area height and only three specimens (F, G and I) bore a resemblance to our mystery specimen with recorded values of 21, 23 and 12 referenced against the mystery specimen’s value of 23. A reference was then made to the index of the condylar position and we only remained with G and I (Homo erectus and Archaic Homo sapiens respectively). In order to separate the two specimens the non-index characteristics were observed and the physical traits of the specimens that match the ones of the mystery skull #1 were noted. The specimen G has thick eyebrow projection while that is not the case for specimen I. in this case the mystery skull is similar to specimen I. it is also observed that the specimen G has a protruding face when compared to both specimen I and our mystery skull #1. A look at the shape of the eye orbits suggests that our mystery skull is skull I since skull G has square eye orbits while I and the mystery skull both have oval eye orbits. The height of the nasal orbit is also shorter for g when compared to the height of G and the mystery skull #1. The index characteristics; index of supra-orbital height, index of nuchal area height and the index of the condylar position of the mystery skull #2 are recorded in the chart 1 as 71, 37 and 44.