Portable chest radiography is one of the most frequently requested X-ray examinations in hospitals. (Eisenhuber et al., 2012) It is an important diagnostic tool for monitoring and diagnosis of in-patients who are critically ill and unable to transfer to radiology department for radiographic imaging. This is especially pertinent to patients who are in the intensive and critical care units, operating theatres and emergency department. (WHO, 2017) It is also an indispensable tool to evaluate the proper placement of clinical support devices such as chest tubes, endo-tracheal tubes, vascular catheters, and cardiac implanted electronic devices. (Amorosa JK, 2017) The most common position for mobile chest x-ray in the Intensive Care Unit (ICU) and less critical settings is antero-posterior (AP) position. (Kelly…show more content… (ACR, 2017) However when a grid is used, the kilovoltage is greater than 100 kVp. (Grunert JH, et al., 2000) Portable chest radiographs can be obtained with or without an anti-scattered grid. (Mentrup et al. 2014)
Anti-scatter grids play an important role in radiographic imaging. The primary function is to absorb the scatter radiation. This is done in order to increase the image contrast and detail. (Reina Imaging, 2017) Nevertheless, for patients with a body mass index (BMI) clearly above average, image acquisition with the use of a grid is still required. (Uffmann and Schaefer-Prokop, 2009) According to Carroll (2014), the recommended grid practice can be
