MIRA2004 Study Guide - Quiz Guide: Suprasternal Notch, Thoracic Vertebrae, Xiphoid Process

• School: Curtin University
• Department: Medical Imaging, Radiology & Radiography
• Course: MIRA2004
• Professor: Yasas Botenne

Document Summary

5cm above the shoulders: patients head on table or small cushion. Centering: cr perpendicular to ir, center midway between sternal notch and xiphisternum (t6/7) Collimation: upper and lower borders to ir margins, lateral margins 10-15cm wide. Exposure: 77-80 kvp, 10-12 mas, large focal spot. Centering: cr is perpendicular to long axis of thoracic spine, angle might be needed, center to level of t7/inferior border of scapula/mid-axillary area. Collimation: open to include c7 (prominent one), open as long as possible, open lateral margins to 13-15 cm. Exposure: 75-85 kvp, 45-50 mas, with breathing technique, low ma and 3-4 seconds of exposure i. e. bring the ma down. Breathing: breathing technique long exposure time of 3-4 seconds, bring the ma down, so the mas stays the same. This is to ensure that the ribs do not obscure the image: suspended respiration. Centering: cr perpendicular to ir, center to level of lower costal margin (l3) Collimation: upper and lower borders as long as possible.