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Thorax
Ch 9 Anatomy/Positioning
| Question | Answer |
|---|---|
| Which part of the sternum is located at T10? | Xiphoid Process |
| With which part of the sternum does the 1st pair of ribs articulate? | Lateral border of manubrium |
| Which articulation is formed in part with the head of a rib? | costovertebral |
| With which structure do heads of ribs articulate with? | demifacets of T spine |
| Which joint involves the tubercle of a rib? | costotransverse |
| Which radiographic position best demonstrates the sternum projected within the heart shadow? | RAO |
| For the oblique position, that best demonstrates the sternum, the patient should be rotated how many degrees? | 15- 20 degrees |
| The oblique PA (RAO) for the sternum should include which two structures? | jugular notch to xiphoid process |
| Oblique PA sternum has a __ SID; Lateral sternum has a __ SID. | 30"; 72" |
| Where should the top of IR be for the lateral projection of the sternum? | 1.5" above jugular notch |
| To best demonstrate the sternum, the patient should be rotated into the _____ position to image the sternum _____. | RAO; within the heart shadow |
| Which procedure should be used to obtain radiographs of injured anterior ribs Nos. 5 and 6 (upper)? | Patient upright; suspend on inspiration - pushes the diaphragm down |
| What is the best breathing technique for lower ribs? Why? | Suspend of full expiration - will elevate the diaphragm |
| Where should the top border of the IR be positioned for the PA projection to demonstrate ribs above diaphragm? | 1.5" above shoulders |
| For AP ribs below the diaphragm, how should the IR be positioned? | Level of iliac crest |
| Which projection best demonstrates the axillary portion of ribs? | AP oblique |
| R upper Anterior = | inspiration PA/LAO |
| R lower Posterior = | expiration AP/RPO |
| R lower Anterior = | expiration PA/LAO |
| R upper Posterior = | inspiration AP/RPO |
| L upper anterior = | inspiration PA/RAO |
| L lower posterior= | expiration AP/LPO |
| L lower anterior = | expiration PA/RAO |
| L upper Posterior = | inspiration AP/LPO |
| Bilateral Posterior Upper Ribs = | inspiration AP/RPO+LPO |
| Bilateral Anterior Upper Ribs = | inspiration PA/RAO+LAO |
| Bilateral Posterior Lower Ribs = | inspiration AP transverse/RPO+LPO |
| Bilateral ANterior Lower RIbs = | expiration AP transverse/RAO+LAO |