Lecture 2 - Radiology etc Flashcards
describe how different tissues show up on an x-ray
describe the common views/pros and cons of each for x-rays
chest radography normal PA view
chest radiography normal lateral view
visualization of the lung fields in radiography
visualization of silhuette sign in differnt lobes
*note a silhouette sign is when borders can no longer be visualized radiologically
1) R middle lobe
2) R upper lobe
3) L lower lobe
what values can you get with spirometry, diffusing capacity of the lung for CO, and helium lung volumes?
what are 7 steps for reading an x-ray?
- slides 6-17
1) identify the details
2) evaluate radio-opaque bony structures (intervertebral space, ribs, thorax) - ID over and under exposure and clavicles for proper alignment
3) evaluate lung volumes - count number of ribs!
4) evaluate mediastinal structures - make sure trachea is not shifted
5) evaluation of heart and great vessels - if cardiothoracic ratio of heart to chest width is greater than 1:2, abnormal - cardiophrenic angle
6) evaluation of the hemi-diaphragms - R normall higher than L bc of liver - costophrenic angle
7) evaluation of lung fields and boundaries - lung boundaries normally in contact w chest wall and pleura only visible if abnormal (inflammed) - lung field not typically completely black
define: consolidation and atelectasis
- Consolidation = an area of lung filled with liquid
- Atelectasis = collapsed lung
describe how different tissues show up on an x-ray
describe the common views/pros and cons of each for x-rays
chest radography normal PA view
chest radiography normal lateral view
visualization of the lung fields in radiography
visualization of silhuette sign in differnt lobes
*note a silhouette sign is when borders can no longer be visualized radiologically
1) R middle lobe
2) R upper lobe
3) L lower lobe
what values can you get with spirometry, diffusing capacity of the lung for CO, and helium lung volumes?
