Anatomy 1 - Thorax radiology

drraythe's version from 2015-04-18 17:13

Section 1

Question Answer
How should VD/DV and lateral films be placed on viewing screen DV/VD = right side to your left and Lateral = cranial to your left
What does R or L indicate on Lateral trunk, DV/VD, one limb filmsLateral = side on cassette, DV/VD = Side of animal, Limb = limb in film
How are radiographic films evaluated for rotationLateral = costochondral junctions and should joints same level, DV/VD sternum and spinal cord superimposed
What structure is used to tell an expiratory from an inspiratory film Position of diaphragm
What is the cranial limit of the abdomen Diaphragm
Can you visualize the sides of the diaphragmCranial contrasts with lungs, Caudal = no with water densities
What is the junction between the two crura Intercrural cleft

Section 2

Question Answer
What are the mediastinal structures usually seen in a lateral viewTrachea, aorta, heart in pericardium, caudal vena cava
What mediastinal structures can be seen in the VD viewHeart in pericardium, caudal vena cava, left edge of descending aorta
Is the esophagus usually visible on radiographNo only if swallowed air or contrast material
What is the dark thick line in the lateral radiograph of the cranial mediastinum Trachea
What is the dark oval over the heart base in lateral radiographTracheal bifurcation = carina
The trachea normally makes a _______ angle to the vertebral column in a lateral view15 degree
Name the dilation of caudal cervical and thoracic esophagusmegaesophagus
Which way does a megaesophagus displace the trachea and heart Ventrally
What is the line caused by air in a megaesophagus and air in the trachea contrasting the adjacent walls of the two structurestracheal-esophageal stripe
What is the name for the VD appearance of a megesophagus as it passes caudally to the diaphragm Esophageal cone

Section 3

Question Answer
What are the 2 continuations of the trachea into the lungs Main stem bronchi or primary bronchi
What is the most ventral (hanging down) of the bronchi Right middle bronchus
What are the normal longitudinal water densities in the lungs Pulmonary vessels, not bronchi
What is a lobar bronchus and associated lobar pulmonary artery vein Pulmonary triad
What is the normal relative size of the artery and vein of a pulmonary triad Same size
Veins are always _______ and _____ (______) to the arteries of pulmonary in the lateral and DV views respectivelyVentral and central (medial)
In the DV/VD, what is the position of the lobar arteries to the caudal lungs 4 and 8 o'clock positions
what conditions will result in visible lung fissures (lobar pattern)Collapsed lungs or pleural fluid and pleural thickenings

Section 4

Question Answer
How many left lung lobes are the anatomically and radiographically?Anatomically = 2 radiographically = 3
The cranial lobe of the ______ lung is seen in the front of the cranial lobe of the _______ lung on a lateral view as a separate round air filled structureLeft, Right
What is located in the normal pleural spaceOnly a little fluid
What is the cranial extent of the pleural cavity Pleural cupula
The pleural cupula normally extends cranially past the _______ ______First rib
What is located between the vessels of the lungsInterstitium, parenchyma
For what should the parenchyma of the lungs be evaluatedIncrease or decrease opacity

Section 5

Question Answer
Why dont you see the chambers of the heart in survey radiographsHeart is muscle, chambers fill with blood = both water densities
How do you evaluate the heartBorders or silhouette