Soft Tissue Rad Exam 1 Flashcards
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Which type of radionuclide scanning injects radioactive particles into lungs that get trapped in the capillaries
Particle perfusion scintigraphy
Which radionuclide scanning has a pt inhale the radioactive aerosol
Particle ventilation scintigraphy
What’s the purpose of sonography/ultrasound & what are 3 common occurrences found w/this technique
To differentiate liquids vs solids Pleural effusion (MC), pleural thickening, pneumothorax
What is an indication for bronchography
Bronchiectasis
What is the most utilized imaging for the chest
CT
With CT of the chest, within the mediastinum, what should you differentiate about masses
Cystic or solid
When taking a CT of the lungs, what is something you should always look for
Primary neoplasms
What is a downfall to MRI
Motion
What is the primary purpose for an exam of sputum/specimens obtained by bronchial washings/brushing
Determine if there is a malignancy
During the pathological exam, you take a needle aspiration of:
Pleural fluid
What is the standard 2 view chest series in radiology
PA, lateral
On a PA chest xray, how should the pt breath
Inhale & hold
On a PA chest xray, what is the kVp
High (100-120)
What happens to the apical vessels of lungs (bronchovascular markings) during an upright view w/inspiration
They have little blood flow & may collapse d/t hydrostatic pressure
Pleura of the lungs is not normally visualized on xray, but often can be seen w/this disease
CHF (b/c extracardiac fluid)
How do you know there has been adequate inspiration by the pt while taking an xray
You can clearly visualize the 10th post ribs w/out diaphragm interference
MC benign tumor of diaphragm
Lipoma
Where is the right hemi-diaphragm located in terms of boney landmarks
10 post rib, 7th ant
Where is the left hemi-diaphragm located in terms of boney landmarks
11 post rib, 8th ant
Aortic knob, costophrenic & cardiophrenic angles, diaphragm, & minor/horizontal fissure can be seen on this CXR
PA
The minor/horizontal fissure is only seen on which chest view? Where is it located in terms of bony landmarks
PA chest T8 or 5th ant rib
What are 2 reasons to take a PA chest view w/expiration
Obstruction & pneumothorax
During a lateral chest xray, what is the breathing & kVp
Inspire & hold High kVp (100-120)
Which side is always to the film on a lateral chest xray
Left - to decrease magnification of the heart
What are 3 reasons to take a lateral chest xray
1 locate dz 2. Confirm presence of dz 3. See anything not seen on PA
The retrosternal & retrocardiac clear spaces, hilum, fissures & post sulcus can be seen on which chest view
Lateral
What are causes of an abnormal retrosternal clear space
Arms, anterior mediastinal tumor, aneurysm
What are causes of abnormal retrocardiac clear space
Cardiac enlargement/displacement, tumor, infiltrate
In the hilum, where are the pulmonary arteries in relation to each other
Right is in front, left is left behind
In the hilum, where are the upper bronchi in relation to each other
Right is higher, left is lower
What are 3 causes of increased hilum size
Aneurysm, tumor, lymph adenopathy
Where is the oblique/major fissure located in terms of bony landmarks? Which view can this NOT be seen on
Location: T5 diaphragm Not seen on PA
How must fissures be in relation to the xray beam in order to be seen
Parallel
Which fissure separates the middle & upper lobes of the right lung
Minor/horizontal fissure
Where is the diaphragm located on an xray in terms of bony landmarks
T12 VB
Which takes less fluid to fill: post costophrenic sulcus or costophrenic angles
Post costophrenic sulcus fills faster
Which view is best for pleural effusion? What does this view detect & which side do they lay on
Lateral decubitus - detects fluid movement, lay on side of interest
What is seen on the right ant oblique chest view
Right lung, retrocardiac clear space
What is the purpose of the Rigler Hoffman Sign
Detects enlarged LV
What is the MC accessory lobe seen on xray? Where is this lobe located & what causes it
Azygos, located (right MC) on top of lung & medial azygos vein doesn’t migrate in utero so lobe forms
What sign on the diaphragm is considered a normal variant
Scalloping/eventration
In regards to the answer to the question above, what could be possible causes of this sign
Nerve deficiency, abnormal muscle development
Eventration/scalloping is MC on which hemidiaphragm
Right
Complete eventration is MC on which hemidiaphragm
Left
What is the cause of tenting of the pleura
Atelectasis (MC d/t pneumonia), inflammation occurs followed by fibrosis