Intro To MSK Imaging Flashcards
One needs to be what when selecting modality for imaging?
Judicious (use good judgement)
What is the primary indication for radiograph (X-rays)?
Looking at high density structure such as bone measurements/breaks or foreign objects
What are pros for X rays?
Very fast, cheap, portable (first line)
What are some iodine IV contrast risks?
Processing by the kidneys can cause injury to them
What are some pros for CTs?
Affordable, quick (for traumas), 3D image with good resolution
What are some cons for using CT’s?
Relatively high risk of radiation
If used contrast can damage kidneys
What are some pros for MRI?
No ionizing radiation
Highest regulation, can differentiate soft tissue (i.e. tumors)
What are some cons for MRIs?
Expensive and slow/time consuming
Difficult for claustrophobic patients
Cannot use in pts with metal implants (i.e. cardiac pacemaker, metal holding a fracture)
What are some pros for ultrasound?
Cheap, fast, portable and no ionizing radiation
What are some cons for ultrasound?
Not able to visualize structures behind bone (waves blocked) and bigger anechoic structures (waves scatter)
What is a con for Xrays?
Needs multiple views
What are the indications for fluoroscopy?
Procedures
What are some pros for fluoroscopy?
Live action
What are the indications for digital subtraction angiography (DSA)?
Blood vessels
What are the pros for DSA?
Removes boney structures in the image
