How to Order and Interpret Radiology Studies
How to Order and Interpret Radiology Studies
How to Order and Interpret Radiology Studies
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Plain Film X-Ray X<br />
Radiography<br />
Advantages<br />
– Inexpensive<br />
– Readily available<br />
– Excellent spatial resolution<br />
– “Real-time” availability as<br />
fluoroscopy<br />
Limitations<br />
– Two-dimensional<br />
Need > two orthogonal views<br />
– Relatively poor soft tissue<br />
contrast resolution<br />
Useful for radio-opaque<br />
opaque<br />
foreign bodies<br />
Useful if emphysema<br />
or free air present<br />
– Ionizing radiation exposure<br />
Plain Film X-Ray X<br />
Radiography<br />
– Contraindications<br />
Pregnancy<br />
– More of concern for<br />
L-spine & pelvis XR<br />
– Minimal radiation<br />
exposure <strong>to</strong> fetus<br />
with shielding when<br />
imaging other areas<br />
Computed Tomography<br />
CT uses an array of x-raysx<br />
X-ray beams directed at several<br />
different angles<br />
Processed by computer <strong>to</strong><br />
produce cross sectional images<br />
Findings are described as<br />
radio-opaque opaque or radio-lucent<br />
329
Change language