CT Basic Protocols and scans Flashcards
CT Abdo Protocol
Patient prepped with oral contrast? 2mm scan PV phase Diaphragm to pube symph 50 mls of CM @ 3ml/s Recok axial and coronols 5@5 Soft tissue Lung bone saggis if hx of ca.
XAP meaning
eXAm Plan
its the protocol.
Recon Interval
interval / distance between slices when Reconstrcuted..\\
also known as reconstructed pitch
Varia-area
Area that will be scanned. Mapped onto Topo
Dose reduction in CT Fluoro?
choose appropriate slice thickness.
CE
Contrast Enhanced
Couch speed
Linked to pitch mm/rot
Callibrated FOV
accurate ositioning allows for smaller FOV.
ss=180mm s= 240mm m = 320mm L = 400mm LL + 500mm
When would someone possibly use a half/ partial imaing
Paedeatric studies
What are MIP’s typically used for?
Angio
Volume rendering
3D CT : assign a colour to certain HU ranges.
Considerations with oral contrast
need to ensure it has been given adequete time to travel through GIT
Type of oral CM
Low mol/mm barium sulphate suspensions or non-ionic water soluble solutions
What may a patient experience after a CT exam?
White poop if oral contrast