CT Basic Protocols and scans Flashcards

1
Q

CT Abdo Protocol

A
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.
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2
Q

XAP meaning

A

eXAm Plan

its the protocol.

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3
Q

Recon Interval

A

interval / distance between slices when Reconstrcuted..\\

also known as reconstructed pitch

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4
Q

Varia-area

A

Area that will be scanned. Mapped onto Topo

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5
Q

Dose reduction in CT Fluoro?

A

choose appropriate slice thickness.

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6
Q

CE

A

Contrast Enhanced

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7
Q

Couch speed

A

Linked to pitch mm/rot

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8
Q

Callibrated FOV

A

accurate ositioning allows for smaller FOV.

ss=180mm
s= 240mm
m = 320mm
L = 400mm
LL + 500mm
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9
Q

When would someone possibly use a half/ partial imaing

A

Paedeatric studies

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10
Q

What are MIP’s typically used for?

A

Angio

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11
Q

Volume rendering

A

3D CT : assign a colour to certain HU ranges.

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12
Q

Considerations with oral contrast

A

need to ensure it has been given adequete time to travel through GIT

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13
Q

Type of oral CM

A

Low mol/mm barium sulphate suspensions or non-ionic water soluble solutions

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14
Q

What may a patient experience after a CT exam?

A

White poop if oral contrast

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