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CT > Basic CT Procedures > Flashcards

Basic CT Procedures Flashcards

1
Q

How are axial CT images oriented

A

Like you’re looking at the foot of the patient towards the head

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2
Q

How are coronal images oriented

A

As of the patient were facing the viewer

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3
Q

How is a scout image taken

A

By moving the patient through the scanner while tube is stationary

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4
Q

We adjust scouts based on what

A

Start location
End location
Scan FOV
Display FOV

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5
Q

What is the isocenter

A

The middle of the scan area

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6
Q

Can you adjust scan fov

A

Yes to include anatomy of interest

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7
Q

What is the SFOV for a head

A

32 cm

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8
Q

What is scan FOV for a large body

A

50cm

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9
Q

What is the sfov for a small body or PED

A

25 cm

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10
Q

What is display field of view

A

Determines how much of the scan field of view is reconstructed

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11
Q

Why do we adjust smart mA

A

To maintain adequate exposure

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12
Q

What does reducing pitch do

A

Provides more detail
Increase pt dose
Increase scan time

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13
Q

How is pitch determined

A

According to
Nature of study
& pathological indications

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14
Q

What was the first CT replaced with

A

Pnuemoencephalogram

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15
Q

What are some head CT indications

A

CVA
Tumors
Hematoma
Hydrocephalus

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16
Q

How is the chin in a head CT

A

Tucked

17
Q

Does ICM enter the parenchyma

A

In a normal BBB no

18
Q

What will a hemorrhage look like

A

Bright blood

19
Q

What does hydrocephalus look like

A

Huge ventricles

20
Q

What are discharge instructions

A

Drink plenty of clear fluids for the next 2 days

21
Q

What are some chest pathology

A

Tumors
COPD
Aneurysm
PE
Pneumothorax
Hemothorax

22
Q

What are the 2 sets for chest images

A

Lung window
Mediastinum window

23
Q

What are some abdomen indications

A

Any concerns about the liver , pancreas, kidney, spleen, and adrenal glands

24
Q

What are some pelvis indications

A

Prostatic, cervix, urinary bladder, and ovarian carcinomas

25
Q

How does a patient prep for oral contrast

A

Drink 50 mL 2 hours prior

CT (4 decks)

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