Ch. 6 Ct Exam And Anatomy Part. 1 Flashcards Preview

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Flashcards in Ch. 6 Ct Exam And Anatomy Part. 1 Deck (158)
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1

Indications Ct exam of the head p 7

Trauma, stroke, headache, tumors, endocrine disease, inflammatory disease, and congenital problems

2

Ct exam head _____ slices always required p 7

Transverse

3

Ct exam of head requires coronal and sagital slices for p 7

Internal auditory canals, temporal bones , pituitary, orbits, sinuses and facial bones

4

Ct of head patient enter gantry p 7

Head first supine

5

Two ways obtaining coronal images of head p 7

Patient supine and head first Hyperextended patien head and top gantry tilted 20 degrees

Patient prone and head first resting on chin and gantry tilted back 20 degrees

6

Localizer of head ct is what image? P 7

Lateral

7

Iv contrast for head ct administered ? P 8

Highlight vascular structures of the brain to indicate a disruption of the blood brain barrier

8

Ct exam of brain patient entered gantry p 9

Head first and supine

9

Contrast media not admixtures for exam of brain p9

Cerebral trauma
Suspected atrophy
Hydrocephalus
Dementia

10

Contrast administered for ct of brain p 9

Tumors
Abscesses
Edema
Aneurysm
Headaches and seizures

11

Axial slices of brain acquired from the ______ to _____. P 9

Skull base
Vertex

12

Typical brain slice thickness reconstruction p 9

5mm slices

13

Why thinner slices on ct of brain? P 9

Reduce streaks scanning through posterior fossa and pretrous ridges

14

Routine brain scan technique p 10

300 ma kvp 120

15

Bone window level of head p 11

Width: 2500
Level - 350

16

Posterior fossa window width and level p 11

Width: 200

Level: 40

17

Soft tissue of head window width and level p 11

Width: 100

Level: 30

18

Ct posterior fossa scan ( skull base) p 16

Head first supine scan

Axial slices only

From foramen magnum through the tentorium

19

Posterior fossa scan no contrast medium p 16

Cerebral trauma
Suspected atrophy
Hydrocephalus
Dementia

20

Posterior fossa scan contrast administered p 16

Tumors
Abscesses
Edema
Aneurysms
Headaches
Seizures

21

Posterior fossa scan slice thickness p 16

1.5-5mm

22

Mas for posterior fossa scan p17

300-400 mas

23

Posterior fossa bone detail ww/wl

2500 ww and 350 wl

24

Posterior fossa soft tissue window p 16


Ww 160 and wl 40

25

I nternal auditory canal / temporal bones contrast exam p 18

Hearing loss to,rule out acoustic neuroma and malignant Ottis externa

26

I nternal auditory canal / temporal bones without contrast p 18

Depict temporal bone , mastoiditis, and cholestatoma

27

Instructions for study of I nternal auditory canal / temporal bones p 18

No swallowing

28

Slices thickness of I nternal auditory canal / temporal bones

0.5-2mm

29

I nternal auditory canal / temporal bones exam covers from? P 18

1cm inferior external auditory canal and superiorly petrous bone

30

Mas used for I nternal auditory canal / temporal bones p 19

200-400 mas