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Anatomical Sciences 1 > Lecture 2 > Flashcards

Lecture 2 Flashcards

1
Q

What kind of image is this

A

CT scan

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2
Q

What kind of image is this

A

X-Ray

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3
Q

What are the transmission type images

A

X-Ray, CT

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4
Q

What is the emission type

A

MRI

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5
Q

What is the reflective type of image

A

Ultrasound

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6
Q

What is this picture from

A

MRI

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7
Q

What kind of image is this

A

Ultrasound

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8
Q

Bright white bone is seen in what 2 kinds of images

A

Ct, X-Ray

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9
Q

What kind of image gives the most detail on soft tissue

A

MRI

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10
Q

On an MRI bone is _____

A

Dark

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11
Q

What may be used for transmission type to aid visual imagery

A

Contrast

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12
Q

What does using contrast do with X-Rays & CT’s?

A

Improves images of hollow spaces

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13
Q

Transmission types are what

A

Beams of high-energy photons that are transmitted through body structure

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14
Q

In an X-Ray density differences are seen as

A

Shades of gray

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15
Q

In an X-Ray & CT-higher density is seen as what color

A

White

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16
Q

In an X-Ray & CT- lower density (radio-translucent) is seen as what color

A

Black

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17
Q

A CT density is measured on what scale

A

Hounsfield scale

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18
Q

How does an MRI work

A

Energy of hydrogen protons in a strong magnetic field gets detected

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19
Q

Modality?
View?

A

CT, Axial

20
Q

Modality?
View?

A

CT, coronal

21
Q

Modality?

A

X-Ray

22
Q

What is angiography

A

Imaging of vasculature

23
Q

How do you achieve angiography

A

With transmission OR emission techniques

24
Q

What is an arteriogram

A

Angiography of arteries

25
Q

How do you get a standard angiogram

A

X-Ray

26
Q

What determines the image seen on an ultrasound screen

A

Echogenicity of tissue

27
Q

What is echogenicity in ultrasounds

A

The amount of ultrasound reflection by a tissue (relative to surrounding tissues)

28
Q

What is the color scale of ultrasounds

A

Scale from white- black

29
Q

What type of tissue is bright white on an ultrasound

A

(dense/stiff objects)
-Bone, dense connective tissue, fat

30
Q

Bright white is considered what on an ultrasound

A

Hyperechoic

31
Q

Medium gray is considered what on an ultrasound

A

Isoechoic

32
Q

What tissues are considered isoechoic on an ultrasound

A

Average density /stiffness- liver/spleen

33
Q

Dark gray is considered what on an ultrasound

A

Hypoechoic

34
Q

What tissues are considered hypoechoic on an ultrasound

A

Low density/ stiffness- nerves, skeletal muscle, kidney cortex

35
Q

Black is considered what on an ultrasound

A

Anechoic

36
Q

Anechoic is indicative of what kind of structures

A

Fluid filled structures (shadows)- Vessels, csts, bladder

37
Q

Name 3 kinds of ultrasound probes

A

Linear array probe, curved array probe, phased array probe

38
Q

What is the high frequency array probe

A

Linear array probe

39
Q

2 characteristics of a high frequency array probe

A

Good image detail, poor penetration

40
Q

Linear array probes are used for what kind of exams

A

Shallow (just below skin surface)

41
Q

Name 4 exams a linear array probe is used for

A

Ocular, carotid, carpal tunnel, MSK

42
Q

What are the 2 kinds of low frequency array probes

A

Curved (curvilinear) and phased array probe

43
Q

Low frequency transducers are good for what

A

Modest image detail, good penetration

44
Q

Curved (curvilinear) array probes are used for what kind of exams

A

Abdominal exams (liver, gallbladder, kidney)

45
Q

Phased array probes are used for what kind of exams & what are examples

A

Intercostal exams- Heart/ lungs

Anatomical Sciences 1 (20 decks)

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