Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy 201 > Radiology > Flashcards

Radiology Flashcards

1
Q

What does radiology play a role in?

A

Radiology plays an invaluable role in the initial

diagnosis and subsequent management of patients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

List the type of imaging techniques and add a few examples.

A 
Basic film interpretation
* X-Ray
Specialized radiological investigation
* Ultrasound
* CT Scans
* MRI Scans
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is X-radiation composed of? X-radiation is a form of..

A

X-radiation (composed of X-rays) is a form

of electromagnetic radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Who discovered X-rays in 1895 and when did this person receive the first Nobel prize?

A

Röntgen discovered X-rays 1895

and received the first Nobel Prize 1901.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Wavelength range of X-rays :

A

10 - 0.01 nm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Why are X-rays used?

A 
X-rays are used to take images
of the inside of an object in diagnostic 
radiography and crystallography
 E.g. Arthritis, pneumonia, bone tumors
and fractures
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What can hard X-rays do?

A

Hard X-rays can penetrate solid objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the equipment typically used for bone x-rays consist of?

A

Equipment typically used for bone x-rays
consists of an x-ray tube suspended over a
table on which the patient lies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What the drawer under the table hold?

A

A drawer under the table holds the x-ray film or

image recording plate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where is a high contrast image formed?

A

High contrast image is formed on silver-impregnated fil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What do dense bone and soft tissue do?

A

Dense bone absorbs much of the radiation
while soft tissue, such as muscle, fat and
organs, allow more of the x-rays to pass
through them.

As a result, bones appear white on the x-ray,
soft tissue shows up in shades of gray and air
appears black.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is fluoroscopy?

A

Fluoroscopy is an imaging technique that uses
x-rays to obtain real-time moving
images of the internal structure
and function of a patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is fluoroscopy augmented with?

A

Fluoroscopy is augmented with a radiocontrast agent

Barium Sulphate Radio-Iodine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How are radio-contrast agents administered?

A

Radio-contrast agents administered
by swallowing or injecting into the
body of the patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is fluoroscopy used for?

A

Fluoroscopy is used to describe the anatomy and
functioning of the blood vessels, the
genitourinary system, or the
gastrointestinal tract (GI tract)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is interventional radiology?

A

Interventional radiology is a subspecialty

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Interventional radiology is a…

A

minimally invasive technique

18
Q

What is interventional radiology used for?

A 
Interventional radiology is used for :
*Diagnostic (e.g. angiogram)
 *Treatment (e.g. angioplasty)
Such as: 
 peripheral vascular disease, renal 
artery stenosis, inferior vena cava 
filter placement, gastrostomy tube 
placements, stents and hepatic 
interventions
19
Q

What is an angiogram?

A

An angiogram is a special form of x-ray that permits the diagnosis of
blockages (occlusions) or narrowings (stenosis) in the arteries of the
body

20
Q

What happens during the angiogram test?

A

During the angiogram test, a tube (catheter) is inserted into an artery at the groin

21
Q

What is injected down the tube and when are x-ray pictures taken?

A

A special radio-opaque dye (contrast medium) is injected down the
tube and x-ray pictures are taken as the solution passes along the
blood vessels.

22
Q

What is an angioplasty?

A

An angioplasty is a procedure where a balloon is passed into your
artery on the end of a tube (catheter) and is inflated (blown up) to treat
a narrowed or blocked artery

23
Q

What does an angioplasty prevent?

A

This technique means that surgery may be avoided in many cases

24
Q

What is a venogram?

A

A venogram is an x-ray test that takes pictures of blood flow
through the veins in a certain area of the body

25
Q

What happens during a venogram?

A

During a venogram, a special dye (contrast material) is put into
your veins so they can be seen clearly on an x-ray picture.

26
Q

What does a venogram look at?

A

A venogram looks at the condition of your veins and the valves in
your veins.

27
Q

Describe the apparatus used in a computer tomography.

A

Ring-shaped apparatus – x-ray tube
opposite a detector → computer
generated cross-sectional image
(tomogram)

28
Q

COMPUTER TOMOGRAPHY[CT] -What are coronal and sagittal images produced by?

A

Coronal and sagittal images are produced by
computer reconstruction
 Such as: sliced images of the skull bone and brain

29
Q

COMPUTER TOMOGRAPHY[CT] - What is the radio-contrast material used for?

A

The radio-contrast material is used to enhances
clarity of the image e.g. abscess in brain outlined well
v/s a tumour

30
Q

What does the spiral multi-detector use?

A

Spiral multi-detector use 16, 64 or 254 detectors →

fine detailed images in quick time and produce multi-detector CT reconstruction

31
Q

What is an ultrasound?

A

An ultrasound is a high-frequency sound wave
used to visualize soft (biological) tissue in the
body in real time

32
Q

In an ultrasound , there is no…

A

ionizing radiation (ultrasound contrasting
agents)
Hence it is very safe in pregnancy and fetal
anatomy

33
Q

What is an ultrasound useful in?

A

An ultrasound is useful in solid organ trauma, tumours, cysts,
soft tissue injury

34
Q

Where can’t an image form in an ultrasound?

A

An ultrasound cannot form an image through air (lungs and bowel
loops) or bone

35
Q

Briefly describe the evolution of the first ultrasound images (2D).

A

The first ultrasound images (2D), however now
3D reconstructions can be observed in real
time, effectively becoming “4D”

36
Q

What do the magnetic resonance imaging give rise to?

A

The magnetic resonance imaging gives rise to a magnetic field around the patient

37
Q

What does the magnetic field excite?

A

The magnetic field excites hydrogen atoms in
water, energized, move out of their field when the
magnet is on

38
Q

When does the magnetic resonance imaging give off a signal?

A

Magnetic resonance imaging gives off a signal when the magnet is off and
hydrogen atom returns

39
Q

When does the contrast between different tissues signal?

A

The contrast between different tissues signals
when the magnet switches on or off gives
different quality signals and that is processed to
for man image

40
Q

What is magnetic resonance imaging very good for?

A

Magnetic resonance imaging is very good for distinguishing all the soft tissues in
the body, from organs to ligaments and, the
different densities of fluids such as water, blood,
pus and infective material

Anatomy 201 (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions