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RTE 002 INTRO > Imaging modalities Part 1 > Flashcards

Imaging modalities Part 1 Flashcards

1
Q

also called sonography

A

Ultrasound

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2
Q

It involves exposing part of the body to high-frequency sound waves to produce an image of a particular structure of the body.

A

Ultrasound

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3
Q

captured in real- time, it can show the structure and movement of the bodys internal organs, as well as blood flowing through blood vessels.

A

Ultrasound

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4
Q

consist of a console containing a computer and electronics, a video display screen and a transducer that is used to do the scanning.

A

Ultrasound scanners

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5
Q

is a small hand-held device that resembles a microphone, attached to the scanner by a cord.

A

Transducer

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6
Q

sends out inaudible high frequency sound waves into the body and then listens for the returning echoes from the tissues in the body.

A

Transducer

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7
Q

The ultrasound image is immediately visible on a video display screen that looks like a computer or television monitor.

A

Transducer

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8
Q

The image is created based on the amplitude (strength), frequency and time it takes for the sound signal to return from the area of the patient being examined to the transducer and the type of body structure the sound travels through.

A

Transducer

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9
Q

The essential element of each ultrasound transducer is a

A

piezoelectric crystal

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10
Q

It serves to generate as well as receive ultrasound waves.

A

piezoelectric crystal

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11
Q

Types of Ultrasound Transducers:

A
  • Liner transducer
  • Convex transducer
  • Phased array transducer
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12
Q

the piezoelectric crystal arrangement is linear, the shape of the beam is rectangular, and the near-field resolution is good.

A

linear transducer

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13
Q

The footprint, frequency, and applications of the linear transducer depend on whether the product is for 2D or 3D imaging

A

Linear transducer

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14
Q

an be use for various applications, such as: Vascular examination, Venipuncture, blood vessel visualization, Breast, Thyroid, Tendon.

A

linear transducer for 2D imaging

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15
Q

Can be use for various applications, such as: Breast, Thyroid Arteria carotis of vascular application.

A

linear transducer for 3D imaging

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16
Q

also called the curved transducer because the piezoelectric crystal arrangement is curvilinear.

A

Convex transducer

17
Q

beam shape is convex and the transducer is good for in-depth examinations, even though the image resolution decreases when the depth increases.

A

Convex transducer

18
Q

The footprint, frequency, and applications also depend on whether the product is for 2D or 3D imaging.

A

Convex transducer

19
Q

Can be use for various applications, such as: Abdominal examinations, Diagnosis of organs Transvaginal and transrectal examinations

A

convex transducer for 2D imaging

20
Q

Can be use for abdominal examinations.

A

convex transducer for 3D imaging

21
Q

This transducer is named after the piezoelectric crystal arrangement which is called phased-array and it is the most commonly used crystal Phased Array transducer.

A

Phased Array Transducers

22
Q

Has a small footprint and low frequency (its central frequency is 2Mhz – 7.5Mhz)

A

Phased Array Transducers

23
Q

The beam point is narrow but it expands depending on the applied frequency.

A

Phased Array Transducers

24
Q

The beam shape is almost triangular and the near-field resolution is poor

A

Phased Array Transducers

25
Q

Can be use for various applications, such as: Cardiac examinations, Abdominal examinations and Brain examinations

A

Phased Array Transducers

26
Q

probe that sends and receives the sound waves.

A

Transducer probe

27
Q

computer that does all of the calculations and contains the electrical power supplies for itself and the transducer probe

A

Central processing unit (CPU)

28
Q

changes the amplitude, frequency and duration of the pulses emitted from the transducer probe

A

Transducer pulse controls

29
Q

displays the image from the ultrasound data processed by the CPU

A

Display

30
Q

inputs data and takes measurements from the display

A

Keyboard/cursor

31
Q

stores the acquired images

A

Disk storage device (hard, floppy, CD)

32
Q

prints the image from the displayed data

A

Printer

33
Q

Advantages of Ultrasound

A
  • Mobility
  • Cost-effective
  • patient-friendliness (no radiation)
  • Applied in obstetrics, cardiology, inner medicine, urology

RTE 002 INTRO (13 decks)

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