ratio p2 2

to increase transmission

What is the purpose of applying ultrasound gel between the probe and skin?

Carbomer

Which ingredient in coupling gel is a white acidic powder with hygroscopic properties?

EDTA

Which ingredient in the coupling media acts as a chelating agent?

Propylene glycol

An ingredient of ultrasound gel that is colorless, viscous liquid with a slightly sweet taste.

Endocavitary probe

A probe specifically designed to fit into natural body orifices is called:

Transesophageal probe

A probe commonly employed in cardiology through the esophagus is:

Detail

Defined as the ability to reproduce very small objects in imaging

Distortion

The unequal magnification of anatomical objects in imaging refers to:

Contrast resolution

The ability to distinguish structures with similar tissue characteristics is called:

Spatial pulse length

The axial resolution depends primarily on:

Frequency increases

Which of the following circumstances does axial resolution improve?

Beam width

The Lateral resolution is determined principally by:

Fresnel zone

The near field of the ultrasound beam is also called the:

Increasing frequency

The nearzone length increases with:

Fraunhofer zone

The region beyond one near zone length is termed:

Vascular structures

Linear probes are especially useful for imaging:

Curvilinear probe

The probe of choice for most abdominal examinations is:

Phased array probe

The probe producing a fanshaped image, commonly used in cardiology, is the:

Phased array probe

Which probe type is widely used in echocardiography?

Linear probe

A probe commonly used for imaging the thyroid and breast in 3D is:

Phased Array Probe / SECTOR PROBE

Which probe is most effective in evaluating pleura and lungs between ribs?

Guide needle

What is the primary use of ultrasound in the field of anesthesiology?

Monitor fetal development

In obstetrics, ultrasound is primarily used to:

Ectopic pregnancy

In gynecology, ultrasound is helpful in identifying:

Measure bladder

In urology, ultrasound may be used to:

length increases with decreasing frequency

The following statements are CORRECT, EXCEPT:

Microconvex probe

What type of probe has a small foot print and is useful in neonatal and pediatrics application?

Produces a fanlike image

The following statements relating to sector probe are INCORRECT, EXCEPT:

Pencil probe

What type of probe is most commonly used to measure blood flow and the speed of sound in blood?

Axial resolution

Refers to the ability to tell that 2 objects, 1 In the near field and 1 in the far field are actually 2 objects and not appear as 1.

Transducer size

The axial resolution is dependent on the following 3 characteristics, ECX:

Increasing the beam

The following statements relating to Lateral Resolution are CORRECT, EXCEPT:

Distortion

Results from the unequal magnification of anatomical objects that lie different distances from the image receptor

Beam

Refers to the width of a pulse as it travels away from the transducer

Curvilinear probe

A type of transducer wherein the beam shape is convex and the transducer is good for indepth examinations such as abdominal structures

Increased through transmission

What type of transmission is caused by an ultrasound pulse travelling an anechoic substance and it is not attenuated?

Gain of acoustic power

The following statements relating to acoustic shadowing are CORRECT, EXCEPT:

Power Doppler

Which Doppler mode is most sensitive to detecting slow flow in tiny vessels?

Ability to show

The main advantage of Color Doppler over Power Doppler is:

Equalize differences

The Time Gain Compensation (TGC) control is used to:

Stores

What is the primary function of the Freeze fame key?

Rayls

Acoustic impedance (Z) is measured in:

Fluidfilled structures

Enhancement through transmission is typically seen in:

lowlevel

Hypoechoic refers to:

Uniform echogenic pattern

Homogeneous texture indicates:

Anechoic,

A simple cyst is described as:

Guiding the cursor

The trackball in ultrasound knobology is primarily used for:

To push

Piezoelectricity is derived from the Greek word “piezo”, which means

Nearzone length increases with decreasing frequency

The following statements are CORRECT, ЕХСЕРТ: