Types of probes

What are Linear probes used in?

breast,thyroid,arteria carotis of vascular application

The piezoelectric crystal arrangement is linear the shape of the beam is rectangular and the near field resolution is good

Linear probes

What is the beam shape of a linear probe?

Rectangular

What type of crystal arrangement does a linear probe use for 2D imaging

A linear arrangement of piezoelectric crystals

How is near-field/Fresnel-area resolution with a linear probe?

Good

What is the typical footprint of a linear probe?

Wide foot print (3-4 inches)

What is the frequency range of a linear probe for 2D imaging?

2.5-12 MHz

Why can a broadband linear transducer be used for both deep and superficial organs?

Because it has a broad frequency range of 2.5–12 MHz.

What is a major characteristic of a linear probe?

It has a wide footprint and rectangular beam.

What skin and soft-tissue conditions can be examined using a linear probe?

Abscesses and foreign bodies.

What musculoskeletal structures can be examined using a linear probe?

Tendons,bones, and muscles

Can a linear probe be used for eye examinations?

True

Can a linear probe be used for testicular examinations?

True

In what type of patient can a linear probe be used to examine appendicitis?

Thin patients

What is the frequency range of a linear probe for 3D imaging?

7.5-11 MHz

What endocrine organ can be examined using a linear probe for 3D imaging?

Thyroid

What type of ultrasound frequency does a curvilinear probe use for 2D imaging?

Lower-frequency ultrasound.

What is the advantage of using lower frequencies in a curvilinear probe?

It allows deeper penetration, but with lower resolution.

What is the beam shape of a curvilinear probe?

Convex and wide

What type of footprint does a curvilinear probe have?

Wide foot print

What is the frequency range of a curvilinear probe for 2D imaging?

2.5-7.5 MHz

What is the main advantage of the curvilinear probe compared with a high-frequency probe?

Greater penetration although resolution is lowe

What is the frequency range of a curvilinear probe for 3D imaging?

3.5-6.5 MHz

What examination commonly uses a curvilinear probe?

Abdominal examinations

What distinguishes a micro-convex probe from a regular curvilinear probe?

Smaller footprint

What patient populations are micro-convex probes useful for?

Neonatal and pediatric patients

What are the three major applications listed for a micro-convex probe?

Cardiac, veterinary, and neonatal/pediatric applications.

What is another name fo r the phased array probe?

Sector probe

What type of image does a phased array probe produce?

Fan like image

how does the beam of a phased array probe change with depth?

it is narrow as it leaves the transducer and increases with depth

Why is it called a phased array probe?

It is named after the piezoelectric crystal arrangement, called a phased array.

What type of footprint does a phased array probe have?

Small foot print

What is the frequency range of a phased array probe?

2-7.5 MHz

What is the most common use of a phased array probe?

Cardiac imaging

What other structures can be examined using a phased array probe?

luings plera between ribs and small spaces

What are endocavitary probes designed to do?

They are designed to fit into specific body orifices.

What type of footprint does an endocavitary probe have?

small footprint

What is the frequency range of an endocavitary probe?

3.5–11.5 MHz.

What are the two types of endocavitary transducers listed?

Endovaginal and endorectal transducers

What type of footprint does a transesophageal probe have?

small footprint

What is a transesophageal probe used for?

Internal examinations

In what medical specialty is the transesophageal probe often used?

Cardiology

Why is a transesophageal probe used in cardiology?

To obtain a better image of the heart through the esophagus.

What is the frequency range of a transesophageal probe?

3-10 MHz