Chapter 2: scanning planes and scanning methods (textbook questions & notes)

When scanning in a sagittal plane, the ultrasound beam enters the body from? A) either an anterior or posterior direction. B) either an anterior, posterior, right lateral, or left lateral direction. C) either an anterior, posterior, or medial direction. D) either a right or left lateral direction.

A) either an anterior or posterior direction.

When scanning in a transverse plane, the ultrasound beam enters the body from? A) either an anterior, posterior, right lateral, or left lateral direction. B) either an anterior or posterior direction. C) a right or left lateral direction. D) either an anterior, posterior, or medial direction.

A) either an anterior, posterior, right lateral, or left lateral direction.

Define focal zone.

An area where the sound beam is narrow and imaging is at its best.

Coronal planes divide the body into unequal _____ and ______ sections.

Anterior; posterior

Define parasagittal plane.

Are to the right of left of midline and divide the body into unequal right and left sections.

The anatomic area(s) not seen in a sagittal plane... A) is posterior. B) is lateral. C) are superior and inferior. D) are anterior and posterior.

B) is lateral.

The anatomic area(s) not seen in a coronal plane... A) are lateral and medial. B) is superior. C) are anterior and posterior. D) is inferior.

C) are anterior and posterior.

The anatomic area(s) not seen in a transverse plane... A) are lateral and medial. B) is medial. C) are superior and inferior. D) are anterior and posterior.

C) are superior and inferior.

When scanning in a coronal plane, the ultrasound beam enters the body from? A) either an anterior or posterior direction. B) a posterior direction. C) a medial direction. D) either a right or left lateral direction.

D) either a right or left lateral direction.

The ____ of the structure being imaged ultimately determines which transducer should be used.

Depth

Define coronal plane.

Divide the body into unequal anterior and posterior sections.

Define transverse plane.

Divide the body into unequal superior and inferior sections.

Define sagittal plane.

Divides the body into equal right and left sections.

When scanning, every effort should be made to position the area(s) of interest in the transducer's _____ to obtain the best images.

Focal zone

Scanning planes are often obliqued (by very slightly twisting the transducer). The degree of the oblique is determined by _____.

How the structure of interest lies in the body.

Longitudinal views show a structure's _____ and ______?

Length and depth.

Sagittal planes divide the body into unequal _____ and _____ sections.

Right; left

Define oblique.

Slanted, angled.

Transverse planes divide the body into unequal ______ and ______ sections.

Superior; inferior

Define angle of incidence.

The angle at which the sound beam strikes the surface of a structure. (Affects the image)

The oblique scanning plane affords visualization of the _____.

The greatest margins of structures.

Scanning planes are ______ dimensional.

Two

Axial views show a structure's _____ and _____?

Width and depth.