Question

In: Nursing

Echogenicity is a relative term. This is why sonographers use the terminology hyperechoic, hypoechoic, anechoic, isoechoic,...

Echogenicity is a relative term. This is why sonographers use the terminology hyperechoic, hypoechoic, anechoic, isoechoic, homogeneous, andheteogeneous to sonographically describe the appearance of anatomy and pathology. Describe these terms and give an example of each.

Expert Solution

The ultrasound is made up of descriptive words to try to form a picture in reader's mind, waves of ultrasound are formed in transducer , the radiologist applies transducer to the body and it reflects back the sound waves with different frequencies in the same transducer.

At different body parts from fat to kidney there are different echoes pass through the interface and some reflected ultrasound forms an image on the screen and radiologist interprets the kind of disease or abnormalities.

ECHOGENECITY : each tissue type such as liver ,spleen or kidney has different echogenicity in its normal state , but in diseased state or any abnormalities the echogenicity is altered either more or less than usual , this help radiologist to categorise the disease.

There are different terms for different sound waves ,they are

1. Hyperechoic - more echogenic (brighter ) than normal

Eg:.

# A hyperechoic liver lesion on ultrasound can be both benign and malignant.

# A benign hepatic hemangioma is hyperechoic liver lesion.

# Colorectal carcinoma is 50% hyperechoic .

# Bones, tendons are also hyperechoic.

HYPOECHOIC - less echogenic (darker )than normal.

If there is an area which doesn't reflect back the sound waves , there will be no reflected sound for the probe to receive, and the area is called HYPOECHOIC.

Eg: Urine in bladder , Fluid in simple cyst and amniotic fluid in uterus are HYPOECHOIC that sound waves doesn't reflect back .

ANECHOIC - without echoes or appearing without echoes .

The term used when body part appears black on ultrasound and they do not produce echoes , an ANECHOIC area in the ultrasound denoted by red arrows.

Eg: urine in bladder in this the sound waves bounce off and reflect back and echo which have no sounds.

ISOECHOIC - The same echogenicity as neighbouring organs or tissues .

Eg; if left breast is metastatic and right is also metastatic then it is called isoechoic , it can be hypoechoic, hyperechoic, and ANECHOIC to the rest of the parenchyma.

HOMOGENOUS -. Refers to an even echo or pattern that are relative and uniform in composition.

HETEROGENEOUS- . Refers to an uneuneven echo pattern or reflection of varying echodensities.

Eg: it might make difficult to differentiate benign and malignant nodules, for eg; thyroid gland has been associated with diffuse thyroid disease that's make the finding difficult.

Nightingale answered 2 years ago

why would diuretics be perscribed for long term use?

2. Demand terminology Complete the following table by selecting the term that matches each definition.

2. Demand terminology Complete the following table by selecting the term that matches each definition. A graphical object showing the relationship between the price of a good and the amount of the good that buyers are willing and able to purchase at various prices A table showing the relationship between the price of a good and the amount that buyers are willing and able to purchase at various prices The claim that, with other things being equal, the quantity demanded of a good falls...

A high and rising level of long-term debt relative to short-term debt might signify that:

A high and rising level of long-term debt relative to short-term debt might signify that: (a) inflation expectations are worsening; (b) monetary policy is too tight; (c) borrowers have confidence in the outlook for inflation and real economic growth; (d) major debt restructuring is imminent.

In gel electrophoresis, why is it correct to use the term "apparent" in front of molecular...

In gel electrophoresis, why is it correct to use the term "apparent" in front of molecular weight?

Why is poverty considered a relative concept?

Explain why you would use either short term or long term financing for managing working capital.

41. A high and rising level of long-term debt relative to short-term debt might signify that:...

41. A high and rising level of long-term debt relative to short-term debt might signify that: (a) inflation expectations are worsening; (b) monetary policy is too tight; (c) borrowers have confidence in the outlook for inflation and real economic growth; (d) major debt restructuring is imminent. 42. Normally, falling tax rates and rising government spending can be expected to: (a) dampen investment spending; (b) cause long-term interest rates to fall; (c) win legislative approval from the Federal Reserve; (d) create...

5.Demand terminology Complete the following table by selecting the term that matches each definition. Quantity Demand...

5. Demand terminology Complete the following table by selecting the term that matches each definition. The amount of a good that buyers are willing and able to purchase at a given price A table showing the relationship between the price of a good and the amount that buyers are willing and able to purchase at various prices The claim that, with other things being equal, the quantity demanded of a good falls when the price of that good rises A graphical object showing the relationship...

Why does the term "meaningful use" become so important? Why does looking at workflow and involving...

Why does the term "meaningful use" become so important? Why does looking at workflow and involving end users so important for any process? Can you think of any examples to share, whether it is healthcare related or not, that an outcome could have been better if workflow/involving end users would have made a difference.

Which is better intrinsic or relative valuation? Why?