CH 1 Into to US

What is the Hippocratic Oath

a pledge observed by physicians and other health care workers containing

basic guidelines for ethical standards and conduct between the health care provider and the

patient

What is Pathology

the study and process of disease and injury

Differences btwn malignant and benign tumors

Malignant:

• can spread/ grows into nearby tissue

• irreg border

• more dangerous

Benign:

• smooth border

• does not spread

• slower growth

What is a protocol?

necessary images acquired during a sonographic study

What are differentials?

Potential Conditions and possible causes considered to find the real one and rule out

dangerous emergencie

• in ultrasound means using sonographic patterns (like echogenicity, borders, and

  vascularity) to distinguish between conditions that look similar on an image

Types of imaging modalities

• radiography

• sonography

• computed tomography

• MRI

• nuclear med

• mammography

Xrays

form of high-energy electromagnetic radiation

Mammography

A mammogram is a low-dose x-ray image of the breast. Mammograms are the best primary screening tool to find breast cancer

CT

stands for computed tomography, which is a medical imaging technique that uses a narrow beam of x-rays to create detailed cross-sectional images of the boy

MRI

a medical imaging technique that uses a magnetic field and computer-generated radio waves to create

detailed images of the organs and tissues in your body

• most common contrast agent used is gadolinium

Magnetic Resonance Angiography

an imaging test that shows your blood vessels and blood flow

Nuclear medicine

medical specialty that uses radioactive substances to diagnose and treat disease

• involves the use of radioactive tracers, a special camera, and a computer

Ultrasound

transmitted sound waves that can pass through thin layers of skin, but bounce off fluids, tissues and

internal organs → These reflected waves are received by the probe, which converts them into

electric signals and feeds them into the computer → performs quick calculations to create a real-time image of the inside of the human body

Limitations to ultrasound

Sound waves don't travel well through AIR or BONE