medical imaging test

X-rays

• High energy radiation creates radiographs

• Absorbed by dense structures (why bones are white)

• Can cause change and mutation to dna

Fluoroscopy

• uses continuous beam of xray to to show organ movement

Radiotherapy

• xray either kills or prevent cells from multiplying

Ultrasounds

• Device called transducer produces high-frequency sound waves that enter body and reflect back

• Used for soft tissues and organs

Computed tomography scan (CT)

• Using x ray to form 3d image

• Sees bone, soft tissues and organs at once

• Diagnoses cancer, skeletal issues, vascular disease

Magnetic resonance imaging (MRI)

• Magnets and radio waves produce detailed image of body

• Strong magnetic fields interact with hydrogen atoms in body 

•  Cylinder that you go in

Positron emissions tomography (PET)

• Nuclear medicine → given radioisotope that emits particles

• Detects cancer in tissues and effects of cancer treatment

Biophotonics

• Light scatters when hits cells and creates different scatter patterns

• Views tissues deep in body

• Endoscope in intestines

Prosthesis

Artificial extension that replaces missing body part

Prosthetic

• Biomechatronics → science of using mechanical devices with human muscle, bones, nervous system to assist/ enhance motor control lost ny trauma

• Biosensors detect what user wants and is nerves sends to controller, controller will make the device move the desired way

Artificial organs

• Replace a natural organ to restore a specific function

• Imminent death, self care, interact socially restoration

Brain pacemaker

sends electrical impulses to brain to relieve depression, epilepsy, tumors

Artificial valves

Especially at ends of stomach, to help function of sphincters, esophageal cancer, reflux disease

Artificial pacemaker

electronic device that helps to keep the heart contractions regular

Cochlear implants

help with hearing or cosmetic repair

Cosmetic surgery included

Skin grafts, reconstructive, cosmetic

Chemotherapy

drugs that destroy cancer are either injected or taken orally. Used for later stages. Slows down or stops cell growth that are dividing fast

Types of transplant donors

Deceased, living, and pigs (xenograft)

Transplant complications

Recipients body turns against the new organ, causing it to fail → need anti rejection medicine suppresses immune system 

Bioethical issues of transplantation

Transplant tourism, organ harvesting  

Aromatherapy

• inhale scents → relieve stress and does hormonal and emotional balance

Biofeedback

Therapist trains you to listen to your body (heart rate, blood pressure, breathing, blood pressure..)

Acupuncture

2000 yo chinese, hair thin needles

Homeopathic medicine

Involves treating a disease with plant and  remedies 

Magnetic/ polarity therapy

Magnetic fields enter your body to improve how cells use oxygen and repair themselves

Chiropractic

Keeping the spine in line

Qigong

Move and meditate

Hypnotherapy

Slip into a trance and become completely comfortable and relaxed

Reflexology

• Zones on feet and hands mirror certain points of the body

• Pressure to these zones can fix certain problems

Rolfing

a method of deep tissue massage with heavy emphasis on keeping the body parts alignment so gravity won't adversely affect the body

Shiatsu

• Another chinese method → meaning finger pressure

• Massage mixed with acupuncture pressure points