Imaging

Question 1

images can be obtained by?

Answer 1

using x-ray/radioactive substances/sound waves/body’s magnetism

Question 2

a radiologist can treat diseases by?

Answer 2

radiation (radiation oncology) or minimally invasive, image guided surgery (intervention radiology)

Question 3

what does a radiologist technologist do?

Answer 3

use x-ray for diagnoses & tx, produces images of diseases and disorders, and internal images of organs/bones. select proper technique to ensure quality of radiograph and administer dye to make internal body parts visible

Question 4

what is the education for radiologist technologist?

Answer 4

2 years is the average

Question 5

what is the job of radiation oncologist?

Answer 5

determine tumor tx plan for patient

Question 6

what are the goals of radiation oncologist?

Answer 6

cure, relieve pain & distress, enhance action of drugs, and establish local tumor control

Question 7

what does a radiation oncologist must identify?

Answer 7

volume of pt’s body treated, radiation entry & exit, radiation source, amount & # of doses, total tumor dose, and prescription dose (isodose)

Question 8

what is a NMT job and education?

Answer 8

prepare and administer radiopharmaceuticals in effort to detect and treat diseases
education: 1 to 4 yr program

Question 9

what is the job of ultrasound technologist/sonographer?

Answer 9

use non-ionizing high-frequency sound waves into pt. body, then collect reflected echoes to form images. produces 2D images

Question 10

what is the education for a ultrasound technologist?

Answer 10

2 to 4 year program (specialties: obstetrics and gynecologic)

Question 11

what is the job of radiation therapist?

Answer 11

explain tx plan to pt; follow safety procedures to protect pt and themself from overexposure; examine machine; x-ray pt; check computer program so it gives correct dose in right area; monitor to check for reactions; and keep detailed record to tx

Question 12

what is the job of mammographers?

Answer 12

ionizing radiation to create breast images for breast cancer screening and diagnostic; use low doses and accurate positioning to optimize imaging & maintain safety standards

Question 13

what is the education of mammographer?

Answer 13

associate/bachelor in radiography (most specialize while enrolled)

Question 14

what is the job of a CT technologist?

Answer 14

use ionizing radiation to produce cross-sectional images. images show tissue, bones, organs, and blood vessels

Question 15

what is the job of MRI technologist?

Answer 15

use resonant frequency properties of atoms w/in magnetic field to image anatomic/psysiologic conditions of body. also prepare & administer contrast solution

Question 16

what is education of MRI technologist?

Answer 16

associate, diploma, or bachelor

Question 17

what is the job of cardiovascular technologist?

Answer 17

work in cardiac cath lab & perform complex procedures (stent implant, cardiac pacemaker, defibrillator, and other diagnostic test)

Question 18

where can diagnostic radiography be performed?

Answer 18

1. abdomen: intestine, kidney, & stomach
2. CNS: brain & spinal cord
3. chest: lungs
4. face & neck: sinuses & carotid arteries
5. heart & vascular system

Question 19

what is noninvasive imaging and where is it used?

Answer 19

taken outside body & don’t need contrast medium
used on: fingers, chest, spine, and skull

Question 20

what is invasive imaging?

Answer 20

taken inside body & allows organs and blood vessels to be viewed. contrast media used

Question 21

how can the contrast media put in body?

Answer 21

throw cath/injected/inserted manually/swallowed
- organic iodine/barium based

Question 22

who is the person to discover X-rays?

Answer 22

Wilhelm C. Roentgens in 1895

Question 23

who discovered contrast agents?

Answer 23

pharmacists

Question 24

what does fluoroscopy use?

Answer 24

X-ray beam to produce “live” X-ray image. contrast media used. often used to observe heart and GI (barium swallow for upper GI and barium enema for lower GI)

Question 25

what is intravenous pyleogram?

Answer 25

X-ray exam of KUB. used iodinated contrast material to turn the kidneys and ureters white

Question 26

how does MRI work?

Answer 26

magnetic field aligns hydrogen atoms (when pulse of waves direct, H atoms change alignment of nuclei)

Question 27

what is a breast tomosynthesis?

Answer 27

3-D breast imaging (mammography system where X-ray tube and imaging plate move)

Question 28

what is nuclear medicine?

Answer 28

branch of imaging that use radioactive material to diagnose and determine severity of/treat diseases (cancer, heart, GI, endocrine, neurological). able to identify diseases in earliest stage

Question 29

how does a pet scan work?

Answer 29

involves acquisition of physiologic images based on detection of radiation from positron. radiotracer is swallowed/injected/inhaled

Question 30

what does echocardiography show?

Answer 30

use sound waves to examine motion, shape, and bloodflow. show size, thickness, and pumping strength + valve function

Question 31

what is an angiogram?

Answer 31

image of arteries and veins filled with contrast

Question 32

what is an arteriogram?

Answer 32

only arteries with contrast

Question 33

what does an abrupt stop in a coronary angiography mean?

Answer 33

bloodclot or atheroma (fat deposit)

Question 34

what is a collimator beam?

Answer 34

restricting device permanently mounted under tube housing (has 2 pairs of lead shutters with light source and reflecting mirror to be precise)