Dr Bruce 2 Imaging Studies

Front 1

xrays good for showing?

Back 1

pneumonia, collapsed lungs, enlarged hearts, bones, cartilage

Front 2

takes multiple slices of body in planes
useful for head chest & abdomin

Back 2

ct scan

Front 3

do ct's give radiation?

Back 3

yes... dangerous

Front 4

do x rays show cancer?

Back 4

no

Front 5

will cancer show on a ct scan?

Back 5

yes

Front 6

what are x rays good at picking up?

Back 6

pneumonia, collapsed lungs, enlarged hearts, bones, cartilage

Front 7

tomo means what in latin?

Back 7

to cut

Front 8

T1 mri shows?

Back 8

structure

Front 9

T2 mri shows?

Back 9

inflammation

Front 10

2 types of lung scans

Back 10

profusion- radio isotopes injected into blood
ventilation- a radioisotope tagged gas is breathed by patient

Front 11

lung scan with radio isotopes injected into blood

Back 11

profusion

Front 12

lung scan with a radioisotope tagged gas is breathed by patient

Back 12

ventilation

Front 13

Lung scans are done for basically two types of pathologies. What are they?

Back 13

pulmonary embolisms
parenchymal lung consolidation

Front 14

For pulmonary embolisms do you use abnormal or normal perfusion scans?

Back 14

abnormal

Front 15

For pulmonary parenchymal lung consolidation do you use abnormal or normal perfusion scans?

Back 15

normal

Front 16

Radioactive dye injected into the pulmonary artery. The “gold standard” for diagnosing pulmonary embolism, esp. in a difficult to diagnose patient with lung disease as well as pulmonary embolism.

Back 16

pulmonary angiogram

Front 17

_____ _________s have now largely replaced pulmonary arteriograms: the dye can be injected into a peripheral vein instead of passing a catheter into the pulmonary artery through the jugular, subclavian, etc

Back 17

CT angiograms

Front 18

scans obtained after the administration of a radioisotope to the patient

Back 18

pet scan

Front 19

The radioisotope emits positrons which collide with electrons and cause the emission of paired gamma rays which go in opposite directions and are both detected by the scanner... this all happens in what type of imaging?

Back 19

pet scan

Front 20

_______scans diffuse better in solid tissue, _______ scans light up the active blood flow in terms of which tissues are taking up the most nutrients.

Back 20

PET
SPECT

Front 21

These scans are similar in that respect to CT scans. They show anatomy and activity very precisely

Back 21

SPECT scans

Front 22

particularly good for epilepsy and brain function

Back 22

SPECT scans

Front 23

The primary form of _____ uses the blood-oxygen-level-dependent (BOLD) contrast technique

Back 23

fMRI

Front 24

used in lie detection?

Back 24

fMRI

Front 25

begun to dominate brain scanning?

Back 25

fMRI

Front 26

reads difference between oxygen rich and oxygen poor blood resulting in colored pictures of brain activity

Back 26

fMRI

Front 27

used to study language, perception of pain, how we learn, emotional responses

Back 27

fMRI

Front 28

pre frontal cortex more or less active when lying? Who studied this from harvard?

Back 28

Joshua Geene

Front 29

________ scans can be used to show how deeply a brain-injured person is in a coma

Back 29

fMRI

Front 30

_______ scans might also be used to determine if such a deeply comatose person is actually brain dead or not!

Back 30

fMRI

Front 31

Wernicke's area in the brain is for what?

Back 31

language reception

Front 32

Broca's area in the brain is for what?

Back 32

speech

Front 33

is used primarily to diagnose and treat conditions of the bile ducts, including gallstones, inflammatory strictures (scars), leaks (from trauma and surgery), and cancer.

Back 33

ERCP (endoscopy)

Front 34

A medical imaging technique that uses magnetic resonance imaging to visualize the biliary and pancreatic ducts in a non-invasive manner.
 This procedure can be used to determine if gallstones are lodged in any of the ducts surrounding the gallbladder.

Back 34

MRCP

Front 35

are virtual colonoscopies with ct scans as good at detecting small polyps as actual colonoscopies?

Back 35

no
virtual only detect 39% of small polyps (6mm or less), and only 55% of larger polyps (10mm) vs 100% for actual colonoscopies

Front 36

ultrasounds... how many cycles per second?

Back 36

5-10 million