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Study sets matching "radiology 4"

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Study sets matching "radiology 4"

29 terms
Radiology- Ch. 4: Radiology Biology
Ionization Process
Ion
Ionization Results
Free Radical Formation
Process of removing an electron from a neutral atom to produc…
An atom or subatomic particle with a positive or... negative cha…
The ejected electrons go on to react with other atoms... in the…
Causes most damage; Uncharged atom with an unpaired electron…
Ionization Process
Process of removing an electron from a neutral atom to produc…
Ion
An atom or subatomic particle with a positive or... negative cha…
16 terms
Radiology 4
Anode
Target point
Primary radiation
Milliampere
The positive electrode in the tube head
The focal spot of the anode attracts the stream of free elect…
Shorter wavelengths that penetrate the tissue and film
(mA) controls the number of electrons released (1/1000)
Anode
The positive electrode in the tube head
Target point
The focal spot of the anode attracts the stream of free elect…
25 terms
Radiology #4
Ultrasound
Pulse echo principle
US Propagation
Velocity
-non-invasive... -no ionizing radiation... -wall thickness... -interna…
-short burst of sound that is sent into tissues and reflects…
travels through tissue in waves of compression and rarefaction
-depends on medium in which sound is traveling... -slow in gas;…
Ultrasound
-non-invasive... -no ionizing radiation... -wall thickness... -interna…
Pulse echo principle
-short burst of sound that is sent into tissues and reflects…
30 terms
Radiology 4
What are natural sources of radiation?…
T/F: A chest X-ray produces less radia…
What can change the amount of cosmic r…
T/F: Natural radiation is less than ar…
Natural: cosmic rays, terrestrial, internal radiation and rad…
True
Cosmic Radiation: The sun and stars send a constant stream of…
False - it is more (85% vs 15%)
What are natural sources of radiation?…
Natural: cosmic rays, terrestrial, internal radiation and rad…
T/F: A chest X-ray produces less radia…
True
35 terms
Radiology lecture 4
Asymmetric narrowed joint spaces... Subar…
Early Findings... Pericapsular swelling a…
Step off sign
Boxers fracture
Osteoarthritis findings
RA findings
Asymmetric narrowed joint spaces... Subar…
Osteoarthritis findings
Early Findings... Pericapsular swelling a…
RA findings
43 terms
Radiology 4
What are the natural sources of radiat…
What are the man-made sources of radia…
__________: The sun and stars send a c…
Define Terrestrial radiation?
cosmic rays, terrestrial, internal radiation and radon.
medical-diagnosis and treatment, consumer and industrial prod…
Cosmic Radiation; cosmic x-rays
is radiation emitted by elements that occur naturally in the…
What are the natural sources of radiat…
cosmic rays, terrestrial, internal radiation and radon.
What are the man-made sources of radia…
medical-diagnosis and treatment, consumer and industrial prod…
22 terms
radiology #4
technique
kv
wavelength
Fifteen Percent Rule
systematic procedure to produce high quality radiograph. cont…
the energy or QUALITY of the X-ray film and penetrating of th…
is the distance from the crest of the wave to the crest of th…
an increase in kV by 15% will result in doubling the amount o…
technique
systematic procedure to produce high quality radiograph. cont…
kv
the energy or QUALITY of the X-ray film and penetrating of th…
28 terms
Radiology 4
BLESSED
Cleidocranical Dysplasia
Gardner's Syndrome
Hypodontia
Border... Location... Entity... Shape... Size... Effects on neighbor... Density
-skull, clavicle, and dentition defects... -short... -small or miss…
-multiple osteomas... -enostosis... -polyps of intestine... -multiple…
missing few teeth
BLESSED
Border... Location... Entity... Shape... Size... Effects on neighbor... Density
Cleidocranical Dysplasia
-skull, clavicle, and dentition defects... -short... -small or miss…
65 terms
Radiology 4
Incipient caries
Occlusal, Buccal, lingual
Crater shaped
Cervical burnout, restorations, abrasi…
Extends less than halfway through enamel
This type of caries is difficult to see on x ray
Shape of cemental caries
4 things that resemble caries
Incipient caries
Extends less than halfway through enamel
Occlusal, Buccal, lingual
This type of caries is difficult to see on x ray
90 terms
Par 4- Radiology: Conventional Radiology
What are the two types of films used i…
How is an image created using direct e…
Emulsion is designed to be ________ (m…
what kind of exposure film is used wit…
Direct and Indirect
The deposition of XR energy directly into the photosensitive…
MORE
Indirect Exposure Films (screen film)
What are the two types of films used i…
Direct and Indirect
How is an image created using direct e…
The deposition of XR energy directly into the photosensitive…
30 terms
Radiology 4
Process by which bone forms
Primary center for ossification
Secondary center for ossification
Contains thicker layer of compact bone…
Ossification
Diaphysis
Epiphysis
Body (shaft)
Process by which bone forms
Ossification
Primary center for ossification
Diaphysis
34 terms
Radiology #4
Latent period
Free radical
Indirect radiation occurs
Linear, nonthreshold
exposure to x-radiation and clinical symptoms
uncharged molecule, has unpaired electron, highly reactive an…
when x-ray photons are absorbed and form toxins
response of tissues to radiation
Latent period
exposure to x-radiation and clinical symptoms
Free radical
uncharged molecule, has unpaired electron, highly reactive an…
13 terms
Radiology 4
NCCT
IVP
Moth eaten calyces on IVP... putty kidney…
On IVP... egg in cup appearance ... Golf bal…
IOC for urinary stones !!!
IOC for renal TB
Renal TB ... Kidney is calcified and non functional ... Bladder is…
Papillary necrosis
NCCT
IOC for urinary stones !!!
IVP
IOC for renal TB
13 terms
Radiology 4
primary beam
Secondary beam
Scattered beam
discovered x radiation 1895
useful beam most power full
occurs when it hits matter... less powerful
travels in straight line when defected by matter and bounces…
wilhelm conrad rotengen
primary beam
useful beam most power full
Secondary beam
occurs when it hits matter... less powerful
Radiology 4
Bone islands are common T or F.
Bone islands can be found in the spine…
Differential diagnosis for bone island…
Osteomas are found most exclusively wh…
True
True
Os Odontoideum
Skull
Bone islands are common T or F.
True
Bone islands can be found in the spine…
True
46 terms
4. Cardiovascular Radiology
Cardiovascular Imaging Modalities
Echocardiography
Echo Image
Nuclear Imaging
Chest X-Ray... Echocardiography... - Vascular ultrasound... Nuclear…
non-invasive
need to inject an isotope that is usually tagged ... If we see…
Cardiovascular Imaging Modalities
Chest X-Ray... Echocardiography... - Vascular ultrasound... Nuclear…
Echocardiography
non-invasive
61 terms
Radiology PP 4
What are the 4 steps in how to search…
Virtually all gas in the bowel comes f…
Loops of the bowel that are filled bey…
Distension of the bowel is _____.... Dil…
1. Overall gas pattern... 2. Extraluminal air... 3. Abnormal calcif…
swallowed
dilated
1. normal... 2. abnormal
What are the 4 steps in how to search…
1. Overall gas pattern... 2. Extraluminal air... 3. Abnormal calcif…
Virtually all gas in the bowel comes f…
swallowed
155 terms
RAdiology 1-4
1 kilo electron volt = how many electr…
Two or more atoms joined by chemical b…
How are molecules formed
Ion
1000
Molecule
Transfer of electrons or sharing of electrons between the out…
Atom that gains or loses an electron
1 kilo electron volt = how many electr…
1000
Two or more atoms joined by chemical b…
Molecule
radiology ch 3 & 4
cavitation
compressor
contra- angle
dental delivery unit
process of vacuums created in liquid by high intensity sound…
a machine with oil or air cooled motor that is built to compr…
attachment to the slow speed straight handpiece that creates…
electrically driven or compressed gas driven these units ofte…
cavitation
process of vacuums created in liquid by high intensity sound…
compressor
a machine with oil or air cooled motor that is built to compr…
130 terms
Radiology part 4
Dens fracture
Os Odontoideum
Diffuse idiopathic
DJD spine
Dens fracture
Os Odontoideum
Radiology: Chapters 3&4
absorbed dose
dose equivalent
dosimeter
dosimetry
the quantity of energy imparted by ionizing radiations to mat…
the quantity obtained by multiplying the absorbed dose in tis…
a device used to measure radiation exposure to personnel
various methods used to measure radiation exposure to personnel
absorbed dose
the quantity of energy imparted by ionizing radiations to mat…
dose equivalent
the quantity obtained by multiplying the absorbed dose in tis…
11 terms
Radiology Ch 4
Cervical spine is seen where?
Submandibular shadow artifact
Large metallic earrings producing larg…
Lead apron artifact
Superimposed over the midline of the film
What is seen here?
What is seen here?
What is seen here?
Cervical spine is seen where?
Superimposed over the midline of the film
Submandibular shadow artifact
What is seen here?
63 terms
Radiology - Test 4
ALARA
Conditions for necessary x-rays on ped…
When would it be necessary to take BWs…
Radiation Protection
as low as reasonably achievable
high risk of caries... abscess, cyst, granuloma... developmental ab…
if the child has touching contacts
lead apron/thyroid collar... fast film... minimum number of x-rays…
ALARA
as low as reasonably achievable
Conditions for necessary x-rays on ped…
high risk of caries... abscess, cyst, granuloma... developmental ab…
64 terms
Radiology - Lab 4
Soft tissue
A) It diverges mildly... B) Even more div…
enlarged heart, dorsally displaced tra…
Deep chested
What type of opaqueness is the heart
What to note about how the trachea normally looks compared to…
If the trachea and spine are parallel (trachea does not diver…
What type of chest conformation is this?
Soft tissue
What type of opaqueness is the heart
A) It diverges mildly... B) Even more div…
What to note about how the trachea normally looks compared to…
191 terms
Radiology Exam 4
Chapter 18
Whats describes a product or method th…
protection against infection during an…
The removal or destruction of infected…
Aseptic Techniques
Aseptic
B. surgical asepsis
A. Medical asepsis
Chapter 18
Aseptic Techniques
Whats describes a product or method th…
Aseptic
58 terms
Radiology Pictures Lecture 4
Antrolith
Tapeworm-Cysticercosis Cellulosae
Calcifications in Metastases
Calcifications Related to Meniscal Rep…
Antrolith
Tapeworm-Cysticercosis Cellulosae
23 terms
Radiology Ch. 4
ionization radiation
free radical formation
direct theory
indirect theory
results when x-rays strike patient tissue
formed when an x-ray photon ionizes water. Highly reactive an…
cell damage results when ionizing radiation directly hits cri…
x-ray photons are absorbed within the cell and cause the form…
ionization radiation
results when x-rays strike patient tissue
free radical formation
formed when an x-ray photon ionizes water. Highly reactive an…
Radiology Unit 3/4
Fluroscopy
Angiography
Radiation Therapy/Radiotherapy
Brachytherapy
Used for real time dynamic viewing of anatomic structures
X-ray study of blood vessels using injection of contrast media
Medical use of ionizing radiation as part of cancer treatment…
Form of interventional radiology used to treat coronary in-st…
Fluroscopy
Used for real time dynamic viewing of anatomic structures
Angiography
X-ray study of blood vessels using injection of contrast media
34 terms
Ch. 4 radiology
Contrast
Crystal
Definition
Density
The visual differences between shades ranging from black to w…
Term used to refer to the silver halide combinations that are…
Sharpness and clarity of the outline of the structures in a r…
The overall darkening or blackening of the radiographic image…
Contrast
The visual differences between shades ranging from black to w…
Crystal
Term used to refer to the silver halide combinations that are…
76 terms
Radiology Lecture Chapter 4
What are the three basic requirements…
What terms should be used when describ…
Portion of the image that is dark or b…
Portion of the image that is light or…
1. All parts of the structures recorded must be imaged as clo…
radiolucent, radiopaque, density, contrast, and sharpness
Radiolucent
Radiopaque
What are the three basic requirements…
1. All parts of the structures recorded must be imaged as clo…
What terms should be used when describ…
radiolucent, radiopaque, density, contrast, and sharpness
73 terms
Radiology ch. 4
radiolucent
radiopaque
density
little density
dark
white
the degree of darkness or image blackening
an image that appears light
radiolucent
dark
radiopaque
white
125 terms
Radiology: Exam 4
When the bisecting technique is used,…
The angle formed by the film and the l…
When the bisecting technique is used,…
When the stabe bite-block is used with…
Lingual
Bisected
90
Close; removed
When the bisecting technique is used,…
Lingual
The angle formed by the film and the l…
Bisected
26 terms
Radiology chapter 4
The latent period in radiation biology…
A free radical is
Direct radiation injury occurs when
indirect theory proposes
Exposure to x-radiation and clinical symptoms
Uncharged molecule,unpaired electron in the outer shell,highl…
X-ray photons hit critical targets within a cell
Free radical combine to form toxins
The latent period in radiation biology…
Exposure to x-radiation and clinical symptoms
A free radical is
Uncharged molecule,unpaired electron in the outer shell,highl…
10 terms
Radiology Vocab 4
Scattered radiation
Stray radiation
Fluroscope
Intensifying screen
Radiation that during the passage through a substance has bee…
All radiation emitted in directions other than the useful bea…
A device which enables one to see at once the image of an obj…
A device used to help the x-Ray film obtain an image in a sho…
Scattered radiation
Radiation that during the passage through a substance has bee…
Stray radiation
All radiation emitted in directions other than the useful bea…
9 terms
Radiology quiz #4
4 basic components of an x-ray film
Adhesive layer
Film emulsion
Film base
-film base... -adhesive layer... -film emulsion... -protective layer
Attaches the emulsion to the base
Coating with a mixture of gelatin and silver halide crystals…
0.2 mm thick piece of polyester plastic provides strength
4 basic components of an x-ray film
-film base... -adhesive layer... -film emulsion... -protective layer
Adhesive layer
Attaches the emulsion to the base
13 terms
radiology midterm Ch. 4
what are the three basic requirements…
short scale contrast
long scale contrast
small focal spot (rules for shadow cas…
1. all parts of the structures recorded must be imaged as clo…
black/white (usually at 70 kpv)
more gray shades
to reduce the size of the penumbra (partial shadow arround th…
what are the three basic requirements…
1. all parts of the structures recorded must be imaged as clo…
short scale contrast
black/white (usually at 70 kpv)
22 terms
Radiology Ch. 4
radiolucent
the less dense the tissue, the more th…
gingiva, pulp, air spaces
radiopaque
What term used in radiography to describe dark or black areas…
Why are some areas radiolucent?
Give examples of tissues that would appear radiolucent on a r…
What term used in radiography to describe white or light area…
radiolucent
What term used in radiography to describe dark or black areas…
the less dense the tissue, the more th…
Why are some areas radiolucent?
66 terms
Radiology topic 4
The quality of the xray beam is cotrol…
Kilovoltage range
Higher kilovoltage produces X-rays with
Volt
Kilovoltage peak
65-100
Shorter wavelengths
Measurement used to describe the amount of electric current f…
The quality of the xray beam is cotrol…
Kilovoltage peak
Kilovoltage range
65-100
46 terms
Radiology Ch 1-4
Define radiation:
Define electromagnetic radiation:
Define xray:
Define xray beam:
energy carried by waves or a stream of particles
method of transporting energy through space. xray.
a form of electromagnetic radiation similar to visible light…
a number of xrays traveling together through space at a rapid…
Define radiation:
energy carried by waves or a stream of particles
Define electromagnetic radiation:
method of transporting energy through space. xray.
42 terms
Radiology Lecture #4
How do I start to read an x-ray?
What are we looking for in quality ass…
How do you position AP and oblique fil…
How do you position lateral view films?
Quality assurance... Get organized
Correct patient... correct foot... correct date... adequate exposure
TOES UP
Landscape position
How do I start to read an x-ray?
Quality assurance... Get organized
What are we looking for in quality ass…
Correct patient... correct foot... correct date... adequate exposure
32 terms
Radiology Ch. 4
Contrast
Crystal
Definition
Density
The visual differences between shades ranging from black to w…
Term used to refer to the silver halide combinations that are…
Sharpness and clarity of the outline of the structures in a r…
The overall darkness or blackening of the radiographic image.…
Contrast
The visual differences between shades ranging from black to w…
Crystal
Term used to refer to the silver halide combinations that are…
32 terms
Radiology (4)- Cysts
BBC (buccal bifurcation cyst) (paraden…
A. periapical cyst B. periapical cyst…
BBC (buccal bifurcation cyst) (paraden…
benign
benign or malignant?
BBC (buccal bifurcation cyst) (paraden…
A. periapical cyst B. periapical cyst…
63 terms
Radiology Ch. 3 & 4
Voltage
Volt
Kilovolt... 1kV=1000V
Kilovoltage
Measurement of force that refers to the potential difference…
The unit of measurement used to describe the potential that d…
Most radiographic units operate using this.
Maximum voltage or peak voltage of an alternating current. Re…
Voltage
Measurement of force that refers to the potential difference…
Volt
The unit of measurement used to describe the potential that d…
51 terms
Radiology midterm (4)
The goal when exposing dental radiogra…
What are the two techniques for exposi…
Objective of both paralleling techniqu…
Objective of both paralleling techniqu…
1. accurate in size... 2. free from distortion... 3. correctly prop…
Paralleling and bisecting technique
horizontal and vertical angles
distortion and most accurate representation
The goal when exposing dental radiogra…
1. accurate in size... 2. free from distortion... 3. correctly prop…
What are the two techniques for exposi…
Paralleling and bisecting technique
87 terms
Radiology Physics Chapter 4
Electrostatics
Electrification
coulomb (C)
4 Laws of Electrostatics
study of stationary electric charges
can be created by contact, friction, or induction... -an object…
= 6.3 x 10^18... - 1 Ampere is the flow of 1 C /sec
1. Unlike charges attract; like charges repel... 2. Electric ch…
Electrostatics
study of stationary electric charges
Electrification
can be created by contact, friction, or induction... -an object…
10 terms
Radiology Vocal 4
Scattered Radiation
Stray Radiation
Fluoroscope
Intensifying Screen
radiation during the passage through a substance has been dev…
all radiation emitted in directions other than the useful bea…
device enables one to see at once the image of and object exp…
device used to help the x-ray film obtain an image in a short…
Scattered Radiation
radiation during the passage through a substance has been dev…
Stray Radiation
all radiation emitted in directions other than the useful bea…
13 terms
Radiology Image 4
A
B
C
D
radius
scaphoid
radial styloid
trapezium
A
radius
B
scaphoid
101 terms
Skeletal Radiology 4: Midterm Practical
Aneurysmal Bone Cyst
Aneurysmal Bone Cyst
Aneurysmal Bone Cyst CT
Aneurysmal Bone Cyst MRI
Pain... 10-30
Pain... 10-30
Pain... 10-30
Aneurysmal Bone Cyst
Pain... 10-30
Aneurysmal Bone Cyst
Pain... 10-30
10 terms
Radiology I CH. 4
All ionizing radiations are...
Although amount of xradiation used is…
radiation biology is...
... all xrays pass through pt. and rea…
harmful and produce biologic changes in living tissues.
biological damage can occur.
study of effects of ionizing radiation on living tissues.
not.
All ionizing radiations are...
harmful and produce biologic changes in living tissues.
Although amount of xradiation used is…
biological damage can occur.
46 terms
Radiology Quiz #4
Definition: The intensity of reflectio…
Does anechoic tissue reflect more or l…
How would you classify a urinary bladd…
Why is it necessary to clip fur and ap…
echogenicity
less
anechoic
to minimize the amount of air and space between the patient a…
Definition: The intensity of reflectio…
echogenicity
Does anechoic tissue reflect more or l…
less
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