Angiography: X-ray and Output Phosphor

Only available on StudyMode
  • Download(s) : 79
  • Published : January 23, 2013
Open Document
Text Preview
ADVANCED IMAGING ( MIDTERM)
MARCH 04, 2012

Please read each question carefully and select the best answer 1.During the angiographic procedure, oxygen should be applied to the patient when the oxygen saturation level falls below: a.50%
b.75%
c.60%
d.90%
2.The symbol used to denote that oxygen has been bound to hemoglobin to form oxyhemoglobin is: a.HbO2
b.SbO2
c.Hb2O2
d.SpO

3.A heart rate of less than 60 beats/ minute would be considered to be: a.Tachycardia
b.Normal
c.Bradycardia
d.Isocardia

4.The individual responsible for the development of the percutaneous puncture technique used in angiographic procedure is: a.Egas Moniz
b.Sven Ivan Seldinger
c.Ivan Stephanie
d.JP Morgans

5. Radiographic contrast can be measured from a H & D curve by finding the slope of which of the following parts? a.toe
b.shoulder
c.threshold
d.straight line portion

6.Blood is transported to the left atrium by the:
a.pulmonary artery
b.basilar artery
c.pulmonary vein
d.septal vein

7.The major vein that returns blood from the upper part of the body to the heart is the: a.subclavian vein
b.submandibular vein
c.superior vena cava
d.inferior vena cava

8.The inferior vena cava carries oxygenated blood from the lower parts of the body to the heart. a.true
b.false

9.Radiography of a joint space and it’s surrounding structures with contrast injection is: a.jointology
b.arteriography
c.arthrography
d.angiography

10.A hypersensitivity to the iodine in a contrast media is an indication to arthrography. a.true
b.false

11.A double contrast study of the a synovial joint will usually involve ____, and _______ contrast media a.radiolucent, negative
b.radiopaque, positive
c.air, water
d.positive, negative

12. tendons are usually fibrous tissue that connects:
a.muscle to bone
b.muscle to muscle
c.bone to bone
d.more than one of the above

13.The joint that is best demonstrated by contrast arthography more than any other joint is the: a.shoulder joint
b.knee joint
c.wrist joint
d.TMJ

14.Contrast arthography is usually performed with a general anesthetics a.true
b.false

15.What are the two methods for performing contrast arthography of the knee? a.immediate and delayed
b.invasive and noninvasive
c.vertical ray and horizontal ray
d.perpendicular ray and angled ray

16.What is the most common reason for performing hip arthography on children? a.child abuse
b.automobile accident
c.long bone measurement
d.congenital hip dislocation

17.What examination combines positive and negative contrast media in a joint to demonstrate soft tissue structures? a.pneumoarthrography
b.opaque orthography
c.double contrast orthography
d. none of the above

18.To demonstrate loose particles in the joint space, it is usually better to employ a : a.single contrast study
b.double contrast study

19.To demonstrate a torn ligament or meniscus tear in a joint space, we usually apply the: a.double contrast study
b.single contrast study

20.The most commonly used TV camera tube in digital fluoroscopy is : a.Plumbicon
b.Vidicon

21.In a tri-focus image intensifier, the input phosphor size is fairly standard while the output phosphor size varies . a.true
b.false

22.The conversion factor in fluoroscopic intensification is: a.approximately 10-5 times the brightness gain
b.is equal to the output phosphor illumination divided by the input phosphor exposure rate. c.the product of minification gain and flux gain
d.a and b

23.In general low kVp and high mAs are preferred for fluoroscopy. a.true
b.false

24.What is the brightness gain for a 17 cm image intensifier tube having a flux gain of 140 and a 2.5 cm output phosphor? a.6474
b.3220
c.2230
d.4000

25.How magnified is the image of a 30/25/10 image intensifier in the 10 cm mode compared with the 30cm mode? a....
tracking img