Central Nervous Systems Scintigraphy

Front 1

The venous phase of a cerebral blood flow study is signaled by?

Back 1

B appearance of the radio pharmaceutical and the superior sagittal sinus

Front 2

Delocalization a technetium-99m HMPA0 is related to

Back 2

B cerebral blood flow

Front 3

CSF is made mostly of

Back 3

B. water

Front 4

The function of cerebrospinal fluid is

Back 4

Hey protect the brain and spinal cord against shock

Front 5

When positioning for a radionuclide angiogram, the patient should be positioned?

Back 5

B anteriorly

Front 6

Exametazime is also known as

Back 6

C. HAMPAO

Front 7

Bicisate is also known as

Back 7

D. Edc

Front 8

CSF dynamics or study following administration of indium 111 DTPA

Back 8

C. Via intrathecal injections

Front 9

The dose which would commonly be used for a radionuclide angiogram with technetium-99m DTPA is

Back 9

C 20 MCI

Front 10

Which of the following is true regarding injection of the radiopharmaceuticals for SPECT brain imaging

Back 10

A lights should be dimmed during injection

Front 11

Which dose could be use for technetium-99m ECD or technetium-99m HMPA0 for SPECT brain imaging

Back 11

D. 20 mCi

Front 12

Ictal SPECT and PET studies require an injection of radiopharmaceutical

Back 12

D. both A ( hearing a seizure) & B ( immediately after a seizure)

Front 13

HMPA0 and EDC our life of civic agents that do not significantly redistribute in the brain

Back 13

A. True

Front 14

Advantages of using ECD and HMPA0 for SPECT imaging of the brain include?

Back 14

D. all of the above. ( can be injected up to 6 hours after preparation, more rapid clearance from bloodstream, and better target the background ratio.)

Front 15

White matter has about 4 times greater blood flows and gray matter?

Back 15

B false

Front 16

Planar images of the brain using technetium-99m DTPA are obtained?

Back 16

A. immediately after the dynamic exam.

Front 17

The purpose of placing an elastic band on a patient's head just about the orbits during a radionuclide angiogram is?

Back 17

C. to decrease blood supply to small scalp vessels.

Front 18

The images obtained with a PET study using FDG 18 can best be described as?

Back 18

C metabolic

Front 19

In a Diamox challenge study, vascular disease will appear as decreased perfusion after the use of Diamox?

Back 19

A true

Front 20

The injection for a CSF shunt patency study is?

Back 20

D into the shunt reservoir or tubing.

Front 21

Sense which divert the flow of CSF are often used to treat?

Back 21

E. Both (A) communicating hydrocephalus and (B) non communicating hydrocephalus.

Front 22

Which of the following agents will cross an intact blood brain barrier?

Back 22

D. technetium-99m HMPA0

Front 23

Which radiopharmaceutical is not commonly used for brain perfusion imaging with SPECT?

Back 23

A. Technetium-99m DTPA

Front 24

A technologist neglect to give a patient potassium perchlorate before injection with 20 mCi of technetium-99m pertechnetate. How will this affect the static brain images taken at 1 hour after injection?

Back 24

B. Choroid plexus may be seen.

Front 25

Radionuclide angiography is most commonly used to?

Back 25

D. Confirm brain death.

Front 26

In which area is the radio pharmaceutical not visible in a normal cisternogram?

Back 26

C. Lateral ventricles.

Front 27

What is the usual dose or a radionuclide cisternogram in adults?

Back 27

C. 500 UCI of Indium 111 DTPA

Front 28

What is the purpose of pledget placement in a suspected CSF leak?

Back 28

C. To test them for contamination suggesting the presence of leaking CSF in the nose or ears.

Front 29

Why is indium 111 DTPA preferred over technetium-99m DTPA for cisternography in adults?

Back 29

C. Because it has a longer half-life allowing delayed imaging.

Front 30

Considerations for a successful SPECT imaging of the brain include?

Back 30

D. All of the above. ( minimizing sensory stimulation during injection, minimizing patient to go pick the distance, and immobilizing the patient.)

Front 31

To prepare a patient for DaTscan study, which of the following is correct?

Back 31

C. Thyroid blockage by SSKI prior to the study is required.

Front 32

For DaTscan study, which of the following is correct?

Back 32

B. DaTscan detects brain presynaptic dopamine transporter.

Front 33

To perform a DaTscan study which of the following is correct?

Back 33

D. A through C. ( imaging can be obtained 3 - 6 hours after tracer injection, dedicated head holder should be used, and the camera should be very close to the head.)

Front 34

For Amyvid PET study, which of the following is correct?

Back 34

D. Imaging can be started as soon as 30 minutes after tracer injection.

Front 35

To prepare a patient for ex DG - Pet of the brain, which of the following is correct?

Back 35

E. All of the above.( NPO at least 4 hours, no coffee or tea at least 12 hours prior to the study, blood sugar should be <200 mg/dl, and imaging can be started as soon as 30 minutes after tracer injection.)