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Radiology Written > NM > Flashcards

NM Flashcards

1
Q

Photoelectric effect is the…

A

interaction of a photon and electron

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2
Q

Which radionucleide has the longest decay

A

51Cr (false 18F, 99mTc, 81mKr)

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3
Q

Electromagnetic waves are not created by

A

electron capture

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4
Q

Which examination has the lowest radiation dose

A

lung ventilation scintigraphy

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5
Q

Which radiation can be shielded by paper Which radiation can be shielded by paper

A

alpha

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6
Q

Proper preparation before PET with 18F glucose

A

4 hours fasting

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7
Q

Material of the detector system of gammacamera

A

sodium iodide enriched by lithium

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8
Q

Myocardial perfusion scintigraphy

A

99mTc-MIBI

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9
Q

Generator based radionucleide

A

99mTc

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10
Q

Radionucleide with beta minus decay

A

131 I (Iodine)

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11
Q

Capillary blockage is the principle of Radionucleide imaging of

A

lung perfusion scintigraphy

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12
Q

Bone Scintigraphy shows solitary hot lesions in axial skeleton

A

Diagnosis: multiple bone metastastes

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13
Q

18F-fluorothymidine is marker of

A

DNA synthesis

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14
Q

Term of perfusion-ventilation mismatch means

A

failed perfusion in the space where the ventilation is preserved

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15
Q

What is not an advantage of 99mTc-DTPA

A

lower radiation dose burden

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16
Q

Meckel diverticulum

A

presence of ectopic mucosa and perchlorate

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17
Q

Somatostatine receptor Scintigraphy is used in detection

A

carcinoid tumor of small intestine

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18
Q

RadioIodine therapy contraindications

A

iv application of MRI contrast media

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19
Q

In imaging of ovarian carcinoma wit 18FDG PET/CT is true

A

hypermatobolic bone metastatses are typical

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20
Q

Labeling of sentinel l.n.

A

malignant melanoma

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21
Q

Which lesion remain usually undetected using labelled leukocytes

A

spondylodiscitiis

22
Q

During myocardial stress perfusion scintigraphy

A

iv application of adenosine

23
Q

Radioorthosynovectomy is

A

intraarticular application of 90Y

24
Q

Why doesn’t the tissue accumulate 18Fdg, what is not true

A

tumorus tissue is usimg anaerobic glycolysis

25
Q

Radionucleide not suitable for PET is

A

67Ga

26
Q

What is not true? 18FDG accumulates quickly in

A

Lung tissue

27
Q

Lung scintigraphy cant be used in suspected lung embolization in

A

asthma

28
Q

Evacuation assessment of stomach exploits

A

rice labelled with 99mTc colloid

29
Q

Detection of occult Gi bleeding is used

A

RBC labelled by 99mTc-pertechnate

30
Q

The principle of immunoscintigraphy is

A

Abs labelled by radionuclide and scintigraphy

31
Q

Radioiodine is accumulated in

A

thyroid follicular carcinoma

32
Q

Radionavigated resection of l.n is not possible using

A

testicular carcinoma

33
Q

Which radiation is the source of secondary bremsstrahlung

A

beta minus

34
Q

Highest radiation dose after application of 18FDG during PET

A

bone marrow

35
Q

Which organ obtains the lowest radiation during PET

A

lung tissue

36
Q

PET has detector system made from

A

full detector ring

37
Q

Hybrid imaging methods do not include

A

SPECT/MRI

38
Q

Radionucleide created by decay of 18F

A

18O

39
Q

Electron positron pair is created during an interaction of the electromagnetic waves with the matter and
if the electromagnetic wave has an energy exceeding 1.02 MeV

A

-

40
Q

Decay halftime is

A

time when the half of the Rns is decayed

41
Q

Which radionuclide has the shortest decay lifetime

A

18F

42
Q

Highest trajectory within tissue has radiation created by

A

alpha decay

43
Q

18FDG PET/CT of the brain is not useful to

A

Assessment of Glioma Grade

44
Q

Liquor Scintigraphy

A

othorohea/rhinorea

45
Q

Radioembolization

A

hepatocellular carcinoma

46
Q

Which of the following methods is not useful in osteomyelitis

A

?? 18F-FLT

47
Q
  1. Which is not a diagnostic bone radiopharmaceutical

??

A

??

48
Q
  1. Perfusion ventilation match is present in the space where lung tissue is involved by

??

A

??

49
Q
  1. Almost equal distribution of the radiopharmaceutical within myocardium is present after stress perfusion scintigraphy than

??

A

??

50
Q
  1. Myocardial Viability imaging is not possible using

??

A

??

51
Q
  1. Lowest energy given to the tissue

??

A

??

52
Q
  1. What is true

??

A

??

Radiology Written (3 decks)

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