NM Flashcards
Photoelectric effect is the…
interaction of a photon and electron
Which radionucleide has the longest decay
51Cr (false 18F, 99mTc, 81mKr)
Electromagnetic waves are not created by
electron capture
Which examination has the lowest radiation dose
lung ventilation scintigraphy
Which radiation can be shielded by paper Which radiation can be shielded by paper
alpha
Proper preparation before PET with 18F glucose
4 hours fasting
Material of the detector system of gammacamera
sodium iodide enriched by lithium
Myocardial perfusion scintigraphy
99mTc-MIBI
Generator based radionucleide
99mTc
Radionucleide with beta minus decay
131 I (Iodine)
Capillary blockage is the principle of Radionucleide imaging of
lung perfusion scintigraphy
Bone Scintigraphy shows solitary hot lesions in axial skeleton
Diagnosis: multiple bone metastastes
18F-fluorothymidine is marker of
DNA synthesis
Term of perfusion-ventilation mismatch means
failed perfusion in the space where the ventilation is preserved
What is not an advantage of 99mTc-DTPA
lower radiation dose burden
Meckel diverticulum
presence of ectopic mucosa and perchlorate
Somatostatine receptor Scintigraphy is used in detection
carcinoid tumor of small intestine
RadioIodine therapy contraindications
iv application of MRI contrast media
In imaging of ovarian carcinoma wit 18FDG PET/CT is true
hypermatobolic bone metastatses are typical
Labeling of sentinel l.n.
malignant melanoma
Which lesion remain usually undetected using labelled leukocytes
spondylodiscitiis
During myocardial stress perfusion scintigraphy
iv application of adenosine
Radioorthosynovectomy is
intraarticular application of 90Y
Why doesn’t the tissue accumulate 18Fdg, what is not true
tumorus tissue is usimg anaerobic glycolysis
Radionucleide not suitable for PET is
67Ga
What is not true? 18FDG accumulates quickly in
Lung tissue
Lung scintigraphy cant be used in suspected lung embolization in
asthma
Evacuation assessment of stomach exploits
rice labelled with 99mTc colloid
Detection of occult Gi bleeding is used
RBC labelled by 99mTc-pertechnate
The principle of immunoscintigraphy is
Abs labelled by radionuclide and scintigraphy
Radioiodine is accumulated in
thyroid follicular carcinoma
Radionavigated resection of l.n is not possible using
testicular carcinoma
Which radiation is the source of secondary bremsstrahlung
beta minus
Highest radiation dose after application of 18FDG during PET
bone marrow
Which organ obtains the lowest radiation during PET
lung tissue
PET has detector system made from
full detector ring
Hybrid imaging methods do not include
SPECT/MRI
Radionucleide created by decay of 18F
18O
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
-
Decay halftime is
time when the half of the Rns is decayed
Which radionuclide has the shortest decay lifetime
18F
Highest trajectory within tissue has radiation created by
alpha decay
18FDG PET/CT of the brain is not useful to
Assessment of Glioma Grade
Liquor Scintigraphy
othorohea/rhinorea
Radioembolization
hepatocellular carcinoma
Which of the following methods is not useful in osteomyelitis
?? 18F-FLT
- Which is not a diagnostic bone radiopharmaceutical
??
??
- Perfusion ventilation match is present in the space where lung tissue is involved by
??
??
- Almost equal distribution of the radiopharmaceutical within myocardium is present after stress perfusion scintigraphy than
??
??
- Myocardial Viability imaging is not possible using
??
??
- Lowest energy given to the tissue
??
??
- What is true
??
??
