Major Subclassification Of Nucmed

Question 1

What is vivo

Answer 1

Living subject

Question 2

What is under diagnostic procedures

Answer 2

Imaging studies
Non imaging studies

Question 3

for brain, liver, lung, bone, kidney, heart, thyroid, and other
organs for detection of a tumor. Whole body imaging for the detection of
metastases

Answer 3

Imaging studies

Question 4

are thyroid uptake to determine thyroid function,
renography for the investigation renal function, and blood volume measurement

Answer 4

Non imaging studies

Question 5

treatment of
Hyperthyroidism with I-131

Answer 5

Therapeutic Procedure

Question 6

In a glass

Answer 6

Vitro

Question 7

What is under Therapeutic Procedure

Answer 7

Biomedical analysis
Radioimunoassay

Question 8

measurement of hormones,
enzymes, and other
substances

Answer 8

RIA

Question 9

Unsealed

Answer 9

Open

Question 10

Two class of nuclear imaging

Answer 10

Positron imaging
Single photon imaging

Question 11

Single Photon emission Computed
tomography (SPECT)
- Uses radionuclides that decay by gamma emission

Answer 11

Single photon imaging

Question 12

Positron Emission Tomography (PET)
- Uses radionuclide that decay by positron emission

Answer 12

Positron imaging

Question 13

Types of detectors

Answer 13

Gas filled detectors
Scintillation detectors

Question 14

Those that depend on ionization in
which ionization is translated into electric current or impulses.

The use of an ionization chamber. The generic design concept
is a gas-filled chamber with positive and negative electrodes,

Answer 14

Glass filled detectors

Question 15

those that depend on excitation.

Answer 15

Scintillation detectors

Question 16

3 types of scintillation detectors

Answer 16

1. Proportional Counters
2. Ionization Chamber (IC)
3. Gieger-Mueller Counters

Question 17

Are very sensitive type of personnel monitoring
device

Answer 17

Pocket dosimeter

Question 18

Device that is used to measure
Radioactivity before Injecting to the
Patient

Answer 18

Dose calibrator

Question 19

main difference between a proportional counter and basic
ionization chamber is greater applied voltage between electrodes

useful is their ability to distinguish between
alpha and beta radiation.

Answer 19

Proportional counter

Question 20

instrument for detecting and measuring the intensity of
ionizing radiation

Used as a survey meter

Answer 20

Geiger-Mueller Counter

Question 21

This type of detector is the most commonly
used detector in nuclear medicine.

Answer 21

Scintillation detectors

Question 22

output signal form accumulated charge in radiation detectors is
typically quite low

Answer 22

Pre amplifier

Question 23

main purposes of the preamplifier

Answer 23

To amplify, if necessary, small signals from detectors
2. To shape signals for remaining signal processing

Question 24

output signal form the preamplifier can still be quite low for traditional electronics in signal
processing chain

To amplify, the still relatively small pulses from the preamplifier
2. To reshape the long signals from the preamplifier to minimize pulse-pileup at high
count rates and improve SNR

Answer 24

Amplifier

Question 25

Is an electronic device used to determine which portion of
the detected spectrum is used to create images.

Answer 25

Pulse Height Analyzer

Question 26

Types of collimator

Answer 26

Pinhole Collimator
• Parallel hole Collimator
• Converging Multihole Collimator
• Diverging Multihole Collimator

Question 27

HIGHEST RESOLUTION
This type of collimator provides the best spatial
resolution and the lowest sensitivity of any
collimator used in nuclear medicine

USED IN THROID SCANS

Answer 27

Pin hole collimator

Question 28

MOST COMMON TYPE OF
COLLIMATOR

Answer 28

Parallel hole collimator

Question 29

Provides both enhanced spatial
resolution and improved
sensitivity

Answer 29

Converging collimator

Question 30

Used for imaging smaller objects
(similar to pinhole) using a camera
with a large FOV.

Used to achieve magnified
image with slightly improved
spatial resolution.

Answer 30

Converging collimator

Question 31

3 parts of PMT

Answer 31

1. Photocathode
2. Dynode
3. Anode (collecting anode)