Imaging and MOL, CO, TO

Question 1

Tc99m MAA

Answer 1

MOL Capillary Blockade
CO Lung
TO lung
Dose: 2-8 mCi

Question 2

Tc99m DMSA (Morphology)

Answer 2

MOL Active Transport
CO Kidneys
TO Renal Cortext of the kidney

Question 3

Hepatobiliary R/Ps

Answer 3

HIDA
DISIDA
Mebrofenin
Hepatolite

MOL: Active Transport
TO: GB/Liver
CO: Large intestine wall or GB wall

Question 4

Gastric Emptying Studies

Answer 4

Solid: Tc99m Sulphur Colloid.
Liquid: In111 DTPA

MOL: Compartmental
TO: Stomach
CO: Stomach/upper lg. intestine

Question 5

Liver/Spleen

Answer 5

R/P: Tc99m Sulpher Colloid
MOL: Phagocytosis
TO: Liver/ Spleen
CO: Liver or Spleen

Question 6

Denatured RBC

Answer 6

R/P: Heat Damaged Tc99m RBC
MOL: Cell Sequestration
TO: Accessory Splenic tissue
CO: Liver or Spleen

Question 7

GI Bleed

Answer 7

R/P: Tc99m RBC and Tc99m Sulphur Colloid
MOL: Compartmental
CO: Spleen or Heart

Question 8

Meckels Diverticulum

Answer 8

R/P: Tc99m 04- (pertechnetate)
MOL: Active Transport
CO: Stomach, Thyroid

Question 9

Hemangioma

Answer 9

R/P: Tc99m RBC
MOL: Compartmental
CO: Spleen, Heart

Question 10

MPI: Thallous Chloride

Answer 10

CO: Kidney, Thyroid
TO: Myocardium

Question 11

MPI: Tc99m Sestamibi (Cardiolite)

Answer 11

MOL: Passive Diffusion/Transport
CO: Large Bowel
TO: Myocardium
10 min boil or heating

Question 12

Tc99m Testrofosmin (Myoview)

Answer 12

MOL: Passive Diffusion/Transport
CO: Large Bowel
TO: Myocardium
No heating or boiling

Question 13

Vascular Imaging: Tc99m RBC

Answer 13

MOL: Compartmental
CO: Depends
TO: Depends
Dose: 20-30 mCi

Question 14

In Vitro

Answer 14

CO: heart and spleen
TO: varies
Dose: 25-35 mCi pertechnetate

Question 15

MDP and HDP

Answer 15

MOL: Chemisorption
CO: Bone surface or bladder
TO: Bone
Dose: 20-30 mCi

Question 16

NaF18 Sodium Flouride

Answer 16

MOL: Passive Diffusion
MOD: Positron Decay
CO: Urinary Bladder Wall
TO: Bone surface

Question 17

Pertechnetate

Answer 17

CO: Stomach and Thyroid
TO: Depends on which type of study

Question 18

Ga67 Citrate

Answer 18

Gallium goes with chronic infections.
CO: Bone marrow, spleen, liver
TO: Varies, depending on site of infection
Dose: 5-10 mCi

Question 19

In111 WBC and Tc99m HMPAO

Answer 19

Acute infections and better for hands and feet due to higher count rate than In111.

MOL: WBC migration through Chemotaxis
CO: Depends
TO: Depends
Dose: 500 uCi - 1.0 mCi