^99mTechnetium (^99mTc)

6h

140

Pertechnetate

Thyroid—diagnostic imaging

5

20min

GI—Meckel scan^a

5

0

Testes—torsion

10

0

HMPAO

Brain—perfusion SPECT

20

20 min

Pyrophosphate

Cardiac—infarct

15

2 h

RBC

Cardiac—gated ventriculography (MUGA)

20

0

GI—bleeding scan

20

0

Liver—SPECT for hemangioma

20

0

Sestamibi

Cardiac—perfusion^b

25

30-60 min

Parathyroid—adenoma

20

0 + 2 h

Teboroxime

Cardiac—perfusion

25-30

0

Sulfur colloid

GI—gastric/esophageal emptying for liquids

1

0

GI—gastric/esophageal emptying for solids

0.5

0

Liver—SPECT for mass

5

5 min

IDA derivative

Liver—cholecystitis, biliary atresia^c

5

0

MAA

Lung—perfusion

3

0