Tc-99m pertechnetate
Updates to Article Attributes
Body
was changed:
Tc-99m pertechnetate is one of the technetium radiopharmaceuticals used in imaging of thyroid, colon, bladder and stomach.
Characteristics
- photon energy: 140 keV
- physical half
life-life - biological half
life-life: 6 hours - normal distribution: stomach, thyroid, salivary glands, (testicles)
- excretion: renal, GI
- target organs: thyroid, colon, bladder, stomach
Uses, doses and timings
- testicular
- adult dose: 10 mCi IV
-
pediatricpaediatric dose: 250 mCi/kg (minimum 2 mCi) - time of imaging: 60
second-second flow study with delayed static images
-
Meckel's diverticulum
- adult dose: 10 mCi IV
- pediatric dose: 30-100 mCi/kg (min 2.0 mCi)
- time of imaging: immediate (1 frame/s x 60 s then q 5-10 min x 1 hr)
- thyroid
- adult dose: 1-10 mCi IV (usually 3-5 mCi)
- time of imaging: 20 minutes
- parathyroid subtraction
- adult dose: 1-2 mCi IV
- time of imaging: image for 15 minutes after Tl-201 injection and imaging
See also
-<li>physical half life</li>-<li>biological half life: 6 hours</li>- +<li>physical half-life</li>
- +<li>biological half-life: 6 hours</li>
-<li>pediatric dose: 250 mCi/kg (minimum 2 mCi)</li>-<li>time of imaging: 60 second flow study with delayed static images</li>- +<li>paediatric dose: 250 mCi/kg (minimum 2 mCi)</li>
- +<li>time of imaging: 60-second flow study with delayed static images</li>
-<li>Meckel's<ul>- +<li>
- +<a title="Meckel's diverticulum" href="/articles/meckel-diverticulum-1">Meckel's diverticulum</a><ul>