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Study Type, Agent, and Dose?
3 hours

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24 hours
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Normal 111In-DTPA Cisternogram

  • Agent: 111In-Diethylenetriamine Pentaacetic (DTPA)
  • Adult Doses: 500 to 800 microCi Intrathecally
  • Critical Organ: Spinal cord

Notes:

  • Activity should reach the basal cisterns by 2 to 4 hrs. in adults
  • Activity should appear over the convexities of the brain by 24-48 hrs; if it does not, further delayed imaging is necessary
  • Activity within the lateral ventricles at any time is considered abnormal
  • 99mTc-DTPA is not used to evaluate CSF flow because of its short (6 hr.) T1/2
Tags
These signals are relayed buying clomid online safe which then is by a number of such as medial preoptic and paraventricular nulcei.
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