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Related Experiment Videos

113mIn-labeled bone scanning agents.

A G Jones, M A Davis, M K Dewarjee

    Radiology
    |December 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    New phosphonate analogs, 113mIn-DTPMP and 113mIn-EDTMP, show promise as skeletal imaging agents. 113mIn-DTPMP is a viable alternative to 85Sr for bone imaging where 99mTc is unavailable.

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    Area of Science:

    • Radiopharmaceutical chemistry
    • Nuclear medicine imaging
    • Skeletal imaging

    Background:

    • Ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA) are chelating agents.
    • Phosphonate analogs of EDTA and DTPA, DTPMP and EDTMP, were synthesized.
    • 113mIn is a radioisotope suitable for medical imaging.

    Purpose of the Study:

    • To evaluate 113mIn-labeled DTPMP and EDTMP as skeletal imaging agents.
    • To assess the suitability of 113mIn-DTPMP as a bone-seeking radiopharmaceutical.

    Main Methods:

    • Labeling DTPMP and EDTMP with 113mIn.
    • Organ distribution studies in rats.
    • Blood clearance studies in dogs.
    • Skeletal imaging in rabbits.

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    Main Results:

    • 113mIn-DTPMP demonstrated favorable characteristics for skeletal imaging.
    • Organ distribution and blood clearance data support its potential use.
    • Rabbit imaging showed uptake in bone structures.

    Conclusions:

    • 113mIn-DTPMP is a promising skeletal imaging agent.
    • It can serve as an alternative to 85Sr in regions lacking 99mTc.
    • Further evaluation is warranted for clinical application.