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    (technetium Tc 99m generator)

    Our investment in shielding helps improve radiation protection.

    Full US prescribing information

     Shielding Image


    • Significant investment in internal shielding (lead, tungsten, and depleted uranium) helps provide reliable radiation protection across all 13 of our generator size offerings.
    • Three dimensional design of our external auxiliary shielding coupled with the wet column mechanics of our generator may help reduce radiation exposure during use.

    • The Duosafe™ tungsten elution tool and alignment adaptor, designed from customer input, were developed to enhance your Mallinckrodt generator experience.

    •  The radiation protection program established through our offerings helps you keep dose As Low As Reasonably Achievable (A.L.A.R.A.).

  • Shielding Investment

     Shielding Investment
    Our investment in depleted uranium helps improve your radiation protection program.

    Mallinckrodt is leading the industry with significant investment in DU shields for our 6.0 Ci through 19.0 Ci generator offerings. This improved shielding can help provide you a low exposure alternative.

    Shielding Efficiency

    Shielding Efficiency

    Increased  shielding capabilities can impact radiation exposure.

    When comparing 7.5 Ci generators, depleted uranium provides shielding capabilities of greater than 5 times that of lead and tungsten. With more than double the activity, from a 7.5 Ci to 19.0 Ci generator, only slight increases in TI are seen.


    Sodium Pertechnetate Tc 99m is used IN ADULTS as an agent for:

    • Brain Imaging (including cerebral radionuclide angiography)
    • Thyroid Imaging
    • Salivary Gland Imaging
    • Placenta Localization
    • Blood Pool Imaging (including radionuclide angiography)
    • Urinary Bladder Imaging (direct isotopic cystography) for detection of vesico-ureteral reflux
    • Nasolacrimal Drainage System Imaging (dacryoscintigraphy)

    Sodium Pertechnetate Tc 99m is used IN PEDIATRIC PATIENTS as an agent for:

    • Brain Imaging (including cerebral radionuclide angiography)
    • Thyroid Imaging
    • Blood Pool Imaging (including radionuclide angiography)
    • Urinary Bladder Imaging (direct isotopic cystography) for the detection of vesico-ureteral reflux



    • Radiation risks associated with the use of Sodium Pertechnetate Tc 99m are greater in pediatric patients than in adults and, in general, the younger the patient the greater the risk owing to greater absorbed radiation doses and longer life expectancy. These greater risks should be taken firmly into account in all benefit risk assessments involving pediatric patients.
    • Only use generator eluant specified for use with the Ultra-Technekow DTE Generator. Do not use any other generator eluant or saline from any other source.
    • As in the use of any radioactive material, care should be taken to minimize radiation exposure to the patient consistent with proper patient management and to insure minimum radiation exposure to occupational workers.
    • Radiopharmaceuticals should be used only by physicians who are qualified by training and experience in the safe use and handling of radionuclides and whose experience and training have been approved by the appropriate government agency authorized to license the use of radionuclides.
    • After the termination of the nasolacrimal imaging procedure, blowing the nose and washing the eyes with sterile distilled water or an isotonic sodium chloride solution will further minimize the radiation dose.
    • Since the eluate does not contain an antimicrobial agent, it should not be used after 12 hours from time of generator elution.


    • Serious adverse reactions may include anaphylaxis.


    •  Breastfeeding: should be discontinued because Technetium Tc 99m is excreted in human milk.