Search results for "Technetium Tc 99m Pentetate"

showing 3 items of 3 documents

Physico-chemical study of the radiopharmaceuticals 99mTc-DMSA, 99mTc-EDTA and 99mTc-DTPA interaction with plasmatic proteins.

1989

This report studies the binding rate of the radiopharmaceuticals 99mTc-DTPA, 99mTc-EDTA and 99mTc-DMSA to plasmatic proteins. The proteins bind to the tested radiopharmaceuticals in the following sequence: 99mTc-DTPA less than 99mTc-DMSA(C1) less than 99mTc-EDTA less than 99mTc-DMSA(C2) where C1 and C2 represent two different Tc-DMSA complexes. The thermodynamic study suggests a quantitative relationship of radiopharmaceutical:protein = 1:1 and an almost nonexistent influence of the temperature, which means that the interacting forces in this process are relatively weak.

99mtc dtpaPentetic acid99mTc-DMSAGeneral Engineeringchemistry.chemical_elementTechnetiumPlasma protein bindingBlood ProteinsOrganotechnetium CompoundsPentetic AcidTechnetiumBlood proteinschemistry.chemical_compoundchemistryBiochemistryTechnetium Tc 99m Dimercaptosuccinic AcidTechnetium Tc 99m PentetateEdetic AcidTechnetium Tc 99m Dimercaptosuccinic AcidSulfhydryl CompoundsSuccimerEdetic AcidProtein BindingInternational journal of radiation applications and instrumentation. Part A, Applied radiation and isotopes
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A simple method of bronchoprovocation using a valved holding chamber.

2004

This study was undertaken to ascertain whether the use of a valved holding chamber (VHC) during bronchial provocation testing might increase lung deposition and repeatability of the test relative to the tidal breathing method. The 2-min tidal breathing results were compared to five inhalations from a VHC device in patients using the Pari-provoII nebulizer (MMD = 2.1mkm). Lung and mouth deposition, losses though the exhaled air and losses before aerosol delivery to the patient's mouth were measured in patients using a radiolabeled 99Tc-DTPA solution and gamma camera. The study revealed that lung deposition was 67% with the VHC method, and losses with exhaled air were 29% of the inhaled amoun…

Pulmonary and Respiratory Medicinemedicine.medical_specialtyBronchial Provocation TestsTidal VolumeMedicineHumansPharmacology (medical)In patientRadionuclide ImagingLungAerosolsLungbusiness.industryNebulizers and VaporizersRepeatabilityrespiratory systemHOLDING CHAMBERrespiratory tract diseasesSurgeryAerosolNebulizermedicine.anatomical_structureBronchial provocationTechnetium Tc 99m PentetateRadiopharmaceuticalsbusinessNuclear medicineDeposition (chemistry)Journal of aerosol medicine : the official journal of the International Society for Aerosols in Medicine
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G.F.R. measuring with 99mTc-DTPA: limits in obstructive acute renal failure.

1991

After a short introduction on the advantages and limits of G.F.R. determination with Ccr, the radioisotopic methods proposed by Schlegel and Gates for this parameter are described, and as well as ERPF and FF, without blood serial samples being necessary. In a severe renal failure case due to obstruction, the Authors have found a great mismatch in the results between the traditional methods and the radioisotopic ones. After the clinical case description, a possible explanation of this discrepancy is proposed: Schlegel and Gates' methods, which well correlate Ccr in chronic renal failure cases, in severe renal failure on obstructive basis, of recent onset, could not indicate the effective glo…

Settore MED/14 - NefrologiaSettore MED/09 - Medicina InternaAcute Kidney Injury/physiopathology* Female Glomerular Filtration Rate* Humans Middle Aged Technetium Tc 99m Pentetate/diagnostic use*HumansTechnetium Tc 99m PentetateFemaleAcute Kidney InjuryMiddle AgedSettore MED/45 - Scienze Infermieristiche Generali Cliniche E PediatricheGlomerular Filtration RatePanminerva medica
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