Technetium pyrophosphate scintigraphy indicated marked diffuse myocardial uptake of technetium pyrophosphate, strongly suggesting transthyretin cardiac amyloidosis, which was firmly confirmed by a left ventricular endomyocardial biopsy. (biomedcentral.com)
Technetium pyrophosphate scintigraphy was extremely useful for definitive diagnosis. (biomedcentral.com)
These findings suggests that calcification inhibitors, and possibly other calcium-blocking agents, may alter the sensitivity of Tc-99m PYP myocardial scintigraphy, but the specific effects of each calcium antagonist must be evaluated. (elsevierpure.com)
13. Bokhari S, Castaño A, Pozniakoff T, Deslisle S, Latif F, Maurer MS. (99m)Tc-pyrophosphate scintigraphy for differentiating light-chain cardiac amyloidosis from the transthyretinrelated familial and senile cardiac amyloidoses. (ac.ir)
Myocardial3
This study was performed to test the hypohesis that EHDP would interfere with the process of calcium uptake and deposition in evolving myocardial infarction and thereby influence other parameters, including technetium-99m pyrophosphate (Tc-99m PYP) uptake and scintigraphic visualization of the infarcts. (elsevierpure.com)
Positive relationships were demonstrated between myocardial Tc-99m PYP and calcium levels in the EHDP-treated dogs (r=0.69) and the control dogs (r=0.77). (elsevierpure.com)
however, it produced a greater reduction in Tc-99m PYP uptake in the infarcts, probably by complexing with Tc-99m PYP binding sites and by dilution of Tc-99m PYP in circulating diphosphonate pool. (elsevierpure.com)
Cardiac1
4. Lu Y, Groth JV, Emmadi R. Cardiac amyloidosis detected on tc-99m bone scan. (ac.ir)
Sodium1
Inhibits bone resorption as a sodium salt and complexed with technetium Tc 99m for bone imaging. (jairadhesales.co.in)
Scintigraphy4
Echocardiography, 99m Technetium (Tc)-pyrophosphate scintigraphy, and myocardial biopsy confirmed her diagnosis as TTR-related amyloidosis. (elsevierpure.com)
1. Amyloid deposits in cardiac or non-cardiac tissue confirmed by Congo Red (or equivalent) staining OR technetium scintigraphy with 99m Tc-pyrophosphate with Grade 2 or 3 cardiac uptake in the absence of abnormal light chains ratio, 2. (who.int)
14. Effects of acute administration of ethane hydroxydiphosphonate (EHDP) on skeletal scintigraphy with technetium-99m methylene diphosphonic acid (Tc-MDP) in the rat. (nih.gov)
Gastrointestinal bleeding scintigraphy performed with 99m Tc-labeled autologous erythrocytes or historically with 99m Tc-sulfur colloid has been a clinically useful tool since the 1970s. (snmjournals.org)
Diethylenetriamine Pentaacetic Acid1
A ventilation study is performed after inhalation of tracers such as xenon-133 ( 133m Xe) gas, krypton ( 81m Kr), or technetium-99m( 99m Tc)-labelled aerosols of diethylenetriamine pentaacetic acid ( 99m Tc-DTPA) or 99m Tc-labelled carbon microparticles ( 99m Tc-technegas). (cadth.ca)
Human Serum A3
described the use of 99m Tc-human serum albumin for gastrointestinal bleeding ( 2 ). (snmjournals.org)
A variety of 99m Tc-liposome formulations were compared with common lymphoscintigraphic agents, including 99m Tc-labeled regular sulfur colloid and 99m Tc-labeled human serum albumin, besides assisting the use of positively charged liposomes in rabbits. (snmjournals.org)
This research aimed to study the lymph node delivery system by adding liposomes to different lymphoscintigraphic tracers such as 99m Tc-human serum albumin (HSA) and 99m Tc-sulfur colloid. (snmjournals.org)
Colloid1
at the University of Pennsylvania, originally described evaluating gastrointestinal bleeding with scintigraphic methods using 99m Tc-sulfur colloid ( 1 ). (snmjournals.org)
Thallium2
Delayed views of up to 3 hr postinjection were also obtained.Technetium-99m-pertechnetate was used for thyroid delineation.The tetrofosmin/99mTc-pertechnetate subtraction scan (TF/TC), thesingle-tracer washout technique and the thallium/technetium subtraction (TL/TC) were compared. (fdocuments.net)
Attenuation is more likely with technetium-99m ( 99m Tc) than with radioactive thallium 201 (Tl-201). (msdmanuals.com)
Tetrofosmin2
Static imaging with 201TIwas performed first, immediately followed by a 30-min ""Tc-tetrofosmin dynamic study. (fdocuments.net)
Comparing adenomas to hyperplasia in respect to tetrofosmin retention,a statistically significant difference was observed (p = 0.005).Conclusion: Technetium-99m-tetrofosmin is suitable for parathyroid imaging. (fdocuments.net)
Perfusion1
Perfusion studies are performed after intravenous injection of 99m Tc-labelled macroaggregated albumin ( 99m Tc-MAA) particles. (cadth.ca)
Radioactive1
Technetium is a silvery-grey radioactive metal with an appearance similar to platinum. (bionity.com)
Radiation2
For nursing mothers who work with Tc 99m substances in their workplace, there is no need to take any precautions other than those appropriate for general radiation protection. (nih.gov)
15. Radiation absorbed dose from technetium-99m-labeled bone imaging agents. (nih.gov)
Gamma3
Tc 99m is a gamma emitter with a principal photon energy of 140 keV and a physical half-life of 6.04 hours. (nih.gov)
Its short-lived gamma-emitting nuclear isomer 99m Tc ( technetium-99m ) is used in nuclear medicine for a wide variety of diagnostic tests. (bionity.com)
99 Tc is used as a gamma ray -free source of beta particles. (bionity.com)
Diagnostic3
Information in this record refers to the use of technetium Tc 99m pyrophosphate (Tc 99m PYP) as a diagnostic agent. (nih.gov)
A US Nuclear Regulatory Commission subcommittee has recommended that nursing be discontinued for 24 hours after administration of all technetium Tc 99m diagnostic products to simplify guidance recommendations, although this time interval may be longer than necessary. (nih.gov)
99m Tc-liposome imaging can be used to develop novel liposome compositions with improved cardiac diagnostic and drug delivery characteristics. (snmjournals.org)
Biological2
Technetium plays no natural biological role and is not normally found in the human body. (bionity.com)
5. Tc-99m hydroxymethylene diphosphonate and Tc-99m methylene diphosphonate: biological and clinical comparison: concise communication. (nih.gov)
Nuclear2
Most technetium produced on Earth is a by-product of fission of uranium-235 in nuclear reactors and is extracted from nuclear fuel rods. (bionity.com)
This study assessed the use of 99m Tc-liposome agents for nuclear medicine purposes. (snmjournals.org)
Agents3
Similarities in biodistribution and biokinetics betweenthese two technetium agents (19,20) have triggered researchtoward the same fields of application. (fdocuments.net)
Comparison of Tc-99m hydroxymethylene diphosphonate (HMDP) with other technetium-labeled bone-imaging agents in a canine model. (nih.gov)
Then, they were injected with different 99m Tc-liposome agents subcutaneously in the dorsum of each hind foot over the region of the metatarsals at the midline, as well as intravenously. (snmjournals.org)
Comparison2
12. Comparison of tc-99m MDP, HMDP, and DPD with respect to bone-to-soft tissue ratios. (nih.gov)
19. A comparison of bone imaging with Tc-99m DPD and Tc-99m MDP: concise communication. (nih.gov)
Hours1
1 ] The effective half-life of Tc 99m PYP averages 3.5 hours. (nih.gov)
Superior1
Technetium-99m radiochemical assay by rapid filtration: a superior alternative to chromatography. (nih.gov)
Results2
Results: The overall sensitivity, specificity and accuracy of TF/TC and TL/TC were 76%, 92%and 83% and 52%, 85% and 65%, respectively. (fdocuments.net)
The results are compared to thoseof the conventional TL/TC subtraction scan. (fdocuments.net)