نتایج جستجو برای: technetium pertechnetate scintigraphy

تعداد نتایج: 22293  

Behrooz Shahrad, Mehdi Homayoonfar, Mohsen Saghari,

myocardial Scintigraphy ischemia can deor mc_mstrat_e mfarction. and It  has a higrs after onset of an mfarctl has a higrs after onset of an mfarctln and localizeh sensitivity in the first six to.twenty can belabelled pyrophosphate scan becomes four.  houuseful in the coronary care umt. The positive trction. Since the pyrophosphate scan 99mTc welve to twenty hours after onset of an becomes infa...

2003
Wayne W. Lukens David K. Shuh Norman C. Schroeder Kenneth R. Ashley

Technetium is a long-lived (Tc: 213,000 year half-life) fission product found in nuclear waste and is one of the important isotopes of environmental concern. The known chemistry of technetium suggests that it should be found as pertechnetate, TcO4, in the extremely basic environment of the nuclear waste tanks at the Hanford site. However, other chemical forms of technetium are present in signif...

2016
Twyla B. Bartel Tracy L. Yarbrough Lorraine E. De Blanche

We present the case of a 40-year-old male with multiple myeloma for whom bone marrow scintigraphy was utilized to help differentiate between active bony myelomatous disease versus treated lesions with compensatory marrow uptake. This case demonstrates technetium (Tc-99m) sulfur colloid imaging as an inexpensive technique to quickly distinguish between active focal bone disease and reactive marrow.

Journal: :Annals of nuclear medicine 2005
Seyda Türkölmez Derya Ors Meliha Korkmaz

We present a patient with left-sided obstructed megaureter secondary to neuropathic bladder. He was referred for technetium-99m dimercaptosuccinic acid ((99m)Tc-DMSA) renal cortical scintigraphy to evaluate renal cortical function. Images obtained 4 hr after injection showed significant activity in the dilated left ureter. When the ureter is visualized on DMSA scan, obstructive megaureter shoul...

2017
Jussara de Almeida Bruno Rafael Amorim Belo Nunes Paulo Sampaio Gutierrez Vera Demarchi Aiello

Her technetium-99m diethylenetriaminepentaacetic acid (99mTc-DTPA) radioaerosol inhalation lung scintigraphy (May 21, 2008) revealed marked hypoventilation of the left lung and retention of the radiotracer in the right peri-hilar region, suggestive of a parenchymal process. The use of 99mTC human albumin macroaggregates (99mTC MAA) revealed no perfusion in the left lung and perfusion defects in...

Journal: :Current problems in cardiology 2007
Arend F L Schinkel Jeroen J Bax Don Poldermans Abdou Elhendy Roberto Ferrari Shahbudin H Rahimtoola

Approximately 50% of the patients with chronic obstructive coronary artery disease resulting in chronic contractile dysfunction have hibernating myocardium and may benefit from revascularization. This pooled analysis describes the relative merits of dobutamine echocardiography, thallium-201 and technetium-99m scintigraphy, positron emission tomography, and magnetic resonance imaging, for the di...

2005
STEVEN C. KLAUSNER Steven C. Klausner

To evaluate the application of radionuclide infarct scintigraphy to diagnose myocardial infarction after revascularization, we obtained postoperative technetium 99m pyrophosphate myocardial scintigrams, serial electrocardiograms and CPK-MB isoenzymes in ten control and 51 revascularized patients. All control patients had negative electrocardiograms and scintigrams, but eight had positive isoenz...

Journal: :Annals of nuclear medicine 2003
Toyotsugu Ota Shigeru Kusaka Masahiro Mizuno

We encountered a case of splenic pseudotumor. It contained a cystic portion, and the solid portion of the mass showed much higher vascularity than the proper spleen on dynamic CT. An accessory spleen was considered most likely, but the differential diagnosis still included malignant lymphoma and metastatic tumor. The diagnosis was obtained by technetium-99m Sn colloid scintigraphy.

Journal: :Annals of the rheumatic diseases 1987
B D Williams M M O'Sullivan G S Saggu K E Williams L A Williams J R Morgan

Technetium labelled, negatively charged, unilamellar liposomes were given by intravenous injection to patients with rheumatoid arthritis and the joints scanned 20-22 hours later. Positive scintigraphy was obtained in all six patients with active disease, and, with the exception of the small interphalangeal joints, all clinically involved joints could be visualised.

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