Tc 99 DECAY SCHEME
Tc 99 most commonly used for radioisotope imaging
COPYRIGHT (SUMER)
Tc 99 DECAY SCHEME
![]()
Reviewed by Sumer Sethi
on
Friday, November 05, 2004
Rating:
Sumer Sethi
Unique blend of academic excellence and entrepreneurship, heading leading firms in India- Teleradiology Providers, pioneering company providing teleradiology services and DAMS (Delhi Academy of Medical Sciences) Premier test preparation institute in India for MD/MS/MCI preparation. He has also been an invited faculty member at various conferences, including Teleradiology in IRIA 2008 and 2011, Hospital Build Middle East, Congress of the Brain Tumor Radiology in Neuro-oncology Society. Dr. Sethi is Editor-in-Chief of Internet Journal of Radiology. He has a keen interest in Web 2.0 technologies and in maintaining his famous radiology blog, which has been featured in multiple international journals.
4 comments:
this is the decay scheme of Tc99..
how is Tc99 used in breast cancer?
For assessment of bone metasttasis
Definition of Technetium tetrofosmin scintimammography
Technetium tetrofosmin scintimammography: Scintimammography is an imaging technique that uses a radioisotope (a radioactive substance) to help visualize the breast and find cancer.
Sumer Sethi
Scintimammography using the radioisotope technetium tetrofosmin (Tc-99 tetrofosmin) can detect breast cancer sometimes in situations in which there is considerable uncertainty, as with dense breast tissue. (Dense breast tissue is particularly difficult to decipher by standard mammography.)
Women with dense breasts have a high incidence of false positives with standard mammography -- test results that appear "falsely" positive in the absence of cancer. The false positives lead to unneeded biopsies and anxiety.
The Tc-99 tetrofosmin scan is especially valuable in these women, who are often younger women and have not gone through menopause. Breast malignancies typically show increased uptake of the Tc-99 tetrofosmin as compared to benign growths. In one study, Tc-99 tetrofosmin test had an accuracy of nearly 90%, while standard mammography yielded a significantly lower value.
Scintimammography with technetium tetrofosmin (Tc-99 tetrofosmin) has been approved by the US Food and Drug (FDA) for the diagnosis of breast cancer. The technique is not meant to replace standard mammography and other current tests, but to be used in conjunction with them.
Post a Comment