Community Forum top_calendar.gif top_members.gif top_faq.gif top_search.gif top_home.gif    

Go Back   Community Forum > The Internet Medical Journal > News
User Name
Password
FAQ Members List Calendar Search Today's Posts Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old July 4th, 2004, 12:22
sysadmin sysadmin is offline
Administrator
 
Join Date: 2001
Posts: 1,085
Tc-99m-tetrofosmin thyroid scan in patients with low I-131 thyroid uptake.

Low 24-hour thyroid uptake of I-131 (I-131 uptake) is a common finding that influences evaluation of the thyroid gland. METHODS: We studied 20 female patients aged 16-82 years with low I-131 uptake. The following causes of reduced I-131 uptake were defined as (A) six cases with subacute thyroiditis, (B) seven cases with T4 suppression therapy, and (C) seven cases with iodinated pharmaceuticals use. Thirty-minute Tc-99m tetrofosmin thyroid scan was performed within 24 hours of the I-131 thyroid study. RESULTS: The results were correlated with neck ultrasound, serum TSH and biopsy histopathological findings. Tc-99m tetrofosmin thyroid scans revealed 10 normal thyroids, five diffuse goiters, four multinodular goitres, and one solitary thyroid nodule. CONCLUSIONS: Our results suggest that Tc-99m tetrofosmin thyroid scans may provide additional information to diagnose thyroid pathology in patients with low 24-hour I-131 uptake. COMMENT: there are several factors that may suppress uptake of radioiodine by the thyroid, including diet, inflammation, and medications. Tc-99m Tetrofosmin is useful because it overcomes these complicating factors. Thus, it is inappropriate to assume that all patients needing a thyroid scan should be taken off of their thyroid hormone replacement therapy, because Tc-99m tetrofosmin can be used in these patients. Also, Tc-99m pertechnetate may be useful when the patient remains on thyroid hormone therapy, because an autonomously functioning thyroid nodule is TSH independent.


Endocr Res. 2002 Aug;28(3):231-8.

Tc-99m-tetrofosmin thyroid scan in patients with low I-131 thyroid uptake.

Wang TY, Wu HS, Lin CC, Lee CC, Kao CH.

Division of Endocrinology and Metabolism, China Medical College Hospital, Taichung, Taiwan.

http://www.ncbi.nlm.nih.gov/entrez/...t_uids=12489572
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Novel Molecular Imaging Procedure Used to Identify Metastatic Prostate Cancer sysadmin News 0 June 27th, 2004 10:12
Confronting the New Health Care Crisis sysadmin News 0 August 14th, 2002 19:28
Meta-analysis: Mycobacterium avium subsp. paratuberculos in Crohn's Disease sysadmin Articles 0 September 24th, 2001 14:48


All times are GMT -8. The time now is 22:45.


Powered by: vBulletin Version 3.0.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.



Be careful about reading health books. You may die of a misprint.  
- Mark Twain (1835 - 1910)

We are committed to your good health. That means that while we provide editorial medical information, we must insist that you work with your own doctor in regards to your personal health issues. All content on Medjournal.Com is strictly editorial. It constitutes medical opinion, NOT ADVICE. We do not endorse or recommend the content of Medjournal.com or the sites that are linked FROM or TO Medjournal.com. Use common sense by consulting with your doctor before making any lifestyle changes or other medical decisions based on the content of these web pages. Medjournal.Com and the Internet Medical Journal shall not be held liable for any errors in content, advertising, or for any actions taken in reliance thereon.