Re: Dual Radionuclide Stress Test

[Joel L Lazewatsky <joel.lazewatsky@bms.com>]

Tom,

The test you are referring to is a myocardial perfusion study. 

The two compounds are Cardiolite(r) a Tc-99m-labeled compound (or its competitor,

Tc-99m tetrafosmin or Myoview), and Tl-201 (as thallous chloride). 

The two compounds are commonly used in sequence to measure the blood flow

to the heart wall under resting and stressed conditions respectively. 

The mismatch between the two indicates the presence of flow limitations

to specific portions of the heart muscle.  For more information, look

at www.cardiolite.com.  Cardiolite is a product of Bristol-Myers Squibb

Medical Imaging.  Myoview is a product of Amersham Health and distributed

in the US by the Malinckrodt Imaging unit of Tyco Healthcare.  Tl-201

is available from all three companies, I believe.

Joel

Date: Sun, 1 Sep 2002 15:07:53 -0700
From: "Tom O'Dou" 
Subject: Dual Radionuclide Stress Test

A friend asked me about a dual radionuclide stress test.  He said some
previous tests had identified an enlarged heart muscle.  Does anyone have
any information on this test like - what it is - what radionuclides are
used - how the test is done - and what data is provided to determine what?

Tom O'Dou, CHP, RRPT
radware@lvcm.com
www.rad-ware.com

___________________________________________________________________________________

Any opinions expressed are exclusively my own and do not necessarily

represent those of my employer.

Joel Lazewatsky, Ph.D.    joel.lazewatsky@bms.com

Principal Research Scientist    Tel: 978-671-8127; FAX:

978-667-3926

Bristol-Myers Squibb Medical Imaging

331 Treble Cove Road

N. Billerica, MA 01862

___________________________________________________________________________________