T1

In magnetic resonance, the time for 63% of longitudinal relaxation to occur; the value is a function of magnetic field strength and the chemical environment of the hydrogen nucleus; for protons in fat and in water, in a 1.5T magnet, about 250 msec and 3000 msec, respectively. A T.-weighted image will have a bright fat signal.
* * *
breast tumor smaller than 2 cm [TNM (tumor-node-metastasis) classification]; longitudinal relaxation time

* * *

tricuspid valve closure; see first heart sound, under sound.

Medical dictionary. 2011.


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.