T1

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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 milliseconds and 3000 milliseconds, respectively. A T1-weighted image will have a bright fat signal.

T1/2

symbol for the half-life of a radioactive isotope. Half-life has -t1/2.

T1, T2, ...

symbols for thoracic nerves.

T1, T2

T1

An MRI term for the time constant at which spins realign themselves with the external magnetic field after excitation.

T1

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.
References in periodicals archive ?
A passes to T-1, who square-passes to T-2 - who looks for A running the overlap.
At one point, the monstrous T-1,000,000 is frozen, just as happened to the T-1000 in ``T2,'' and shatters.
net's dependence on third-party providers to supply it with local DSL and T-1 facilities in areas where it has not deployed its own equipment.
Utilizing T-1 allows for the convergence of multiple services such as voice, video and data," said Bral.
Cable & Wireless NxT-1 Internet access gives customers the flexibility to bundle T-1 circuits together to gain greater throughput as their bandwidth requirements grow.
PSINet's Multi-Megabit Service bonds up to seven T-1 circuits in increments between 3Mbps and 10.
Compared with highly touted DSL access, T-1 access provides impeccable scalability and reliability, a flexible conductivity and stronger backbone with a higher bandwidth.
SkyCom T-1 MultiMux Series offering inter-building and last mile transport of 4 x T-1 for multiservice ATM inverse multiplexers, PABX, data and video at distances up to 2.
SkyCom T-1 Multi-Mux provides transmission connectivity for the industry's new generation of ATM inverse multiplexers, or traditional data, PABX trunks, and video.
NASDAQ SmallCap Market:RMII, RMIIW) announced today that it will offer high-speed T-1 Internet access to Colorado customers at a substantial discount.
OTC BB:IJNT) announced today that it is now offering a full range of Internet solutions including such diversity as dial-up services through network administration, two-way and downstream wireless T-1 solutions.
Dialogic voice boards range from the industry leading two- and four-port products for small CT systems, through the high density industry workhorse Springware-based single span and DualSpan(tm) Series all the way to the new industry benchmark DM3-based QuadSpan(tm) series, providing up to 120 channels (four T-1 or E-1 spans) of combined Digital Signaling Processing (DSP) and network interface on a single card, in a single slot.