|
Magnetic
Resonance -
Technology
Information
Portal |
Welcome to MRI Technology • |
|
|
 | Info
Sheets |
| | | | | | | | | | | | | | | | | | | | | | | | |
 | Out-
side |
| | | | |
|
| | | | | |
| Result: Searchterm 'relaxation'
found in 8 messages |
| Result Pages: [1] 2 |
More Results:  Database (90) News Service (8) Resources (3) |
|
|
Reader Mail
Fri. 12 May.06,
00:28
[Start of:
'T1/T2 relaxation time charts'
1 Reply]
 Category:
General
|
| T1/T2 relaxation time charts |
Does anyone have a reliable T1/T2 relaxation chart for the different tissue types? Or could you point me in the direction of a website that has them listed? I haven't been able to find a formula. Thank you.
|
|  View the whole thread | Reply to this thread
(login or register first) | |
mm jj
Thu. 31 Aug.17,
04:30
[Start of:
'flipping'
0 Reply]
Category:
General
|
| flipping |
hi
cam we flip net magnetisition vector more than 180? if so,what happens?
after flipping 360 degree,is there any relaxation?
360 pulse makes spins back to initial state?
thanks in advance.
|
| | Reply to this thread
(login or register first) | | |
|
Eric Gonzalez
Wed. 10 Oct.12,
20:06
[Reply (1 of 2) to:
'Brain T2FS postcontrast'
started by: 'kaisa bente'
on Thu. 27 Jan.11]
Category:
Applications and Examinations
|
| Brain T2FS postcontrast |
Gadolinium relaxation times are too short for T2 weighted imaging, so T2 weighted is not tipically performed after contrast (unless used as a delay to give contrast time to peak before T1 FS is obtained).
Also I have never worked at any facility that uses T2 fat sat imaging on the brain. Not a whole lot of fat in the brain region!
FLAIR imaging is the norm...but I could stand corrected.
|
| | View the whole thread | | |
Adana Osco Barras
Tue. 3 Jan.12,
21:09
[Reply (1 of 2) to:
'Hyperintense blood vessels in SE'
started by: 'Peruvumba Jayakumar'
on Thu. 29 Dec.11]
Category:
Sequences and Imaging Parameters
|
| Hyperintense blood vessels in SE |
Prolonged T1 relaxation times, decreased T1 tissue contrast, and increased susceptibility rnare typical effects at high field MRI.rnDue to the longer T1 times at 3T, the signal rnintensity inside the vessels is preserved even in smaller vessels. Try TR 700, TE 10.rnInversion recovery sequences are very well suited for optimal gray to white matter contrast, but enhancement after administration of gadolinium may not be visible.
|
| | View the whole thread | | |
John Jackson
Fri. 12 Sep.08,
08:48
[Reply (1 of 3) to:
'Regarding recovery and decay [basic phycisc]'
started by: 'harry sanders'
on Sat. 7 Jun.08]
Category:
Basics and Physics
|
| Regarding recovery and decay [basic phycisc] |
Hi,
I'm not so sure but I think because different physical process are being involved. Longitudal relaxation has got something to do with energy exchange to the environment. Transverse relation occurs because of spin dephasing (magnetic inhomogenity.)
John
|
| | View the whole thread | |
| |
| | Result Pages : [1] 2 | |
|
| |
 | Look
Ups |
| |
|
MR-TIP.com uses cookies! By browsing MR-TIP.com, you agree to our use of cookies. | | | [last update: 2024-02-26 03:41:00] |
|
|
bottom
top
