Magnetic Resonance - Technology Information Portal Welcome to MRI Technology
Info
  Sheets

Out-
      side
 



 
 'Inversion Recovery' 
SEARCH FOR    
 
  2 3 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Result : Searchterm 'Inversion Recovery' found in 13 terms [] and 30 definitions []
previous     6 - 10 (of 43)     next
Result Pages : [1 2 3]  [4 5 6 7 8 9]
Searchterm 'Inversion Recovery' was also found in the following services: 
spacer
News  (1)  Resources  (2)  Forum  (3)  
 
Multiplanar Inversion RecoveryInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(MPIR) An inversion recovery sequence with 3D acquisition.

See Inversion Recovery Sequence.
spacer
MRI Resources 
Colonography - Examinations - PACS - Blood Flow Imaging - Abdominal Imaging - Veterinary MRI
 
Fluid Attenuation Inversion RecoveryInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(FLAIR) Fluid attenuation inversion recovery is a special inversion recovery sequence with long TI to remove the effects of fluid from the resulting images. The TI time of the FLAIR pulse sequence is adjusted to the relaxation time of the component that should be suppressed. For fluid suppression the inversion time (long TI) is set to the zero crossing point of fluid, resulting in the signal being 'erased'.
Lesions that are normally covered by bright fluid signals using conventional T2 contrast are made visible by the dark fluid technique FLAIR is an important technique for the differentiation of brain and spine lesions.

See also Inversion Recovery.
 
Images, Movies, Sliders:
 Brain MRI Coronal FLAIR 001  Open this link in a new window
    
 
spacer

• View the DATABASE results for 'Fluid Attenuation Inversion Recovery' (5).Open this link in a new window

 
Further Reading:
  Basics:
Newer Sequences for Spinal MR Imaging: Smorgasbord or Succotash of Acronyms?
   by www.ajnr.org    
  News & More:
What MRI-Derived Data and Other Factors Reveal About White Matter Hyperintensity in Former Football Players
Saturday, 23 December 2023   by www.diagnosticimaging.com    
FLAIR Vascular Hyperintensity: An Important MRI Marker in Patients with Transient Ischemic Attack
Thursday, 14 July 2022   by www.dovepress.com    
Early Identification of Ischemic Stroke With DWI-FLAIR Mismatch
Wednesday, 5 January 2011   by www.doctorslounge.com    
MRI Resources 
Education - Used and Refurbished MRI Equipment - Safety Products - MRI Technician and Technologist Schools - MRI Centers - MRI Technician and Technologist Career
 
Inversion Recovery Echo Planar ImagingInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
spacer
Searchterm 'Inversion Recovery' was also found in the following services: 
spacer
News  (1)  Resources  (2)  Forum  (3)  
 
Double Inversion Recovery T1 MeasurementInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.MRI Resource Directory:
 - Sequences -
 
(DIR or DIRT1) Double inversion recovery T1 measurement is a T1 weighted black blood MRA sequence in which the signal from blood is suppressed. The inversion time to suppress blood is described as the duration between the initial inversion pulse and time point that the longitudinal magnetization of blood reaches the zero point. The readout starts at the blood suppression inversion time (BSP TI) and blood in the imaging slice gives no signal. This inversion time is around 650 ms with a 60 beat per minute heart rate at 1.5 T.
The TI can be decreased by using a wider receive bandwidth, shorter echo train length and/or narrow trigger window. Wide bandwidth also decreases the blurring caused by long echo trains at the expense of signal to noise ratio. In case of in plane or slow flow the suppression of the signal from blood may be incomplete. With increased TE or change of the image plane the blood suppression can be improved.
Double inversion recovery is a breath hold technique with one image per acquisition used in cardiovascular imaging. The patient is instructed to hold the breath in expiration (if not possible also inspiration can be taken), so that the end diastolic volume in the cardiac chambers would be the same during entire scanning. DIR provides fine details of the boundary between the lumen and the wall of the cardiac chambers and main vascular and heart structures, pericardium, and mediastinal tissues.
 
Images, Movies, Sliders:
 Normal Dual Inversion Fast Spin-echo  Open this link in a new window
      

Courtesy of  Robert R. Edelman

 
spacer

• View the DATABASE results for 'Double Inversion Recovery T1 Measurement' (2).Open this link in a new window

 
Further Reading:
  News & More:
Artificial double inversion recovery images can substitute conventionally acquired images: an MRI-histology study
Wednesday, 16 February 2022   by www.nature.com    
MRI Resources 
Distributors - Spine MRI - Intraoperative MRI - Pediatric and Fetal MRI - MR Guided Interventions - Spectroscopy pool
 
Spectral Presaturation Inversion Recovery
 
(SPIR) A specialized technique that selectively saturates fat protons prior to acquiring data as in standard sequences, so that they produce a negligible signal. The presaturation pulse is applied prior to each slice selection. This technique requires a very homogeneous magnetic field and very precise frequency calibration.
 
Images, Movies, Sliders:
 MRI Orbita T2 FatSat  Open this link in a new window
    
 
spacer

• View the DATABASE results for 'Spectral Presaturation Inversion Recovery' (2).Open this link in a new window

 
Further Reading:
  Basics:
Sequence for Philips(.pdf)
   by www.droid.cuhk.edu.hk    
Optimizing SPIR and SPAIR fat suppression
Tuesday, 30 November 2004   by clinical.netforum.healthcare.philips.com    
Techniques of Fat Suppression(.pdf)
   by cds.ismrm.org    
MRI Resources 
General - MRCP - Cochlear Implant - Universities - MRI Technician and Technologist Schools - Pathology
 
previous      6 - 10 (of 43)     next
Result Pages : [1 2 3]  [4 5 6 7 8 9]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

MR-TIP    
Community   
User
Pass
Forgot your UserID/Password ?    



MRI is trending to low field magnets :
reduced costs will lead to this change 
AI will close the gap to high field 
only in remote areas 
is only temporary 
never 

Look
      Ups





MR-TIP.com uses cookies! By browsing MR-TIP.com, you agree to our use of cookies.

Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • Medical-Ultrasound-Imaging • 
Copyright © 2003 - 2024 SoftWays. All rights reserved. [ 28 March 2024]
Terms of Use | Privacy Policy | Advertising
 [last update: 2024-02-26 03:41:00]