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


Out-
      side
 



 
 'Spin' 
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 'Spin' found in 49 terms [] and 268 definitions []
1 - 5 (of 317)     next
Result Pages : [1 2 3 4 5 6 7 8 9 10]  [11 12 13 14 15 16 17 18 19 20 ... ]
Searchterm 'Spin' was also found in the following services: 
spacer
News  (64)  Resources  (27)  Forum  (47)  
 
SpinForum -
related threads
 
The NMR, MRI relevant nuclear spin is the rotational movement of a subatomic particle (proton or neutron) around its axis. Whether a nucleus has an overall spin, depends on its amount of protons and neutrons. Nuclei with an identical number of protons and neutrons cancel out their overall spins. Nuclei with an odd number of protons or an odd number of neutrons or both have an overall spin. This spin is measured with a nuclear spin quantum number (I). The nuclear spin quantum number of a nuclei depends on the protons/neutrons which are not paired, and is a positive integer multiple of 0.5. 1H, 19F, 13C, 31P and 15N are examples of nuclei with an nuclear spin quantum number of 0.5, 2H and 14N have a nuclear spin quantum number of 1.
See also Spin Quantum Number.
spacer
 
• Share the entry 'Spin':  Facebook  Twitter  LinkedIn  
 
• Related Searches:
    • Arterial Spin Labeling
    • Gyromagnetic Ratio
    • Spin Echo
    • Magnetic Resonance Imaging MRI
    • Magnetic Field
 
Further Reading:
  Basics:
How does the proton get its spin?
Wednesday, 17 February 2010   by www.physorg.com    
  News & More:
Researchers increase NMR/MRI sensitivity through hyperpolarization of nuclei in diamond
Wednesday, 5 June 2013   by phys.org    
Spin improves medical imaging
Tuesday, 25 November 2008   by www.theengineer.co.uk    
Carbomap creates 'MRI scanner for forests'
Thursday, 22 August 2013   by www.scotsman.com    
Searchterm 'Spin' was also found in the following services: 
spacer
Radiology  (12) Open this link in a new windowUltrasound  (2) Open this link in a new windowMarket  (1) Open this link in a new window
Spin EchoForum -
related threads
 
(SE) The Reappearance of the MR signal after the FID has apparently died away, as a result of the effective reversal (rephasing) of the dephasing spins by techniques such as specific RF pulse sequences or pairs of field gradient pulses, applied in time shorter than or on the order of T2. Proper selection of the TE time of the pulse sequence can help to control the amount of T1 or T2 contrast present in the image. Pulse sequences of the spin echo type, usually employs a 90° pulse, followed by one or more 180° pulses to eliminate field inhomogeneity and chemical shift effects at the echo. Caused by this 180° refocusing pulse, spin echo or fast spin echo (FSE, TSE) sequences are more robust against e.g. susceptibility artifacts than sequences of the gradient echo type.
spacer

• View the DATABASE results for 'Spin Echo' (96).Open this link in a new window


• View the NEWS results for 'Spin Echo' (1).Open this link in a new window.
 
Further Reading:
  Basics:
Spin echoes, CPMG and T2 relaxation - Introductory NMR & MRI from Magritek
2013   by www.azom.com    
  News & More:
EVALUATION OF HUMAN STROKE BY MR IMAGING
2000
Technical Assessment of Artifact Production from Neuro Endovascular Coil At 3 Tesla MRI: An In Vitro Study
2012   by www.tmps.or.th    
MRI Resources 
Cardiovascular Imaging - Research Labs - Anatomy - Stimulator pool - Nerve Stimulator -
 
Spine MRIMRI Resource Directory:
 - Spine MRI -
 
Magnetic resonance imaging (MRI) of the spine is a noninvasive procedure to evaluate different types of tissue, including the spinal cord, vertebral disks and spaces between the vertebrae through which the nerves travel, as well as distinguish healthy tissue from diseased tissue.
The cervical, thoracic and lumbar spine MRI should be scanned in individual sections. The scan protocol parameter like e.g. the field of view (FOV), slice thickness and matrix are usually different for cervical, thoracic and lumbar spine MRI, but the method is similar. The standard views in the basic spinal MRI scan to create detailed slices (cross sections) are sagittal T1 weighted and T2 weighted images over the whole body part, and transverse (e.g. multi angle oblique) over the region of interest with different pulse sequences according to the result of the sagittal slices. Additional views or different types of pulse sequences like fat suppression, fluid attenuation inversion recovery (FLAIR) or diffusion weighted imaging are created dependent on the indication.
Indications:
Neurological deficit, evidence of radiculopathy, cauda equina compression
Primary tumors or drop metastases
Infection/inflammatory disease, multiple sclerosis
Postoperative evaluation of lumbar spine: disk vs. scar
Evaluation of syrinx
Localized back pain with no radiculopathy (leg pain)

Contrast enhanced MRI techniques delineate infections vs. malignancies, show a syrinx cavity and support to differentiate the postoperative conditions. After surgery for disk disease, significant fibrosis can occur in the spine. This scarring can mimic residual disk herniation. Magnetic resonance myelography evaluates spinal stenosis and various intervertebral discs can be imaged with multi angle oblique techniques. Cine series can be used to show true range of motion studies of parts of the spine. Advanced open MRI devices are developed to perform positional scans in the position of pain or symptom (e.g. Upright™ MRI formerly Stand-Up MRI).
 
Images, Movies, Sliders:
 Anatomic Imaging of the Lumbar Spine  Open this link in a new window
      

Courtesy of  Robert R. Edelman

 
Radiology-tip.comBone Densitometry,  Myelography
spacer

• View the DATABASE results for 'Spine MRI' (11).Open this link in a new window


• View the NEWS results for 'Spine MRI' (4).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    
Cutting Edge Imaging of THE Spine
February 2007   by www.pubmedcentral.nih.gov    
Landmark Independent Study by UCLA School of Medicine Reports Comparison of Dynamic™ Upright® MRI With Static Upright MRI in More Than 1,000 Patients (1,302):
Thursday, 15 November 2007   by www.fonar.com    
  News & More:
Discriminating imaging findings of acute osteoporotic vertebral fracture: a prospective multicenter cohort study
Thursday, 9 October 2014   by 7thspace.com    
Lumbar spine MRI limited in diagnosing ankylosing spondylitis
Friday, 7 March 2014   by www.healio.com    
MRI Of The Spine Identifies Smoldering Myeloma Patients At High Risk Of Progressing To Multiple Myeloma
Tuesday, 26 August 2014   by www.myelomabeacon.com    
Intensive training of young tennis players causes spinal damage
Wednesday, 18 July 2007   by www.eurekalert.org    
Imaging Technique for Spinal Cord Injury Shows Promise
Sunday, 22 December 2013   by www.wauwatosanow.com    
Searchterm 'Spin' was also found in the following services: 
spacer
News  (64)  Resources  (27)  Forum  (47)  
 
Spin Packet
 
A number of spins affected by the same magnetic field.
spacer

• View the DATABASE results for 'Spin Packet' (2).Open this link in a new window

Searchterm 'Spin' was also found in the following services: 
spacer
Radiology  (12) Open this link in a new windowUltrasound  (2) Open this link in a new windowMarket  (1) Open this link in a new window
Nuclear Spin
 
An intrinsic property of certain nuclei that gives them an associated characteristic angular momentum and magnetic moment also known as inherent spin (those with odd numbers of protons and/or neutrons in their nucleus). Nuclei that do not exhibit this characteristic will not produce a NMR signal.
spacer

• View the DATABASE results for 'Nuclear Spin' (10).Open this link in a new window


• View the NEWS results for 'Nuclear Spin' (1).Open this link in a new window.
MRI Resources 
Cochlear Implant - Spine MRI - MRI Centers - Musculoskeletal and Joint MRI - Shielding - Portals
 
     1 - 5 (of 317)     next
Result Pages : [1 2 3 4 5 6 7 8 9 10]  [11 12 13 14 15 16 17 18 19 20 ... ]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

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



In 2075 (after about 100 years of ...) the MRI scan will be :
obsolete 
done with handheld probe 
done at home (app, ...) 
a 3 second walk through 
daily done 
replaced by something much ... 

Look
      Ups





Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • US-TIP • The-Medical-Market
Copyright © 2003 - 2016 SoftWays. All rights reserved. [ 23 January 2017]
Terms of Use | Privacy Policy | Advertising
 [last update: 2017-01-13 03:47:00]