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| Result: Searchterm 'Magnet'
found in 87 messages |
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More Results:  Database (669) News Service (897) Resources (213) |
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Jon Selby
Tue. 26 Apr.16,
07:57
[Start of:
'Susceptibility artifact query'
0 Reply]
 Category:
General
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| Susceptibility artifact query |
As an MRI 'newbie' would someone be willing to help me with a question on magnetic susceptibility. If you have two metal implants of the same external geometrical form but one of these is hollow, would you you get the same size artifact? I'm basically wondering whether a metallic implant has a finite sphere of influence or whether it is compounded by the volume of material. Much appreciated, Jon
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Steven Ford
Thu. 17 Mar.16,
15:05
[Reply (1 of 2) to:
'Experiences with Artroscan C'
started by: 'Reader Mail'
on Fri. 3 Apr.15]
Category:
General
|
| Experiences with Artroscan C |
I know this is a really old question but I'm answering so that maybe others might learn.
The scanner you refer to is actually the E Scan (or possibly the E Scan XQ or the E Scan Opera) by Esaote.
You are correct, the flex coil for hips does not give good coverage or good signal. Most of our E Scan customers never use the coil.
A larger problem for hip studies is that the opening in the magnet and the FOV of the magnet severely limits the ability to scan patients of average and larger than average size.
the same can be said of doing shoulder exams on this scanner, in general the images are not met with happiness by the radiologists.
Steven Ford
Professional Imaging Services, Inc.
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John Smith
Wed. 11 Nov.15,
22:14
[Start of:
'Faster pulse sequences'
0 Reply]
Category:
General
|
| Faster pulse sequences |
Hi,
I have been learning about faster MRI sequences and have two questions
1) With "Fast (Turbo) gradient echo", in which we apply a spoiler gradient, do we not eventually end up with no longitudinal magnetization because TR is always shorter than T1? Hence shouldn't we eventually get no signal at all?
2) in SSFP (Steady-state free precession) we can apply an RF pulse of 90 degrees (in which T1>>T2) to get heart-blood contrast. How is this any different to a standard spin-echo sequence in terms of timing?
Thank you
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stephen cody
Fri. 13 Feb.15,
19:42
[Reply (22 of 26) to:
'MRI Technologists Jobs in Saudi Arabia'
started by: 'Mosta Mosta'
on Tue. 3 Mar.09]
Category:
Jobs
|
| MRI Technologists Jobs in Saudi Arabia |
Hello I am interested in your mri position please review my resume and let me know if I can be of service. Thank You
Stephen Cody
Stephen M. Cody, ARRT, R, MR
324 Catalpa St. #115
San Mateo CA. 94401
(832) 816-8514
smcody@hotmail.com
Education
Academy of Health Sciences, Fort Sam Houston, San Antonio, Texas
Radiology Technologist Program - September 1977
Summary of qualifications
More than 25 years of radiology experience; 15 years training others
Registered by the ARRT
Fully experienced with diagnostic techniques using CT and MRI
Organized, efficient and a problem-solver
Work experience
San Francisco General Hospital 3/11-present
Optimizing protocols, training staff and doing cardiac MRI.
National Institutes of Health 3/09-2/11
oLead MRI technologist. Trained staff on Siemens MRI scanners, performed cardiac MRI and spectroscopy on the heart and liver. Worked with physicists and radiologists on various research protocols.
Phillips Medical 1/08-2/09
Verification and validation testing on the Phillips iSite Pacs
Contractor 9/04-08
Completed several MRI assignments across the United States, listed below:
Piedmont Medical Center, Rock Hill, S.C.
UC-Davis Hospital, Sacramento, Calif.
Brazosport Memorial Hospital, Lake Jackson, Texas
Bay Medical Center, Panama City, Fla.
Memorial Hermann Hospital System, Houston, Texas
Presbyterian Hospital, Dallas, Texas
Oregon Health Sciences Hospital, Portland, Ore.
Neurology Consultants of Dallas 9/03-3/04
Facilitated startup and operation of the neurology group's MRI services.
Southwest Diagnostic Imaging Center 3/03-12/-03
(Concurrent with neurology center)
Med Relief Staffing 1/00-2/03
National University Hospital of Singapore 2/96-12/99
MRI technologist, responsible for training staff and managing MRI operations.
Jacinto MRI Center 8/93-1/96
Chief technician of this Houston, Texas, center, which initially started with MRI and expanded to a full-range outpatient center. Responsibilities included training staff in CT and MRI; broad technical direction; marketing and RSO.
Spectrum Imaging 4/90-7/92
Manager for this Houston, Texas, center. Was responsible for marketing, business development, technical operations and equipment purchases.
Houston Imaging Centers 1/89-3/90
MRI supervisor, standardizing centers' protocols, including a Q.A. program. Trained several new techs.
The Methodist Hospital 2/84-10/88
Angio, CT technician. Performed and trained in various angio and CT procedures. MRI training began in my last year of employment.
Equipment:
CT: GE 9800, Quick Advantage, Cytech, Siemens DRH
MRI: Technicare.6 Phonar .3 GE Cigna 4X and 5X 9X 14X 16X, 1.5 and 3T; Toshiba Opart; Hitachi 7000 and Aris; Phillips 1.5 NT and T5; Elscint .5; Siemens 1.5 Vision and .2 Open Viva Magnets; Siemens 1.5 Symphony Maestro Class, Avanto and Espirit Verio 3T; Phillips 1.5 Intera 3T Achieva
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Reader Mail
Wed. 29 Oct.14,
20:38
[Start of:
'Vibrant Sound Bridge and MRI'
0 Reply]
Category:
Devices, Scanner, Machines
|
| Vibrant Sound Bridge and MRI |
Hello everyone,
I have a Vibrant Soundbridge implanted on both sides of my skull, which contain a magnet. I use them due to severe hearing impairment.
Now the question is, I was told that MRI was prohibited for patients with a Vibrant Soundbridge.
Could anyone suggest an alternative to this problem please? Is there another equipment allowing me to have the conclusions normally obtained from MRI? My problem is an accident to my spinal cord, which requires further investigation using an MRI.
I would appreciate any help!
Thanks a lot
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