 | Info
Sheets |
| | | | | | | | | | | | | | | | | | | | | | | | |
 | Out-
side |
| | | | |
|
| | | | | |
| Result: Searchterm 'Intera'
found in 10 messages |
| Result Pages: [1] 2 |
More Results:  Database (45) News Service (9) Resources (22) |
|
|
Math G
Fri. 30 Jun.17,
21:02
[Reply (10 of 12) to:
'90 excitation pulse vs 180 inversion pulse'
started by: 'Bjorn Redfors'
on Sat. 27 Jun.09]
 Category:
Basics and Physics
|
| 90 excitation pulse vs 180 inversion pulse |
I will try an answer to this rather old tread, in case someone stumble upon this like me.
The phenomenon of "coherence" that produce transverse magnetization after a 90 RF pulse cannot be answered by classical mechanics, or any simple model that represents individual protons as precessing magnets in either the parallel/antiparallel direction with regards to the MRI magnetic field.
Rather, it is a phenomenon related to quantum mechanics and the effect of a RF field on a interacting group of particles with spins (not necessarily oriented as parallel/antiparallel, I might add, even under the effect of a magnetic field).
The simplest depiction, as I understand, would be to imagine a group of spins as literally rotating as a whole under the effect of the RF. After a certain time (corresponding to a 90 degree pulse), the net magnetization that was oriented parallel to the MRI magnetic field, is now oriented in the transverse plane, causing transverse magnetization and signal. If you further apply RF, the system will continue to rotate, shifting gradually toward an antiparralel orientation, losing transverse magnetization in the process.
Hope its clearer!
|
|  View the whole thread | | |
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
|
| | View the whole thread | | | |
|
Robert Patten
Thu. 3 Mar.11,
22:08
[Start of:
'Building 3d Volumes from MRI DICOM'
4 Replies]
Category:
General
|
| Building 3d Volumes from MRI DICOM |
I have a number of MRI and CTs since a bad accident. I am a Mechanical Engineer with an electrical, power and computer background.
I was able to render the CT to 3D using Onis (not sure if you've seen this program), but have been unable to manage it with any of the MRIs.
The MRIs were taken on a Phillips Intera 1.5T
I can render a volume but only (1) of the (3) 2D images are clear before it is rendered and the resulting 3D image is just noise. I've tried various software packages and spent a lot of time with the software. Perhaps I don't have the required image files.
Maybe someone knows the answer.
Thanks,
Bob
|
| | View the whole thread | Reply to this thread
(login or register first) | |
Reader Mail
Thu. 20 Jan.11,
17:12
[Start of:
'Philips Pin Config - 4 channel'
0 Reply]
Category:
Devices, Scanner, Machines
|
| Philips Pin Config - 4 channel |
Need the pin out configuration for 4 channel coil for Philips Intera and Achieva.
|
| | Reply to this thread
(login or register first) | |
Reader Mail
Wed. 8 Sep.10,
15:17
[Start of:
'MR assesment liver iron'
0 Reply]
Category:
Applications and Examinations
|
| MR assesment liver iron |
Hi, can somebody advice me how to start liver iron assesment in my 1.5T philips intera MRI. at the moment we donot do it.
|
| | Reply to this thread
(login or register first) |
| |
| | Result Pages : [1] 2 | |
|
| |
 | Look
Ups |
| |
bottom
top
